Ready to get #s on the Dyno
FWIW I only put down 350rwhp through a 3200 stall with a bigger cam but shitty heads and ran 11.7s. Dyno numbers don't mean dick
. Dialing in the combo as a whole is worth a LOT more then 10 peak rwhp anyway.
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Joined: Feb 2009
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From: A DEN
Honestly I think that is a reasonable price for an LT1 tune. Its a lot harder to tune an LT1 than an LS1. LT1 cars take a lot longer to get a spot on tune. Remember a dyno is only a tuning tool dont get that disappointed at the number take it to the track and look at the mph. My good buddy only makes 490 rwhp on a chasis dyno through a big stalled auto and with a 180 shot goin through a 9 inch rear. This is a stock bottom end LS1 car thats full weight, car will run 10.50's 10.60s all day long
Also what are the corrected numbers. Those numbers arnt bad with an Emissions cam, and stalled auto but i do think the graph should be way smoother and have a few more ponies.
Honestly I think that is a reasonable price for an LT1 tune. Its a lot harder to tune an LT1 than an LS1. LT1 cars take a lot longer to get a spot on tune. Remember a dyno is only a tuning tool dont get that disappointed at the number take it to the track and look at the mph. My good buddy only makes 490 rwhp on a chasis dyno through a big stalled auto and with a 180 shot goin through a 9 inch rear. This is a stock bottom end LS1 car thats full weight, car will run 10.50's 10.60s all day long
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From: Portage Pa.
That dyno doesnt look right at all. Could you please list all of your mods. Are you running cats, TB, WP, LTs? Are the rockers set correct? How old is the opti?
Also what are the corrected numbers. Those numbers arnt bad with an Emissions cam, and stalled auto but i do think the graph should be way smoother and have a few more ponies.
Also what are the corrected numbers. Those numbers arnt bad with an Emissions cam, and stalled auto but i do think the graph should be way smoother and have a few more ponies.
12 Second Club
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From: Portage Pa.
Thread Starter
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That dyno doesnt look right at all. Could you please list all of your mods. Are you running cats, TB, WP, LTs? Are the rockers set correct? How old is the opti?
Also what are the corrected numbers. Those numbers arnt bad with an Emissions cam, and stalled auto but i do think the graph should be way smoother and have a few more ponies.
Also what are the corrected numbers. Those numbers arnt bad with an Emissions cam, and stalled auto but i do think the graph should be way smoother and have a few more ponies.
High flow cats
54mm stock ported TB
Mezeire HD EWP
Tri Y II's from clear image/ through dual 2.5" exhaust
Raiss Intake
36lb injectors/ racetronix 255lph
rockers are set properly
Opti is probably over a year and half old.
Borg Warner Coil from csk(only one available asap)
How do I go about getting corrected numbers? Through the speedshop? I myself am a bit disappointed. Maybe f body maf would help a bit. Cats and mufflers hampering the exhaust side? Had contact with Lloyd and saids it's reading a bit low as well.
+1
.He is running cats which cost some hp and tri-Y headers which lower the rpm range and also cost hp compared to traditional longtubes...I think his numbers are right where they should be, and if he has the suspension it will ET a hell of a lot better then any 340rwhp M6 ever will.
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What are the consequences of me running w/o cats? I'm thinking of going with a different header. I'm thinking of hitting another dyno and seeing what it does again. I'll get some track times and, if I'm still not happy. I guess I'll get a bigger cam, or even better another head/cam setup.
He is running cats which cost some hp and tri-Y headers which lower the rpm range and also cost hp compared to traditional longtubes...I think his numbers are right where they should be, and if he has the suspension it will ET a hell of a lot better then any 340rwhp M6 ever will.
Funny thing is bowtienut(Pat Gish) is running tri-ys on his stock shortblock car, putting down 425rwhp.
https://ls1tech.com/forums/lt1-lt4-m...4-425rwhp.html
I did not post this to say sdotlog should have made 425rwhp. I posted it to say the Tri-Ys can't be all that bad if they let another car make that kind of power.
Last edited by 96capricemgr; Feb 20, 2010 at 06:32 AM.
Funny thing is bowtienut(Pat Gish) is running tri-ys on his stock shortblock car, putting down 425rwhp.
https://ls1tech.com/forums/lt1-lt4-m...4-425rwhp.html
I did not post this to say sdotlog should have made 425rwhp. I posted it to say the Tri-Ys can't be all that bad if they let another car make that kind of power.
https://ls1tech.com/forums/lt1-lt4-m...4-425rwhp.html
I did not post this to say sdotlog should have made 425rwhp. I posted it to say the Tri-Ys can't be all that bad if they let another car make that kind of power.
The single scenario comparisons are useless - I cut high 1.5 60's on my stock 10 bolt and ran 11s, does that mean 10-bolts aren't all that bad and upgrading is a waste??? Sikora ran 8's on LT4 heads, does that mean aftermarket heads are useless to anyone slower then 8s??
Not sure what your post means, if anything. At least you didn't link to AI's site this time?
.To the OP: Glad you got it dyno tuned and running well - now take it to the track and have some fun!