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Old 10-21-2010, 08:37 PM   #1
TurboQueef
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Default Anyone daily driving a GT4088R twin scroll?

I am thinking about upgrading the turbo and would like to hear from anyone who has been using a twin scroll GT4088R (or GT4202R) as a summer time daily driver.

I pile on the miles and don't want stuff busting up and spoiling a trip.

I am looking for feedback from anyone who has first hand experience with this turbo. I am leaning towards the kit offered from Ultimate Racing but would like to hear any about any other options.

My specific questions:

* Which kit are you running?

* How many miles have you driven with this turbo installed?

* Some indication of spool ( XXpsi @ XX RPM)

* What power are you getting out of it? (pump, race & high level listing of your mods)

Thank you,

Jeff
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Old 10-22-2010, 03:30 AM   #2
cubuff
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I have daily driven my ej207 with a borg warner 300sx 91-79 this turbo fits in between the two listed. Larger than a 40r smaller than a 42r. Keep in mind that im on a 2ltr and I dont care about spool. But... with that said its awesome to drive and darn scary to drive in full boost which at this time for me is 28psi. This boost level got me 693whp on a dynojet on e85. I have full boost around 6700rpm and spin to 9000rpm.

However low end on 5-10psi is still tolerable. I have rarely found myself in a position where the lag is annoying. This size turbo isnt for someone that is used to a 20g with 400ftlbs at 3k because this turbo wont even come close to that low end power. But if you enjoy the highway and are able to wait that one time for boost to hit its totally worth it and far more enjoyable in my mind than my old FP Red setup.

Daily driving can be done but, you have to know and be able to deal with what you are getting yourself into. Unfortunately, as I have discovered a turbo this size very rarely gets bolted on without headaches that go along with it. So be ready for that also.

I am running a custom twinscroll kit with a full 4" exhaust. I havent driven very many miles but I have driven it a fair amount around town and having fun over the summer. Now it will sit and go under the knife again for some suspension work, weight reduction, cage, and some other engine goodies to hit 750whp.
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Old 10-22-2010, 08:18 AM   #3
iana
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Lag is only **** if it isn't worth the wait
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Old 10-22-2010, 06:50 PM   #4
TurboQueef
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Quote:
Originally Posted by cubuff View Post
I have daily driven my ej207 with a borg warner 300sx 91-79 this turbo fits in between the two listed. Larger than a 40r smaller than a 42r. Keep in mind that im on a 2ltr and I dont care about spool. But... with that said its awesome to drive and darn scary to drive in full boost which at this time for me is 28psi. This boost level got me 693whp on a dynojet on e85. I have full boost around 6700rpm and spin to 9000rpm.

However low end on 5-10psi is still tolerable. I have rarely found myself in a position where the lag is annoying. This size turbo isnt for someone that is used to a 20g with 400ftlbs at 3k because this turbo wont even come close to that low end power. But if you enjoy the highway and are able to wait that one time for boost to hit its totally worth it and far more enjoyable in my mind than my old FP Red setup.

Daily driving can be done but, you have to know and be able to deal with what you are getting yourself into. Unfortunately, as I have discovered a turbo this size very rarely gets bolted on without headaches that go along with it. So be ready for that also.

I am running a custom twinscroll kit with a full 4" exhaust. I havent driven very many miles but I have driven it a fair amount around town and having fun over the summer. Now it will sit and go under the knife again for some suspension work, weight reduction, cage, and some other engine goodies to hit 750whp.
Sounds good.. my main concern is how will the plumbing hold up (had issues with some of the stainless tubes fail at the welds after piling up the miles (20K plus)

Thanks for the reply... good luck with your build.
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Old 10-22-2010, 06:52 PM   #5
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Quote:
Originally Posted by iana View Post
Lag is only **** if it isn't worth the wait
Ha.. so true... lag is not my main concern but I would be a bit disappointed if it were worse than my FP RED 8cm (target by 4K or so in 4th gear pull)
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Old 10-22-2010, 07:04 PM   #6
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I will be daily driving a bolt on gt35r very soon. Lag is honestly overrated..just downshift / rev match and your in boost.
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Old 10-22-2010, 07:33 PM   #7
bugeye1257
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^^this! its only a downshift away...
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Old 10-22-2010, 08:13 PM   #8
cubuff
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Quote:
Originally Posted by TurboQueef View Post
Ha.. so true... lag is not my main concern but I would be a bit disappointed if it were worse than my FP RED 8cm (target by 4K or so in 4th gear pull)

Its going to be worse than your FP Red. No doubt about that. But, it will make a A LOT more power though. Honestly though you probably wont notice a whole lot of difference because the extra power will cloud your mind. If your thinking or dreaming of having 400ftlbs by 3500-4000rpm like I mentioned above this turbo isnt for you. It makes all of its power higher at higher RPM. The days of instant tq will be gone. But, if your even the slightest bit concerned about lag look at a smaller turbo.

What are you concerned with on welds? The materials will be no different than any other setup. I would look at Full Race's kit before Ultimate though. Cheaper and IMHO better quality.
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Old 10-22-2010, 10:06 PM   #9
kasra007
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Quote:
Originally Posted by bugeye1257 View Post
^^this! its only a downshift away...
Yup but it will take lots of practice. once its mastered.. its deadly
your in 5th @ 2500 rpm. downshift from 5 > 4 > 3 , WOT
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Old 10-23-2010, 06:03 AM   #10
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Quote:
Originally Posted by kasra007 View Post
Yup but it will take lots of practice. once its mastered.. its deadly
your in 5th @ 2500 rpm. downshift from 5 > 4 > 3 , WOT
Why even go to 4th. Double clutch shift to 3rd.
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Old 10-23-2010, 09:21 AM   #11
kasra007
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Quote:
Originally Posted by alcoolaid View Post
Why even go to 4th. Double clutch shift to 3rd.
double clutching takes too long, just clutch in, gas it , 5 > 3 , wot

its really worth learning downshfiting / rev matching, not only is it fun but very useful and handy. It has become a bad habbit also.. i downshift / rev match on a daily basis.

I don't get why so many people complain about lag, it has never bothered me. You also save gas by not going into boost.

Last edited by kasra007; 10-23-2010 at 09:28 AM.
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Old 10-23-2010, 12:14 PM   #12
TurboQueef
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Guys... lag is the least of my concern... I am looking for users who are daily driving a twin scroll set up and have some miles on it !!!
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Old 10-23-2010, 12:41 PM   #13
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3000 ish miles on a TS Borg Warner 83-75... Full-race turbo kit. No issues at all with the kit. It literally spooled faster than a 20g and made low 600s on pump and about 500 on 93 octane. Then the crank broke.
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Old 10-23-2010, 01:10 PM   #14
TurboQueef
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Quote:
Originally Posted by MartinSTi05 View Post
3000 ish miles on a TS Borg Warner 83-75... Full-race turbo kit. No issues at all with the kit. It literally spooled faster than a 20g and made low 600s on pump and about 500 on 93 octane. Then the crank broke.
Good deal on the turbo... what happened with the crank?
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Old 10-23-2010, 01:46 PM   #15
MartinSTi05
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Billet 83mm stroker crank. It snapped in two. Main fillet to rod fillet. They conked me a new one for free.... The material was way too hard and the fillets were too small.
http://forums.nasioc.com/forums/show....php?t=1984611
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Old 10-23-2010, 01:52 PM   #16
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damn u r reving up to 9? what build do u have?
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Old 10-23-2010, 01:54 PM   #17
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Mostly shifted 8-8250. 9 was not a common RPM for it. Although the bearings looked fantastic upon teardown, except for the ones on the broken journals, lol
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