Anyone try tomei turbos yet ?

[eklips3]

Im looking into getting one of the new tomei turbos that they offer for sr20 now.

i noticed that they have a journal bearing center section. i know ball bearing will always be better then journal bearing but tomei had had to engineer their journal bearings to be just as good as ball bearing.

anyways, anybody try these turbos yet ?

[BradGriffith1]

Me too. I'm interested in the comments. What people spool at and what psi.

[REVGASM]

i plan on switching from Power Enterprise pei1420 to Tomei Arms, i'm also interested on anyones feed back

http://zilvia.net/f/forced-induction/333514-tomei-arms-turbo-upgrades-sr20det-mvp-motorsports.html

[Mirage]

Tried to, I was even scheduled to re-tune on the dyno this past monday morning..., but now I have a 2 hour deposit down on dyno time that I'm not able to use.

http://img827.imageshack.us/img827/103/brokenturbo.jpg

Was trying to set the boost saturday, kept playing with boost and duty cycle numbers on the PowerFC boost control, and couldn't get it to quit overshooting the .8 kg/cm2 that is listed in the manual as the "factory preset" for the actuator. Started getting laggy and erratic boost numbers, and when I went to check the actuator (was going to loosen it up some) it was wobbly at the exhaust housing, and when disconnected the arm was able to spin a complete 360*. I'm still waiting to hear back from Tomei about the warranty claim, but i'll just say it was a pain in the ass to even get them to send me that. I had about a 1/2 tank of gas through it, and most of it was driving to and from work a couple days off boost to make sure I had no leaks and everything was running good.

It seemed to spool pretty good though, and its a pretty nice kit, the oil and waterlines fit just perfect.

[Black240Ct]

^^ i wonder how that happened..

was the actuator putting too much pressure on it when closing or holding it against something while opening..

what turbo elbow were you running



i have been waiting for some zilvia reviews on this turbo.
hopefully order one this winter

[Mirage]

Tomei elbow (and manifold). I would think it would take some serious pressure to actually break that piece like that in such an extremely short period of time that it took me to attempt to set the boost. Installation Manual said it was set at .8 kg/cm2 from the factory so that is what I was attempting to set it to, I didn't want it too high until it was on the dyno/wideband.

I've seen mitsubishi's lose a flapper disc from a rivet going out, but i've never seen a shaft break like this before.

[Black240Ct]

yeah thats wild

i was thinking you may have a greddy one and that plate they put in it was hitting the flapper

[anotherblusi]

I've seen this happen on garrett turbos as well. The real question is if tomei will warranty it. I know garrett has in the past...

[eklips3]

uh-oh.
i have the greddy turbo elbow.
i hope that the turbo elbow is not actually the problem with the wastegate flap.

[97240TB]

I'd assume you guys should just buy the tomei elbow when you purchase this kit....

[s15specR]

Basically a Garrett turbo built to tomei specs, on the broken arm, make sure your actuator isnt putting too much pressure on the arm, too much pressure plus all that heat will affect the metal.

[Mirage]

Except the specs are almost dead on for a td06-20g for the M7960...Its not a B series ARMS.

I doubt the elbow/s have anything to do with it, i'm sure a company like Tomei would have tested a few different ones.

[Black240Ct]

yeah just brain storming with the elbow.. i know the tomei one doesnt have the diffuser plate in it.

[slider2828]

I have had a greddy turbo elbow on my garret 2871R, for like 4 years now? I track and dd my car... never had a problem... For sure it has a diffuser plate, so I doubt the elbow is the culprit...

[Om1kron]

lol flapper broke buying brand name elbow should solve problem...

GODAMN zilvia did all of the members of nico register here or something, if the flapper on the turbo broke it's a shitty piece on an expensive turbo. I mean any local turbo shop should be able to fix this in a jiff.

Fuck trying to get Tomei to make it right, that will take forever since they're overseas and most likely do not manufacture these in house..

[Z33dori]

id really like to see how these stack up to the Greddy/ Trust 18g and 20gs. These seem to be similar target hp levels for those turbo, both of which are journal bearing. Lots of guys are running them over in Japan, and love how quick the spool is for the power they can put down. It would be a real treat to see how they would pare up, then do a split and compare them with 2860 and the 2871/6.

[!Zar!]

I wonder how closely related this is to that godspeed td05 18g turbo...

[Martino]

Interested in the comparison charts. The kits pretty cheap for literally everything you need to throw it on an SR.

[CashSR]

Unfortunately the seem pretty disappointing. Minimal power gains if any.

There are a couple of sets of ARMS doing the rounds of our town at the moment, popping up to get tuned on a new car every few months before being offloaded again due to being so unimpressive. These are Evo and WRX spec units, I am yet to see one on an SR20 but based on these results I wouldnt expect anything earth shattering. We even had an R34 with complete Tomei crate motor and ARMS twins, making less power than a standard one with N1 turbos.

Just my impression of them, personally I'd give them a miss. GT-RS would be a better option.

[tricky_ab]

lol flapper broke buying brand name elbow should solve problem...

GODAMN zilvia did all of the members of nico register here or something, if the flapper on the turbo broke it's a shitty piece on an expensive turbo. I mean any local turbo shop should be able to fix this in a jiff.

Fuck trying to get Tomei to make it right, that will take forever since they're overseas and most likely do not manufacture these in house..

I could have sworn that they do manufacture these in house. Anyways it's nice to hear some hands on feedback on these finally.

[MADE]

Wow an Aussie suggesting a HKS brand over s
omething else. Never sa
w that coming.

[slider2828]

GTRS ARE super good... I think they are the 3" openings 2871R...... With front and rear housings.... which I had money for them

[eklips3]

hmm interesting.

im iffy on garret turbos though , alot of them are hit and miss when it comes to quality apparently.

[GunmetalSR]

hmm interesting.

im iffy on garret turbos though , alot of them are hit and miss when it comes to quality apparently.

i like hks turbos to be honest and i havnt looked at specs but i like the gt2530 and i think its alot like the garret gt28rs

[CashSR]

Wow an Aussie suggesting a HKS brand over s
omething else. Never sa
w that coming.

Apologies for providing ACTUAL feedback. However, feel free to ignore me and purchase an ARMS instead

[MADE]

Inside joke man, nothing personal, haha Im interested in the data as well, and im going to buy a 2835 for my RB.

[drifter_for_life06]

i think im gonna snag up a new M series in the next month or so and see what happens

[ripnbst]

As it was already mentioned the Evo and WRX guys have been trying these with disappointing results for quite some time.

[Z33dori]

As it was already mentioned the Evo and WRX guys have been trying these with disappointing results for quite some time.

ya i noticed after some searching these turbos have been out since 08 ... lol

seems better off to just get Greddy or FP 20g

[tricky_ab]

ya i noticed after some searching these turbos have been out since 08 ... lol

seems better off to just get Greddy or FP 20g

Yeah, oh well I had high hopes. I've been reading up on these kits for EVO's but I didn't find anything yet on SR20's.

[Def]

ya i noticed after some searching these turbos have been out since 08 ... lol

seems better off to just get Greddy or FP 20g

GReddy turbos are just overpriced Mitsu crap - no thanks. A FP 20G - what a dogshit POS turbo for an SR.


A bunch of people who know nothing about sizing turbos ITT.


A GT2871R 52 trim is *EXACTLY* like an S14/S15 T28 on the outside, and it will outperform every single turbo listed in this thread. That's what an HKS GTRS is BTW, not the 56 trim 2871R with a a 3" inlet T04B compressor housing.

[Z33dori]

GReddy turbos are just overpriced Mitsu crap - no thanks. A FP 20G - what a dogshit POS turbo for an SR.


A bunch of people who know nothing about sizing turbos ITT.


A GT2871R 52 trim is *EXACTLY* like an S14/S15 T28 on the outside, and it will outperform every single turbo listed in this thread. That's what an HKS GTRS is BTW, not the 56 trim 2871R with a a 3" inlet T04B compressor housing.

so explain why so ppl run the 20gs and make great power with them, they may not be as responsive as 2860 but they are super laggy like a 3071r. Its also relative to how the motor is built. Anything over a 2860r is gonna lack response on a stock sr, all of them will need some more push at the top with stock cams, etc, etc, etc.....

I am by no means saying it superior but i think its wrong to just go out a call them junk. But its w/e opinions are just that.

[Corbic]

so explain why so ppl run the 20gs and make great power with them, they may not be as responsive as 2860 but they are super laggy like a 3071r. Its also relative to how the motor is built. Anything over a 2860r is gonna lack response on a stock sr, all of them will need some more push at the top with stock cams, etc, etc, etc.....

I am by no means saying it superior but i think its wrong to just go out a call them junk. But its w/e opinions are just that.

Exactly. It's not a "Bad" turbo, just a turbo that may not be right for your application.

"BAD" ones or ones that should be called "junk" are ones with premature part failures, quality issues or numbers being advertised that are not accurate.

[eklips3]

how about precision turbo's ?
are any of the precision turbos direct replacment for sr20 ?