PSR to Sullivan???

[Mr Patience]

Hey all, looking for a little info from anyone who may have experience with a combo similar to mine. I wondering if anyone has switched from a modified 99-01 intake (ported short runner) to a Sullivan and seen any gains at the track.

Pretty straight forward build....Car made 632rwhp/537tq (Tuned by Pete at Performance Dyno in NH).

- 4.6L Aluminator 8.5:1 crate engine (untouched)
- F1A Cog drive Procharger
- Glenns return fuel system (A1000 pump, Fore rails, 80lb injectors)
- PA C4 trans with a Frank Lupo custom converter
- Built 8.8 (Strange spool, 33 spline, 3.90's)
- 275/60/15 MT DR's

I've only been pulling the car out to 6800 - 7000 (dyno curve stayed pretty flat from 6000 - 6800) which so far has given me a best 1/8 mph of 114 and 1/4 mph of 144 with a 9.51 ET. So at that RPM range would it even make a difference changing to the Sullivan set up?

 

[encasedmetal]

you're gonna lose low end with the sullivan, but if you keep the revs up I think you'll like the results, may want to test how high you can leave at. I'm sure you know that if the curve is flat from 6-6800 rpm it's the intake and cams that are holding you back.

 

[Mr Patience]

The converter flashes right around 5700+, so it really never runs below that.

 

[encasedmetal]

I think the sullivan would be great for you then