300 HORSEPOWER?

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
clutch Kick drifter
Posts: 150
Joined: Wed Jun 15, 2005 2:34 pm
Car: 1992 Nissan 240sx/ Blacktop SR20det

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I priced together a kit for 300 HP with S15 turbo, 550cc injectors, Z32 maf, and rom tune for about $1750.00.


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Dori Dori
Posts: 2250
Joined: Fri Nov 15, 2002 4:46 am
Car: Cars of course

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Nismo_Freak wrote:This is from a guy with a larger T28:

Ok, i got my test pipe on and did 4 runs at the dyno today. My s-afc read that i didnt go above 80% airflow with my maf, and i tuned for about 11psi. I tuned the s-afc so that My air fuel goes inbetween 11.5 and 12. I made 252whp, and 229torque.

Horsepower can be gained from other sources than just compressor side airflow. It is possible to make ~270whp with a larger hotside on the turbo. It's all about engine VE.
Cool. Maybe 270 is possible on a stock maf...never seen it happen and doubt I will, but maybe you're right.

TURBOHHH
Posts: 32
Joined: Wed Feb 08, 2006 9:21 am
Car: 1993 240SX

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Nismo_Freak wrote:
This is from a guy with a larger T28:

Ok, i got my test pipe on and did 4 runs at the dyno today. My s-afc read that i didnt go above 80% airflow with my maf, and i tuned for about 11psi. I tuned the s-afc so that My air fuel goes inbetween 11.5 and 12. I made 252whp, and 229torque.

Horsepower can be gained from other sources than just compressor side airflow. It is possible to make ~270whp with a larger hotside on the turbo. It's all about engine VE.
what mods do you have? i have my t25 set at about 14 psi. and i havent been to the dyno yet either. now i dont have a safc 2 though so.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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Dori Dori wrote:Cool. Maybe 270 is possible on a stock maf...never seen it happen and doubt I will, but maybe you're right.
I've seen high 260's and I swear I've seen a dyno around the 273 mark. I know the MAF and injectors are tapped out at that point, but as I've said before there is more than one way for the engine to produce power. Sometimes you can get some relatively "free" power in places you least think about.

Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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TURBOHHH wrote:what mods do you have? i have my t25 set at about 14 psi. and i havent been to the dyno yet either. now i dont have a safc 2 though so.
Thats not me. As I stated above that it was some other guy.


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