Vora

I am wanting to run 12 seconds in the 1/4 mile in my 1991 Honda Civic with a B16a (SIR-V) swap. I will be using as a daily and 93 octane. My idea would be a turbo build using the hunter or silver surfer from speedtrap, or maybe a precision 5842. My budget is about 5k and my ideal HP is 400 to 550 (Turbos are rated for that or lower.) I am not wanting lag and if I do have some it's ok just don't want a ton.

hondaracing84

iTrader: (1)

400-500hp is more than needed for 12 second passes. You only need about 270-300hp for mid 12 second passes. You just need the most simple turbo setup. You can just go with a small framed turbo and a ram horn style manifold. Garrett T3/T4 57 Trim. That turbo can support up to 475hp. So you can make your 300hp and have room to grow. Plus its a t3 and not too big where you have bad spool.

Chance EG

I agree with most of this, you don't need 400->550 HP for a 12 second pass, not anywhere close. We have all motor B series with about 240WHP that are running low 12's on street tires, high 11's on slicks.

I'd recommend a smaller turbo, if ordering from STC then consider their GT2871 package. 56 trim, will easily make the power needed to run 12s or lower.

I also wouldn't necessarily recommend a ram horn, and since you mentioned your car is a daily I'm not sure if you're keeping AC. If you are, then I'd recommend either a a cast manifold or a mini-ram style manifold, the full ram horn takes up more space in the bay, and creates more of a heat pocket underneath it's runners. A cast manifold, or especially a mini ram would offer plenty of flow for ~400WHP.

Vora

Thanks for the feedback and I will be running 306 HP (I had to run the Type-R HP lol) till I sleeve my engine and put a few things on. We have a manifold and we are trying to get top notch for daily driving. Just trying to have my weekend fun.

Vora

Thanks for that info, I am looking at the GTX3071 and GTX3076. Hope this works out great and that I get to my goal.

hondaracing84

iTrader: (1)

I agree, a ram horn is not required. You can certainly make 300hp on a cast or mini-ram. But the reason I said a ram-horn is because it makes power more efficiently than a cast or mini-ram style. Full-Race did a back to back test of a log style manifold (which essentially you're getting with a cast) vs their ram horn. It picked up more power at the same boost level. Its just more efficient. If a/c is wanted, there are ram horn manifolds that retain a/c. Also, if you're wanting to make more power later down the line, you'll already have a good manifold to do it and not do what I did, have to re-do a major part of you're turbo setup just because the cast manifold will not make the power.

nsxmatt

I ran in the 11's in a 92 hatch with a 57 trim with only 250whp. Like was said before if you want a quicker spooling daily driveable turbo a 57 trim t3/t4 will be cheap and plenty for your goals.