What Turbo to upgrade to? (2.5 using 91 octane)
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From: IG - @thomas.teammoist
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So I have a friend with a mostly stock STi wanting to upgrade his vf39.
His end goal is 300-315 whp (its his daily driver as well).
He already knows he will need turbo, fuel pump, injectors and a tune.
DOES NOT WANT run meth or E85.
There are lots of threads about this but using 93 octane or E85, couldnt really find any set ups using 91.
Cliff note:
So whats the best 91 octane turbo upgrade on a daily driver to reach 300-315 whp?
His end goal is 300-315 whp (its his daily driver as well).
He already knows he will need turbo, fuel pump, injectors and a tune.
DOES NOT WANT run meth or E85.
There are lots of threads about this but using 93 octane or E85, couldnt really find any set ups using 91.
Cliff note:
So whats the best 91 octane turbo upgrade on a daily driver to reach 300-315 whp?
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From: SJ
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dom 2 if you have the money or want the brand name
IMO the 8cm Green should be good on 91 with the proper supporting mods
I made 316 on GST on Mike's tune
IMO the 8cm Green should be good on 91 with the proper supporting mods
I made 316 on GST on Mike's tune
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From: TRACY
Car Info: 07 STi EQ tuned / 08 LEGACY
why does he want to change the turbo, i have seen many people with the right supporting mods and a badass tuner like ed@EQTUNING produce similiar numbers safely, damn I dont have to much done to my car and i still made 315 hp and 335 trq with my stock turbo on 91 oct. no upgraded injectors or fuel pump, or headers, jus had ed@eqtuning work his magic!!
why does he want to change the turbo, i have seen many people with the right supporting mods and a badass tuner like ed@EQTUNING produce similiar numbers safely, damn I dont have to much done to my car and i still made 315 hp and 335 trq with my stock turbo on 91 oct. no upgraded injectors or fuel pump, or headers, jus had ed@eqtuning work his magic!!
What mods do you have?
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From: IG - @thomas.teammoist
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why does he want to change the turbo, i have seen many people with the right supporting mods and a badass tuner like ed@EQTUNING produce similiar numbers safely, damn I dont have to much done to my car and i still made 315 hp and 335 trq with my stock turbo on 91 oct. no upgraded injectors or fuel pump, or headers, jus had ed@eqtuning work his magic!!
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I had TD06 20G 8cm with supporting mods (drop in filter, turbo inlet, injectors, pump, Spearco TMIC, turbo back) making a safe 310whp/310wtq (GST's mustang dyno) on 91 octane at 20 psi tapering down to 18 toward redline. This was on a 2006 WRX TR.
uuummm 315/335 wheel or crank horse power?
why does he want to change the turbo, i have seen many people with the right supporting mods and a badass tuner like ed@EQTUNING produce similiar numbers safely, damn I dont have to much done to my car and i still made 315 hp and 335 trq with my stock turbo on 91 oct. no upgraded injectors or fuel pump, or headers, jus had ed@eqtuning work his magic!!
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From: IG - @thomas.teammoist
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Ya those numbers seem high to be whp with what all he listed being stock
How was it for a daily driver?
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From: TRACY
Car Info: 07 STi EQ tuned / 08 LEGACY


