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#8: 03-30-2012, 07:44 AM
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Title: Burning Monkey
Rank: Donating Member
Location: 5414' Colorado
Car: '07 SC Shelby GT 11.58 @121.2 5900' alt
Posts: 3,370
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Originally Posted by SSpeed View Post
I considered an FP HTA68, but Legend only made 60 more hp on e85 than I did on 91 (my new number is 271hp). Considering I could probably get close to 300hp on e85, jumping to an HTA68 would only get me about 30hp, not worth the expense.

Not 60whp, but 72whp. I agree you'd be in the 290's, possibly 300whp with E85 on your BNR16G. So the move to the BNR68 would get you right around 40whp. Still, probably not enough of a jump to warrant all the trouble.

Look up tommypenguin's old thread... He had an FP Green, at altitude, and never loved it. He ended up downsizing turbos, I believe. I'd be cautious of going that route.

I posted my new #1 favorite dyno sheet ever from that '07 WRX dyno'd last month. Over 3100rpms of continuous tq/whp > 360... That guy's damn turbo spools a lot faster than my BNR68 and makes >40whp more peak. Makes me look really bad. Simple out-of-the-box FPHTA68 with 2.4" inlet. Possibly capable of 11's at Bandimere (mid 11's at sea level). Personally I would try to replicate his setup. You'd gain over 100whp up top and at no point in the powerband make less than what you are making now.

His full mods and dyno sheet:

Samco turbo inlet
Grimmspeed 3port Boost Control
Grimmspeed intake manifold
Grimmspeed TGV deletes
Grimmspeed throttle body
Grimmspeed 8mm Phenolic Spacers
Grimmspeed EWG up pipe
Grimmspeed high flow cross pipe
Grimmspeed headers
ATP fuel rail kit
Tail 38mm V-band wastegate
Cobb lighten crank pulley
Cobb MAF Hose
Cobb cold air box
Cobb SF intake
Cobb accessport V2
Perrin catch can
NKG one step colder spark plugs
FP turbo oil line
Deatschwerks 1000cc injectors
Deatschwerks 300LPH fuel pump
Tuned by the BoostCreepLTD to 388whp 411wtq(E85)