Boosted_One Posted October 28, 2002 Report Share Posted October 28, 2002 http://4g.isturbo.net/21dyno.jpg Well Folks there done and heres the scoop the CAM is .430 lift 280 dur opens at 28 D BTDC closes at 72 ATDC These are roller cams and use the 3.0L v6 SOHC roller rocker and bolt in to a stock hyd head we were able to change the cam on the dyno in 25 min Our first run was 151.7 hp and and 168.1 ft/lbs of torque we made two more runs and the numbers very close then we installed the roller cam 161.2 hp and and 190.5 ft/lbs of torque our test subject was eric larsen 87 running at 8 to 9 psi and had a bad spark plug wire so we were only able to get 4800 rpm the AFR on this car was near perfect at 15 to one to about 11 to 1 the cam help with boost lag and provides quite a bit in the low end as well as the top my 87 running at 12 psi produced 181.8 hp and and 239.6 ft/lbs of torque peak hp at 3800 rpm and peak torque at 4200rpm this car however was running rich and at 3800 rpm went of the AFR scale the dyno sheet on this cat is viewable at http://4g.isturbo.net/21.htm in short this car with a corrected AFR should be 200+ hp at 12 to 13 psi and as soon as i am able to correct the fuel problem i intend to make more dyno runs with both cars and the more boost you run the better this cam preforms they are available NOW @325.00$ without rockers or 425.00$ with used rockers or 535.00 with new rockers call me at 415-531-5965 Tyrrell Morris P.S. and as soon as i am able to correct problem in both cars I intend to make more dyno runs on the 30th or 31st and will post those results as well ---------------------------------------- -NOTE- This post was copy and pasted. Link to comment Share on other sites More sharing options...
Joel Posted October 28, 2002 Report Share Posted October 28, 2002 Not impressive at all yet. I don't believe, according to these numbers, I would spend $10 on the setup no less $300+. I agree with Tim C on this one, don't bother wasting my time telling me about dyno numbers that are supposedly on a screwed up car. Its worthless. Joel Link to comment Share on other sites More sharing options...
heefner Posted October 28, 2002 Report Share Posted October 28, 2002 Never-the-less, thanks for posting the dyno sheet Mike, even if it doesn't mean much. Link to comment Share on other sites More sharing options...
Boosted_One Posted October 28, 2002 Author Report Share Posted October 28, 2002 I posted this dyno run as it shows a similar graph as mine and others. This dyno run HP stays a little more level than mine but it is very similar in its peaks and drop off points. Link to comment Share on other sites More sharing options...
Joel Posted October 28, 2002 Report Share Posted October 28, 2002 I posted this dyno run as it shows a similar graph as mine and others. This dyno run HP stays a little more level than mine but it is very similar in its peaks and drop off points. Thats EXACTLY what I was noticing. I ment no offence to Mike about this post, I was simply commenting that Mike's basically already done better on his setup, and the curve still looks the same. Perhaps if this wasn't a so-called incomplete dyno it would be different? It honestly doesn't help sell a cam if the curve looks like that! Joel Link to comment Share on other sites More sharing options...
eeaston Posted October 28, 2002 Report Share Posted October 28, 2002 Just a quick question... Did the non-roller cam you tested have the same lift and duration as the roller cam? That's a big detail! Link to comment Share on other sites More sharing options...
kev Posted October 28, 2002 Report Share Posted October 28, 2002 Just a quick question... Did the non-roller cam you tested have the same lift and duration as the roller cam? Â That's a big detail! Yes the non-roller cam had approximately the same lift and same duration. kev Link to comment Share on other sites More sharing options...
Joel Posted October 28, 2002 Report Share Posted October 28, 2002 But the roller rockers are a 1.6 ratio, so lift will be more when comparing the 2 cams with ~ the same specs. Joel Link to comment Share on other sites More sharing options...
kev Posted October 29, 2002 Report Share Posted October 29, 2002 But the roller rockers are a 1.6 ratio, so lift will be more when comparing the 2 cams with ~ the same specs. Joel True Link to comment Share on other sites More sharing options...
Heron Posted November 4, 2002 Report Share Posted November 4, 2002 Thanks for the info and the time you've spend doing the dynos. At least we have something else to compare!!! Regards, Heron Link to comment Share on other sites More sharing options...
Tim_C. Posted November 13, 2002 Report Share Posted November 13, 2002 The specs given are at the valve, so the rocker ratio is figured into that. Tyrell's .430 lift is exactly that, and not hard to get when grinding a stock cam since theratio is much greater from 1.4 to 1.6. Tim C. Link to comment Share on other sites More sharing options...
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