Funny Dyno result on my 940 LPT

[vincentl]

Please check the result here .... http://forum.lowyat.net/index.php?act=Attach&type=post&id=107905

Please comment .....

[BrickBaller]

What's so funny?

[vincentl]

What's so funny?

I'm not saying funny as in Hilarious, maybe I should put there as weird ?
actually, I'm not sure whether my car has the right set-up .....
when my car runs at 6000rpm, it has even lower HP than when I run in 3000 rpm ...

[vincentl]

During the test, I noticed that @ rpm 6000 A/F mixture still rich and not lean. meaning Fuel delivery is not an issue.....

[MikeHardy]

looks like a normal t cam curve

[vincentl]

looks like a normal t cam curve

If this is a cam issue ... , If I upgrade to A cam, would it help ?

[blarf]

Doesn't the stock ignition map pull quite a bit of timing past 5 grand or so... quite likely to save the auto transmissions?

[rkr]

Have you opened up the airbox? My butt-dyno gave similar results untill I opened it up. In stock form it's sucking all the air through ~40mm hole, talk about intake restriction.

Nah, just noticed the open pod intake part - so assumably you have sorted that out.

[vincentl]

Have you opened up the airbox? My butt-dyno gave similar results untill I opened it up. In stock form it's sucking all the air through ~40mm hole, talk about intake restriction.

Nah, just noticed the open pod intake part - so assumably you have sorted that out.

I'm currently running with Open pod air filter.

[Unregistered]

During the test, I noticed that @ rpm 6000 A/F mixture still rich and not lean. meaning Fuel delivery is not an issue.....

How rich? An overly rich condition at that rpm can kill power quickly, remember you are talking forced induction induction here. As far as a T profile is concerned the 90+ 780's run a rev limit of 6,300 rpms w/t cam. How about your VE know where it's @, or?

[MikeHardy]

rev limit was the same for most of them, just the T cam peaks at lower rpm then starts to fall. B230ET peaks at 5800rpm but run the same rev limit

[Dauntless]

If this is a cam issue ... , If I upgrade to A cam, would it help ?

It should. The T cam is junk.

[WizuhD]

i dynoed with my IPD cam and it pulled the whole way to red, and like yours before the ipd cam i peaked power just below 5k. sounds like new cam time ;]

[stylngle2003]

doesn't look too terrible for a low boost T cammed car

i'd port the turbine housing out, port the manifold, and if you havent already, put a full 3" on it. after that, you could redyno if you wanted, but that would be a good starting point for camming

[boostdemon]

yeah im leaning towards your turbo is designed for a motorcycle and it cant flow as much air as your motor needs. Maybe im wrong. I've seen dyno sheets with T cams and it will keep rising, but level out a bit... it shouldnt crash, thats just stupid.

[Unregistered]

yeah im leaning towards your turbo is designed for a motorcycle and it cant flow as much air as your motor needs. Maybe im wrong. I've seen dyno sheets with T cams and it will keep rising, but level out a bit... it shouldnt crash, thats just stupid.

Don't think your wrong at all, I'm thinking a mitsu 19c, t? would do wonders at lower boost levels.

[impulse922]

Don't think your wrong at all, I'm thinking a mitsu 19c, t? would do wonders at lower boost levels.
hell even a 16t could get him to 300 hp