ATI Questions
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ATI Questions Does anyone have the compressor maps for the P-1SC and D-1SC? Does anyone have a chassis dyno of a ATI kit on a BONE stock car? At what RPM does boost build and levels off? Trying to talk myself out of a turbo because ATI sounds like a true bolt-on power adder (besides nitrous, have that already, tired of having empty bottle)
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From: Raleigh, NC
Re: ATI Questions http://www.mlbuie.com/BlackLS1TA/dyno_296_hp.htm
Eighth-mile Times BEFORE Stall: 2.05 60', 8.75 E.T, 81.16 MPH
1/8th-mile Times AFTER Stall: 1.86 60', 8.47 E.T, 81.39 MPH
http://www.mlbuie.com/BlackLS1TA/dyno_486_hp.htm
Eighth & Quarter-mile times AFTER Golden West Performance Stage II ATI D-1SC at 10 PSI
(Bone stock, Headers/Y-pipe/Cats, SY3500, BFG DR's)
1.65 60'
1/8th 7.07 @ ET 99.49 MPH
1/4th 10.98 1/4 ET 125.83 1/4 MPH
Eighth-mile Times BEFORE Stall: 2.05 60', 8.75 E.T, 81.16 MPH
1/8th-mile Times AFTER Stall: 1.86 60', 8.47 E.T, 81.39 MPH
http://www.mlbuie.com/BlackLS1TA/dyno_486_hp.htm
Eighth & Quarter-mile times AFTER Golden West Performance Stage II ATI D-1SC at 10 PSI
(Bone stock, Headers/Y-pipe/Cats, SY3500, BFG DR's)
1.65 60'
1/8th 7.07 @ ET 99.49 MPH
1/4th 10.98 1/4 ET 125.83 1/4 MPH
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Joined: Nov 2001
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From: Raleigh, NC
Re: ATI Questions Someone on the Forums told me after running 10.98 at 126 MPH and increasing my RWHP by nearly 200 horsepower, they weren't too impressed. <img border="0" title="" alt="[Roll Eyes]" src="images/icons/rolleyes.gif" />
What do you think? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
What do you think? <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
Teching In
Joined: Nov 2001
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From: Crestwood, MO
Re: ATI Questions on that last dyno graph w/ the sc it looks like it started off lean <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> around 3.5krpm and then from 4.2k to 5.4k or so it went real rich. Then it went nice and level. Am I reading that right and if so did tuning take care of that? And if so what did you use to tune it? Would a MAFT work or would a custom program work betther with the S/C? Thanks, sorry if it's a dumb question I'm just trying to learn more about s/c ing. <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />
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From: Raleigh, NC
Re: ATI Questions The first leaner condition you see is part-throttle before he punched it. It went very rich right where he punched it. Then, around 5500 RPMs (where my peak torque is), it started to lean out.
This is the right idea, the right kind of curve (Superchips did the programming)... it is just too much because I had just put on headers/y-pipe/cats, a smaller pulley and moved from 36# to 42# injectors.
You want to be somewhat rich up to peak torque, and let it lean out after that as you approach red-line (whatever your redline is for your cam profile/setup).
This is the right idea, the right kind of curve (Superchips did the programming)... it is just too much because I had just put on headers/y-pipe/cats, a smaller pulley and moved from 36# to 42# injectors.
You want to be somewhat rich up to peak torque, and let it lean out after that as you approach red-line (whatever your redline is for your cam profile/setup).
