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biggest turbo for 650's?

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turboedspyder

15+ Year Contributor
103
1
Feb 28, 2007
Shillington, Pennsylvania
im just wondering what whould be the best turbo to run a decent amount of boost with 650's. my bigt28 isnt really doing it for me anymore. LOL and i dont want to get and bigger injectors because i dont have the money for dsmlink. 350whp is what im lookin for, but if i can get more that would be nice. thanks alot
 
I agree the 50 trim or the fp18g would be good, at least with the 18g you would have fast spool up and good top end power
 
A buddy of mine ran 22psi with a Frank Level 5 20G (60 trim Garrett compressor, TD06H turbine) on his 2G for a while before upgrading to larger injectors when he bought DSMLink. I'd say 22psi was about the limit of that setup.....that turbo was thirsty for more fuel with more boost.
 
yea i was lookin at the fp18g since i should be able to run a decent amount of boost with the 650's. i dont think i will be able to to run as many psi with a 50trim without maxing out my injectors. is there really that big of a difference between the fp18g and an evo316g?
 
A buddy of mine ran 22psi with a Frank Level 5 20G (60 trim Garrett compressor, TD06H turbine) on his 2G for a while before upgrading to larger injectors when he bought DSMLink. I'd say 22psi was about the limit of that setup.....that turbo was thirsty for more fuel with more boost.

My friend actually runs his FpRed at 22psi on 650cc as well. I'm sure he's at his limits as well.
 
I've been running the FP18G with 650's for about a year and a half now and I have to say it's a well-matched combination. Under WOT the injectors see about 75% IDC. This turbo has good spool up characteristics, will support 400 hp, and doesn't run out of steam on the top end.
 
Although it def can be ran, I'd say pushing alot of boost out of any of those turbos with 650's is going to be rough. Def. log your IDC's if you choose to go that route. With my PTE 680's I ran 85% IDC on only 11-12 psi on a 50 trim. My tune is slightly rich but not horribly rich, why not throw on a EvoIII and pull big power out of it if your goals would be the 350 whp range and not worry about injector size. Also if you dont plan on getting link (cant afford it, dont like it, etc.) look into the Evo 8 ecu like I'm running with evoscan logger, great setup and cost only the amount of the evo ecu.
 
I have the new 18G6SL2. I was running 24 psi on 650s and hitting 90% IDC with ~11.3:1 AFR and 43psi base fuel pressure. Anything below 20 psi and my 14b ran similar 70-90 mph times, but 22-24 is where it sings. I am trying to get 28 out of it now, but the damn int WG sucks for that.
 
I used to have the evo III with pte 660cc's at 22psi with 80 something idc"s "it's been a while i dont remember the exact #'s " but with a evoIII you'll be able to make the #'s your looking for with a good tune. I honestly think anything larger you'll run into problems. especially with out something like dsmlink
 
just read thru your profile, which i should ave done first but anyways. I realized you still have a fmic listed in your wishlist. I would have to say in my opinion with any of the turbos mentioned your going to have a hard time reaching those #'s with out a fmic
 
yeah ill be gettin a fmic before i upgrade to and turbo. and i plan on doin cams the same time as the turbo. im not sure about the e316g though ### im ###### gonna want alittle more. ive ridden in a few beofre and yeah theyre nice, but i would just like mine a little bit faster. ill look into the fpgreen. but right now in still thinkin fp18g would be the best
 
Being in an EvoIII car and being in an EvoIII car with 350whp are two diff. things. 350 out of a 50 trim is the same as 350 out of a E3, just it has slightly better spool.
 
would i be able to pull off 350whp dayly with cams and a good tune? and not have any problems with anything breaking constantly?
 
Absolutely, there are people making above your 350whp goal with EvoIII turbos although they are rare which usually just has to do with tuning. With the proper bolt ons and cams you can certainly hit 350 plus they are easily found, decently priced, and reliable...just make sure you get MHI or from a reputable shop (FP, SBR, etc i.e NOT EBAY).
 
If I felt like spending a few hundred more, I think I could break 450 with my 16G powered car. I switched to more conservative timing numbers before the dyno shown in my profile to limp along a dying head gasket (after an overheat from breaking a hose). If I do much more though, I'll probably just move to a Holset HX35; I think it would probably be easier on the drivetrain anyways.
 
If I felt like spending a few hundred more, I think I could break 450 with my 16G powered car. I switched to more conservative timing numbers before the dyno shown in my profile to limp along a dying head gasket (after an overheat from breaking a hose). If I do much more though, I'll probably just move to a Holset HX35; I think it would probably be easier on the drivetrain anyways.

when i switched up to the hx35 from the evoIII one of the first things i noticed was that the turbo came on slower " higher in rpms" which definatly helped me "fwd" with taction. also it comes on much smoother than the evo imo. so i would definatly think it going to be a bit easer on the tranny. that evoIII used to hit hard !!
 
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