89hatchman

I have a red top SR20DET that I'm hoping to get 300-350 whp out of without having to change up the bottom end and I have a few questions.

First has to do with my turbo. I would really like to keep the stock bottom mount style turbo manifold and use my existing megan elbow, so that leaves me with the T25 or T28 correct? I have heard good things about the ball bearing T28 but its a little out of my budget and perhaps a little more finicky with oil pressure. Not to mention it's difficulty to rebuild.

I'm looking at using Injector Dynamics 1000cc injectors and a circuit sport top mount fuel rail. Does it matter if the opening is 11 or 14? Or will it be a max of 1000cc of flow either way?

Looking at getting a MAP ecu set up since the tuner that everyone in my area suggests, suggests that method of tuning. Megasquirt works well?

Would rocker arm stoppers and ARP head studs be suggested as insurance? I'm taking my head off anyways to do a head gasket anyways. The stock head bolts are torque to yield right?

Any manual boost controllers you would suggest?

Would that be about it? I'm looking at spending around 2 to 2.5k on this whole thing. Doable?

I currently have an ebay front mount intercooler set up and a clutch good for 400 whp

Dboyizmlg

OMG......

You are in for a lot of trouble kid!

e1_griego

Just go read the 2871 thread.

MADE

My Friend was pretty much in the same boat as you months ago, so I'll tell you what I recommended, what he tried to do and what he ended doing. IIRC he made 385ps on a dynapak

What is your budget? I recommended him the GTX2867 or the GT2871. cheap ebay turbo's work as well but I wouldn't go that route but whatever is in your price range do it.

I recommended Nismo 740cc or similar , he went with your suggestion with a GSP mani, lots on money wasted as it didn't fit. Hood wouldn't close, other parts wouldn't line up etc. 740cc were used.

No idea about megasquirt but he went with the MAP version of the PFC, If you're limited to tuners I'd get what they suggest or if you have the money get what you want and take the ECU to someone out of the area with the knowledge to tune it.(I say this cause tuning will be the hardest part, if the tuner is crap or isn't comfortable with the standalone your outcome will be less the optimal.

I'd stick with a stock gasket, if it's good. He went with the Cometic IIRC and poncams, I'm running a GTX2867R/EWG on stock HG and cams

I prefer Blitz SBC ID, whatever EBC works for you.

Would that be about it? I'm looking at spending around 2 to 2.5k on this whole thing. Doable?

What Fuel pump do you have?


There is a 100 ways the skin this cat, but I will say talk to the mech/tuner, see what he recommends and do some research to make sure he is not up selling you. Any respectable shop should have a cost effective recommendation for the customers and best way IMO. My personal friend owns a shop in the local area, where he works on circuit cars for race teams, R&D for a major car company and regular enthusiast. He works with all to get them what they need.

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89hatchman

Walboro 255, got that taken care of. Also looking at running E85 just because it's cheaper, higher octane, and runs cooler than gas.

fliprayzin240sx

The more this guy post...the more I smell troll...

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Fuego

255 fuel pump, 550 injectors, gt28, z32 maf, rom tune.

It's been done 1000 times and yes your budget will suffice.

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Mikester

^^Ding ding ding!^^

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hartig

1000cc injectors on a t25 or t28? smart..


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VegasDrifterS13

Im surprised there arent too many folks Roasting this thread.

First of All. Go S15 T28, theyre cheap, reliable, and Made to work well with your SR cuz NISSAN DESIGNED IT THAT WAY. THROW IN some 550cc Injectors, get an electronic Boost controller, z32 MAF, & a Nistune on Your ECU. Get her tuned from 14.6psi to 16psi somewhere where shes not knocking and Baaam. Reliable 300-340hp at the ground.

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di-devol

^You're thinking of a 2871 for about 340 at 14-16 psi. I don't see even a s15 t28 making that much over 300.

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VegasDrifterS13

Mine makes 326hp & 268ftlbs @ 16psi. I have an S15 T28, Sard 550's, z32 maf, Apexi Avcr Boost controller, trust 3" elbow & downpipe, & a Redline Efi Rom tune

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di-devol

That's my point, not much over 300 :P

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VegasDrifterS13

Lol. Well his goal is right there. 300-350. Im smack dab in the middle. :beer:

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ultimateirving

Yea I put down 298 with e85 t28 And 850s

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kilamax03

hmm this should be interesting... im looking to make around the same amount as well.. guess im gonna have to start looking into another turbo.. not to troll this doods thread but what is the best turbo to get equal torque and HP?

Mikester

None.

msglngth

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whereda40at

http://zilvia.net/f/chat/351870-1-4-...93-octane.html

Do this....Just don't build the motor, do arp head studs, don't do r a s, do the drive train if you can. Enough said.
380hp 385tq on a mustang dyno...440ish hp on a dyno jet. Looks stock and won't break the bank.

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Fuego

All of them. At 5252 rpm

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VegasDrifterS13

Lmao^^^

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Mikester

^^HAHAHAHA I love this guy!

(no homo)

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WS93

Pretty much sums it up.

Danger_Dorn

I'm kind of going to thread jack here... I have a few things like 444cc injectors from a gtir, a holset 351, and rb25 maf. I have a (noob mistake) 1.8mm cosworth headgasket, fmic, healthy rebuilt motor with 6k miles on it. I want 300 whp or something around there? What are my options? I'm trying to keep expenses down and deal with what i have.

444cc, rb25maf, t28 or slightly bigger turbo, enthalpy or nistune ecu

Kingtal0n

your power comes from your compressor. You want 300whp you need a compressor that can flow 34lb/min, give or take depending on your fuel and how hard you push it.

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rob_240

why dump 2k to 2500 into a sr and not consider spending that money on the bottom end first??

Kingtal0n

1. I've take it you've never built a bottom end
2. If you have, I take it you've never put 50,000 miles on that bottom end

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rob_240

Lol sure thing bud dont be making judgement on people u dont know

Fuego

Because it's overkill...

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rob_240

I guess depends what your gonna use it for and if you plan on keeping it. What good is all those other parts when u spin a bearing?

Danger_Dorn

Well its my dd/toy and I like to best the piss out of it

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