isis rs3871 on redtop

[bmxer882x]

Alright so im looking to upgrade my turbo but i'm not entirely sure what all i will need so i'm going to ask so i get it done right the first time.
I plan on buying the entire rs3871 kit off of enjuku. Which comes with the braided lines.
now my first question is does anyone know what oil return line i should use? is it the t28 style off of the s14?
secondly will it bolt right up to my existing setup or do i need a reclocking set also?

I'm sorry if they are noob questions it's my first turbo car and im starting out upgrading this first.

Thanks in advance

[ultimateirving]

What are you running right now? i had the rs3871, its a direct bolt on, but you may need to have your intercooler pipes adjusted to fit. It has a 3" hotside outlet, and you need to get something to accomodate that.
The braided lines are fine, and the oil return i used was the same as my t28 return, it fits perfectly

[omgRWDgoodness!]

You're not doing anything right the first time if you're buying anything fucking ISIS, let alone a turbo...holy shit. I think I would rather slit my wrists. Can I just give you my PayPal address so I can have that money you're wasting?

[bmxer882x]

Ive seen several good reviews on it. I have around 1500 to budget, I could go with a 2871 but then id have to stick with stock mani... Sobur saying I should lean that way?

Im running the stock t25 off of a redtop. So I would need to get t28 oil return line, thanks

[Bmxer300zx]

You have $1500 don't buy the damn isis crap if your gona buy knockoff just do godspeed or cxracing.
Why not a tomei arms turbo? They're direct bolton and 400hp+ capable for $1300. Or a kinugawa has a bolt on for the sr20 at $800 uses garrett wheels and balanced by schwitzer can do 400+hp.
There's a ton of other options garrett, turbonetics, precicion and so on. isis is overpriced knockoff I'd rather take my chances on a cxracing or godspeed turbo at least you'll save money before shit goes south.
My buddy just got on of the isis rs38 kit and had it for 30 miles and all the gaskets started to leak so bad enjuku replaced em . But still shouldnt of happened for the price he payed.

[Hashiriya415]

Young kids these days and car parts.
It's like a hot girl behind an alley that's opening her legs for you. Your balls are doing all the thinking, so when you get there you find out there are couple guys were hiding and start jumping on you. Robbing you, rapping you, and possibly killing you.

How is this related to you?
Your making same decision with the turbo.
Many of the cheap Chinese turbo's fail. Some after minutes of use.
Have you thought about what happens when it starts breaking apart and pieces fall into the engine?
Have the money ready for a tow truck?
Have the time to do the work again? If you need this car to get to work and school.
Will they give you refund right away? They hassled me after it fell apart minutes of turning the car on. I had to file complaint with pay-pal.

[bmxer882x]

didn't realize i would get so much hate for even considering it. i had seen a few threads where people had issues but enjuku sent a new one after it had issues. Its not my dd so i dont NEED the car... but i do like having it running.
I have 1500 budgeted so that would need to include turbo, reclocking parts, and oil feed and return lines. So i guess i should just go with the 2871 as im looking to make around 350 hp max.
Thanks for your guys help. And sorry for asking dumb questions, i just don't want to spend way extra for something that isnt required unless your going for a huge build... which i dont think 350 is all to insane.

[Hashiriya415]

Just get a stock s15 turbo. They can be bought brand new for around $700-$800 if I remember right.... Haven't looked at price of that for years.

[ayeebert]

im running that exact turbo on my sr and works perfect i have a tial wastegate to it and ive never had any issues with my turbo. if you find a good deal id say yes.

[LayNLow]

didn't realize i would get so much hate for even considering it. i had seen a few threads where people had issues but enjuku sent a new one after it had issues. Its not my dd so i dont NEED the car... but i do like having it running.
I have 1500 budgeted so that would need to include turbo, reclocking parts, and oil feed and return lines. So i guess i should just go with the 2871 as im looking to make around 350 hp max.
Thanks for your guys help. And sorry for asking dumb questions, i just don't want to spend way extra for something that isnt required unless your going for a huge build... which i dont think 350 is all to insane.

So you are going to spend 1500 on a turbo setup, and you want to make 350whp. Did you even figure in the fact that you are going to need
1. A tune
2. Z32 MAF
and 3. Bigger injectors
Do some research on what you want first, especially if you are on a budget. Stock intake manifold and exhaust manifold are good enough for 300+, no need to waste money on junk thats going to crack eventually. Go browse the classifieds here, buy a 2871 .64 t25 housing for ~700, buy Z32 Maf ~70 Buy some 550cc injectors that arent deatschwerks for ~300 then get a tune from a reputable company for your mods ~400 . Bam 1500$ reliable setup on the stock manifolds that will be good for ~320whp depending on the tuner.

[bmxer882x]

So you are going to spend 1500 on a turbo setup, and you want to make 350whp. Did you even figure in the fact that you are going to need
1. A tune
2. Z32 MAF
and 3. Bigger injectors
Do some research on what you want first, especially if you are on a budget. Stock intake manifold and exhaust manifold are good enough for 300+, no need to waste money on junk thats going to crack eventually. Go browse the classifieds here, buy a 2871 .64 t25 housing for ~700, buy Z32 Maf ~70 Buy some 550cc injectors that arent deatschwerks for ~300 then get a tune from a reputable company for your mods ~400 . Bam 1500$ reliable setup on the stock manifolds that will be good for ~320whp depending on the tuner.

I know all of this, was going to run the sr maf until I get a flash. Then swapping to z32, also I plan on going with id1000's and topfeed. Then converting to e85. I juus kinda wanted to upgrade the turbo first. Im tired of how this t25 pulls have beeen since day 1

[tx240ss]

The last three posts are right on... my choice would be the t28 (S15) turbo fresh from courtesy nissan for 750, some 550 injectors, a z32 maf, a Walbro fuel pump, FMIC, and 3 inch exhaust, ROM ECU, and a tune, and leave it alone.. you'll have more power than you can handle.

[ultimateirving]

The last three posts are right on... my choice would be the t28 (S15) turbo fresh from courtesy nissan for 750, some 550 injectors, a z32 maf, a Walbro fuel pump, FMIC, and 3 inch exhaust, ROM ECU, and a tune, and leave it alone.. you'll have more power than you can handle.

BMXer, these guys have never run an isis turbo and dont know anything about it. I have and it worked wonderul. They come with a good warranty so if you have an issue get it replaced. I bought mine brand new for $380.. There are plenty of other owners who have bought the RS3871 without issue!

So the rest of you can suck it with your speculation!

[ultimateirving]

ALSO since its not ur daily driver, Go e85 and get 850 cc or 1000cc injectors. Hit 350 all day long with room to spare.
$1500 is more than enough to get to 350 hp, especially since you already have the SR in the car.

[Bmxer300zx]

BMXer, these guys have never run an isis turbo and dont know anything about it. I have and it worked wonderul. They come with a good warranty so if you have an issue get it replaced. I bought mine brand new for $380.. There are plenty of other owners who have bought the RS3871 without issue!

So the rest of you can suck it with your speculation!

Your right my best friend didn't have one and had to replace all the the gaskets after 37 miles.
Far as the turbo it's still working he just fired the car up lets see if it stays good longer this time.

[Bmxer300zx]

Just get a stock s15 turbo. They can be bought brand new for around $700-$800 if I remember right.... Haven't looked at price of that for years.

I think like $850 shipped yes. I was trying to talk my buddy into this exact turbo till he bought the isis one. Needless to say it was off the car in 37miles for gasket replacement after a few days of phone calls and emails.

[ocn]

Ive seen several good reviews on it. I have around 1500 to budget, I could go with a 2871 but then id have to stick with stock mani... Sobur saying I should lean that way?

Im running the stock t25 off of a redtop. So I would need to get t28 oil return line, thanks

Tomei M7960 crazy power from just a bolt on and with a 1500 dollar budget why cheap out. i would definatly go this route ... Tomei 173019 M7960 ARMS Turbo Kit SR20DET S13 S14 S15 (http://www.frsport.com/Tomei-173019-M7960-ARMS-Turbo-Kit-SR20DET-S13-S14-S15_p_17088.html)

[ultimateirving]

I think like $850 shipped yes. I was trying to talk my buddy into this exact turbo till he bought the isis one. Needless to say it was off the car in 37miles for gasket replacement after a few days of phone calls and emails.

What gaskets are you talking about? The one that go between the turbo and manifold, and one that goes between turbo and o2 housing.. The drain pipe gasket?

And how would that be a defect of the turbo? if your friend didnt properly install it the gasket would be more likely to blow out or fry.


Also OP, here is my write up of the turbo(http://zilvia.net/f/engine-tech/449269-isis-rs3871-install-thread.html) when i bought and installed it. ALSO read the other people who run it and love it...

Oh and whoever recommended the s15 turbo 15-18 psi max on that turbo, any more boost and its blowing hot air... its not gonna be good up to 350..

[b4l]

Alright so im looking to upgrade my turbo but i'm not entirely sure what all i will need so i'm going to ask so i get it done right the first time.
I plan on buying the entire rs3871 kit off of enjuku. Which comes with the braided lines.
now my first question is does anyone know what oil return line i should use? is it the t28 style off of the s14?
secondly will it bolt right up to my existing setup or do i need a reclocking set also?

I'm sorry if they are noob questions it's my first turbo car and im starting out upgrading this first.

Thanks in advance

I would just call enjuku they are great guys over there and will be able to fill you in what as much knowledge as possible.

[Johannes]

Lol people these days.

I've been running my ISIS RS3871 for a year and a half now and it's still running perfect.
I checked my turbo shaft play two days ago and it's still in great condition, no in and out play, barely any up/down.
I don't know why people are talking crap about an item they have probably never used before.
I also daily my SR20, yes daily. I put at least 20-30 miles on it everyday, boosting every day.

I was running it @ 14 psi before. But now @ 18-20 psi with tune.

Dyno'ed at 297 @ 13 psi with Poncams, 850cc, Z32 maf.

Also, in no way I'm associated or getting paid by Isis to vouch for their products. I just think sometimes, there are cheaper ways on going into buying reliable parts.

Just make sure you're using the right oil feed line, oil restrictor and proper cooling lines for it.

[ultimateirving]

Lol people these days.

I've been running my ISIS RS3871 for a year and a half now and it's still running perfect.
I checked my turbo shaft play two days ago and it's still great, no in and out play, barely any up/down.
I don't know why people are talking crap about an item they have probably never used before.
I also daily my SR20, yes daily. I put at least 20-30 miles on it everyday, boosting every day.

I was running it @ 14 psi before. But now @ 18-20 psi with tune.

Dyno'ed at 297 @ 13 psi with Poncams, 850cc, Z32 maf.

Also, in no way I'm associated or getting paid by Isis to vouch for their products. I just think sometimes, there are cheaper ways on going into buying reliable parts.

Just make sure you're using the right oil feed line, oil restrictor and proper cooling lines for it.

Thank you from a fellow rs3871 owner
More than likely BMXer300zx, your friend didnt install it properly.

Also i laugh when you say over priced. They are some of the cheapest right now, and do not have the same reputation as cxracing or godspeed. How can you argue with a brand new turbo under $400..
Do me a favor and search for people with issues on GSP turbos, then search for ISIS.

[Bmxer300zx]

Simple I wouldn't use a $400 turbo. As far as installing wrong considering the amount of Engine swaps and cars he has had, in the past year even and none have had a problem, I doubt it.
It's sad when enjuku tells you to rip a brand new turbo off the car and have it looked over and tested due to them having issues with the seals failing. Low and behold he found the problem.
If someone wants to buy a $400 turbo then go for it. I didn't say "Get a cx/godspeed turbo" cause it was a good thing to do.
Far as that turbo you're talking about I read mixed reviews, I've seen negative to it and even first hand through a friend.
O.P if you get the turbo I hope it works well for you my only opinion on it is what I've seen and other options available for only a few hundred more.

[AJZax]

Primary failure from cheap turbos is due to lack of precise balancing or any balancing at all. If you actually break down the engineering of a turbo, they are actually fairly simple in principal. Obviously there's a lot of engineering that goes into making a competitive high performance turbo. As you have differing material thermal expansion and enthalpy rates. Then of course you have to consider your wheel profiling and geometry for efficiency and volumetric flow rates. But when you're copying something it's a lot easier to get it right. The tolerances are just fairly tight. It's not like they're building ISIS nuclear power plants lolol.
ex:
--- if I handed you a hard ass chemistry problem or something and you had to figure it out by yourself
VS
--- if I handed you hard ass chemistry problem, with an extra paper with work to get the answer and the answer itself

ISIS is just copying garrett gt2871r, it's just journal bearing instead of dual ball bearing.
ISIS actually balances all their turbos, and enjuku stands behind everything they sell.
I will vouch for Johannes' turbo. It pulls hard. I find a garrett gt2871r a COMPLETE waste of money. With this size of turbo there's not really any lag anyway. Not to be a dick, but if you are complaining about lag with this size turbo, learn how to freakin drive.

ISIS parts used so far:
-ISIS oil cooler kit (I was very impressed by this kit actually. I honestly expected leaks and issues, but no issues at all so far. And works awesome)
-ISIS rear arms (decent quality arms)
-ISIS subframe bushings (perfect fit and great)
-ISIS turbo manifold (needed some modifications to fit gt3076r (garrett) and switch flange for v-band tial

Personal seen experience:
-ISIS turbo lines local pro-am car uses these. --- look up kyle pollard racing. He runs isis on his missile/pro am car.
-ISIS radiator (amazingly holds pressure after rear ending someone [gf's car :/ ])
-ISIS turbo (Johannes's turbo) --- works PERFECT spools fast, pulls hard


Shoot I'm thinking about buying some ISIS sway bars and fabbing up some adj. spherical endlinks. Why not? :p
Maybe we'll do a stiffness BENCH test (no but dyno crap lol).

So far I'm confident in ISIS.
That's the first I've heard of the seals goign otu though :/

[godsmack]

Simple I wouldn't use a $400 turbo. As far as installing wrong considering the amount of Engine swaps and cars he has had, in the past year even and none have had a problem, I doubt it.
It's sad when enjuku tells you to rip a brand new turbo off the car and have it looked over and tested due to them having issues with the seals failing. Low and behold he found the problem.
If someone wants to buy a $400 turbo then go for it. I didn't say "Get a cx/godspeed turbo" cause it was a good thing to do.
Far as that turbo you're talking about I read mixed reviews, I've seen negative to it and even first hand through a friend.
O.P if you get the turbo I hope it works well for you my only opinion on it is what I've seen and other options available for only a few hundred more.

Haven't heard any problems like what your friend had when ppl used the proper lines that enjuku recommends when you buy the turbo. Did your friend use his lines that were previously there or did he use the recommended lines?

[ocn]

u have to modify the oil feed or return line fitting .. great quality.. not my money have fun.

[iRONDONkey]

Do me a favor and search for people with issues on GSP turbos, then search for ISIS.

godspeed is sourced to JMT turbos, they have an office in cali, IN, and the netherlands.
they do a good job marketing their processes with the development of their turbos, when it comes to manufacturing and balancing.

[G5SR20240]

Lol some of you crack me up, just buy what you want with the money YOU'VE earned. Life is never perfect and shit will happen. People feel that everyone is going to lose their minds if they don't make the absolute perfect decision right then and there. There are plenty of ways to approach people about what they should and shouldn't buy. Most that are quick to jump to a rash answer are the ones that never have worked in the car industry with consumers. There are ways to get the info to the end consumer without bashing them and making yourselves feel like nissan master techs or aftermarket part no it alls. Simple questions, easy answer. Try it out yourself and see

[Bmxer300zx]

Haven't heard any problems like what your friend had when ppl used the proper lines that enjuku recommends when you buy the turbo. Did your friend use his lines that were previously there or did he use the recommended lines?

He bought the "kit" the entire rs3871 kit. Had all lines, piping, manifold and fittings was over a 1k. He could have bought a legit turbo for that much. My point is if your looking at "the kit" just buy a legit turbo.
Far as if you want more power for cheap then Buy this turbo only not the kit. Doesn't matter cause you're probably tuning off a SAFC to save money as well.

[bmxer882x]

well, im thinking i may end up going with the isis, a few final questions
all i should need is the lines, couplers, and turbo? I have a s13 redtop.
Im using the stock intake, should buy the isis intake also?
I have a megan turbo elbow, it will still mate up to that just fine as well right?
Sorry for the noob questions just without seeing it first hand and not finding many pictures its hard for me to visualize what i need.
Also going to swap to e85 with 1000cc injectors, z32 maf, and a rs enthalpy tune.
swap will be done on the week of july 14th, ill be sure to give some feedback and dyno numbers when i get on one.
Thanks for all your guys's help!

[ultimateirving]

Everything looks good BMXer882, I would buy the lines, and intake, You can use the megan elbow as i have one too. Make sure the mating surfaces are level, my megan elbow was kinda uneven so i doubled up on gaskets. The couplers you buy can be cheapies, but i HIGHLY recommend buy the triple layer silicone couplers they last forever and really are worth the extra cash, Especially if your upgrading the turbo, Id replace all the couplers if any of them are the cheap material. Triple ply ftw.
Lastly do not buy a manifold, the stock log manifold is the perfect for power under 400.
And after the tune, make sure your easy on that trans. its next to go.

[El 3men2]

my isis turbo died with under 500 miles, s15 turbo on my motor now. case closed

[Corbic]

The last three posts are right on... my choice would be the t28 (S15) turbo fresh from courtesy nissan for 750, some 550 injectors, a z32 maf, a Walbro fuel pump, FMIC, and 3 inch exhaust, ROM ECU, and a tune, and leave it alone.. you'll have more power than you can handle.

So you don't actually run this setup... so your basis for this is... what?

[Corbic]

He bought the "kit" the entire rs3871 kit. Had all lines, piping, manifold and fittings was over a 1k. He could have bought a legit turbo for that much. My point is if your looking at "the kit" just buy a legit turbo.
Far as if you want more power for cheap then Buy this turbo only not the kit. Doesn't matter cause you're probably tuning off a SAFC to save money as well.

A "legit turbo" is still going to need those "kit parts". Elbows, lines, manifold, ect.

[JohnnyDrfiter22]

Im running the ISIS turbo and it spools extremely fast, powerband is awesome!! I have a PBM midmount IC, SARD 550CC injectors, AEM V2 and made 308whp. Everyone that has driven my car has said its fast, turbo response is awesome. I only drift my car so it probably has <50 miles on the new setup which was installed in april. Great bang or your buck IMO

[negrosx13]

Why the hell would u use there gaskets? Go spend little sum money since u just saved money on your kit eith oem gaskets. I'm not knocking cause planning on buying the rs3871 but put together my own kit. Honestly I feel the godspeed turbos are cheaper quality than Isis.

[Tedskiii]

I'm running one on mine, so far so good. I daily my car at stock boost/tune with this turbo. The reason I picked it up was because ISIS hooked me up with a super good deal for only 3 bills because my T25 replacement blew on me.

[04srt21]

I've had almost every product besides maby 3-4 of there products made for a s13/sr20 no problems with any of them Isis steped there shit up from what they used to be half the parts are even engraved or have logos on them now. Let's not forget buddy club and tein were once an equalivant to Isis parts. I ran rs3871 on 18-20 lbs all day had no problems for over 4k miles.

[TheRealSy90]

That's really not very many miles lol.

[04srt21]

Nah Ur right it's not i traded the car like a ass. But some people strictly drift and won't put that many miles on crusing around a track for a day once a month or so. People tend to install turbos and go right out and trash on there car. I babied mine for about 200 miles mostly low to mid rpm range befor I hit full boost in multiple gears seamed to help or could be in my head