So im trying to see how much boost I can run on a 1200 blower on 91 octane? It is my DD so Im trying to stay on 91 but want to get to 400whp.

Just got off the phone with Denis at Evasive and he said 7 or 8 psi is the max I can run on a stock motor... I tried to inform him a f22 can handle much more then 8psi but he believes thats not true. I was unable to talk to the actual tuner, he said he doesnt like to talk on the phone!

 

I would think on pump gas 11psi+ should be fine. I got my turbo s2000 tuned at Sean church and be tuned my car to about 13-14psi on straight 91 octane on the stock f20c.

 

There are lots of people on here around that boost level... thats why I dont understand why Evasive would just throw out a random number like that. Im limited by 91 octane correct??? They said No.. Im limited because "thats all the S2000 can handle"

 

The stock engine can handle 700+whp at what ever boost it takes to get there as long your have the fuel setup that can support it.

The biggest limiting thing for us when making power is 91 octane.

 

indi00 was @ 17psi (91 octane) before making the switch to E85

 

Its too bad when reps that work for these performance companies and solicit work, are 10 years behind the curve on this car.

 

Its too bad when reps that work for these performance companies and solicit work, are 10 years behind the curve on this car.
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This. You should've asked to speak with someone that actually knows s2000s. I'm sure they have some knowledgeable employees there!

 

Its too bad when reps that work for these performance companies and solicit work, are 10 years behind the curve on this car.
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This. You should've asked to speak with someone that actually knows s2000s. I'm sure they have some knowledgeable employees there!
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Right... I asked to speak to their tuner and he said he doesnt like to talk on the phone and was busy working.

 

Iv heard 3.8in or 3.6in is my max.
Do you know what size that was.... any problems at that level on 91?

 

I don't know much about super chargers but for turbos it's all about having a free flowing efficient setup. When I was first turboed I had a log manifold and a small garrett 50 trim turbo. I was only able to boost 9psi on 91 octane and I made 335 whp. I then upgraded to the track forged tubular manifold and I was able to boost 11 psi and I made 390whp. They I upgraded the small 50 trim turbo to a garrett gtx3576r and I was able to boost 14 psi safely and make 442whp on 91 octane.