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Okay boys i want to here what your running twins single what turbo boost dyno numbers and what all is done to the motor.. Lets here it boys...
 

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twin 57s, rr intake 23 psi and a little over 800rwhp.
 

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Im going to be running a single precision T70 GTQ at 16 psi and hoping to hit at least 550 rwhp. Ive got a built engine at 9.17:1 compression, patriot stage 2 heads, stock cams, bullitt manifold, Cobra tank,twin GT pumps, KB 40a BAP, modded FPDM, Spec stage 3 clutch, and switching to dynomax ultraflow straight thru mufflers.
 

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Single MP-70 bone stock motor, bullitt intake 412 rwhp @ 8lbs Tuner said we could got more but kept it safe.
 

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Single GT-42R, built aluminum block, fox lake heads, RR intake, 4R70W.

15lbs on a break in tune netted 556rwhp. Going back in 2 weeks to work on the tune now that i've got some miles on the motor. Hoping for 600rwhp on pump gas and 800rwhp with some race gas.
 

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Single Turbonetics T76-GTS (.81 exhaust A/R), stock PI intake, Stage 2 Patriot heads (back cut valves, shimmed Nextek springs), HiTech Motorsport custom turbo cams, '01 Cobra block half-filled w/hardblock, Mahle pistons (9.4:1 compression), Manley rods/ ARP 200 rod bolts, Cobra crank, ARP main/head studs.

On gasoline I only tuned it @ 8psi and it made 490/510 on a dynojet with about 17 deg's of timing. On E85 I had no tuning ability so timing was locked at 16 deg's and @ 9psi the A/F was 10.8:1 where it made 481hp/507tq, moved the boost to 10psi and it made 509hp/540tq at the same 16 deg's, finally we went to 11psi and it made 539hp/578tq, again at the same 16 deg's but A/F was up to 11.2:1 (still pretty safe!). That's an average of 29hp per lb of boost!

I'm adding an inline pump then I'm ultimately going to run 18 psi with two 60hp shots of nitrous, both will come on @ 3000 rpm's, with one of them shutting off at 16psi or so. I would think it should be close to 750hp/850tq.
 

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On my break in tune I made 575rwhp @ 12 lbs with na heads and turbo cams. I then bought a set of turbo heads and healthy cams but haven't been back. Unfortunately I'm installing a 4r70w tomorrow so when I go back my numbers won't be so great.

My kit is just a diy.
 

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stock long block with 63mm turbo at 10psi and 15 deg of timing
420/468 on a mustang dyno
 

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b&g turbo kit with a MP70 on making 387/456 through an automatic at 8psi with stock h/c/i.
 
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