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Jason Moyle Racing |
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Return to: ROLLING ROAD & ENGINE DYNO RESULTS |
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#Post#: 1438-------------------------------------------------- |
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Twin dellorto abf |
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By: Robin_16v Date: December 15, 2013, 1:17 pm |
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Hello, |
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I had my car tested a view weeks back, and this were the |
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results! |
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Air fuel ratio was all over the place if i look at the graph.. |
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And my max torgue was a bit to high i gues, for a couple of |
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283/279 cams. |
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Feedback to get the torque to a lower rpm would be great! |
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Engine spec: |
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Std block/head |
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Catcams 283/279 |
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custom 4-1 exhaust |
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60mm tailpipe |
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twin 45 dhla dellortos. |
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[URL= |
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http://s957.photobucket.com/user/RobinBreve/media/Rapportcrossauto-page-0_zps2d… |
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[URL= |
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http://s957.photobucket.com/user/RobinBreve/media/DSC01450_zps7460b0ff.jpg.html… |
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#Post#: 1448-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: chrismc Date: December 17, 2013, 2:59 pm |
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You could advance the cam timing to make it less peaky |
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If the engine is only using a stock head/block/c.r then the cams |
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are probably a tad wild for the rest of the spec |
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#Post#: 1450-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: Robin_16v Date: December 18, 2013, 5:48 am |
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Ok, i will try that, thanks for the advice. I had the cams in |
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another engine before. But early this year it was blown up :'( I |
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need to start all over again. I will get the head ported this |
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winter, maybe will get some other pistons with it. |
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#Post#: 1456-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: GollumFreeZone Date: December 18, 2013, 1:53 pm |
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I think it needs a bit more squeeze - either fancy pistons or |
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deck the block and skim the head to get about 11.5:1, or as |
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close as you can. |
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#Post#: 1461-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: Smudge Date: December 18, 2013, 4:24 pm |
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It looks like you rev milit is only 6700rpm and the BHP is still |
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rising at this point, did you rev it past this, any graphs? |
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I would rev it past 7000rpm, the cams should keep making power |
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at least up to 7500rpm. |
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#Post#: 2249-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: Sebeya Date: April 25, 2018, 12:19 am |
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[quote author=Smudge link=topic=184.msg1461#msg1461 |
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date=1387405497] |
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It looks like you rev milit is only 6700rpm and the BHP is still |
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rising at this point, did you rev it past this, any graphs? |
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I would rev it past 7000rpm, the cams should keep making power |
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at least up to 7500rpm. |
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[/quote]I have the same opinion as you. |
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#Post#: 2314-------------------------------------------------- |
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Re: Twin dellorto abf |
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By: Radfrod Date: June 4, 2019, 2:33 am |
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I am thankful for the detailed explanation. |
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