Paxton low numbers?

[marctallman]

Hey guys,

I just had my car dynod after installing my paxton kit from terry. It has 1050cc injectors and running the stock 3.8 pulley. The car was ran on a dynojet and only put down 448whp and 421 tq. Just wondering what people with similar setups are putting down. Seems low to me.

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[kcc0521]

Wow there must be something wrong with that. How does the car feel? Did they data log it? Who did the tune?

 

[marctallman]

Wow there must be something wrong with that. How does the car feel? Did they data log it? Who did the tune?

Car feels great, still pulls hard but then again its the fastest car I've driven so I wouldn't be able to tell the difference. I did some data logging with John from Lund tuning so it is a remote tune but still I see great results from him with others on the site.

 

[Jeff's FRC]

Something is terribly wrong if the dyno was correct. Did you log boost on the dyno?

 

[SolarFlare]

Do a pull in 3rd from 3k and look at the logs. Any KR? What's lambda? What's total timing? Maybe it didn't build boost on the dyno.

 

[marctallman]

Something is terribly wrong if the dyno was correct. Did you log boost on the dyno?

No I didn't log it on the dyno. Thats what I was thinking, 450 is extremely low for my setup.

 

[marctallman]

Do a pull in 3rd from 3k and look at the logs. Any KR? What's lambda? What's total timing? Maybe it didn't build boost on the dyno.

Im not on the dyno anymore, just had 4 pulls. Im not sure what the numbers are. It definitely boosted on the dyno, I have no doubt in that. I wonder if I have a leak somewhere that I cant see, but then again it wouldnt be getting enough air then and would stall.

 

[SolarFlare]

Im not on the dyno anymore, just had 4 pulls. Im not sure what the numbers are. It definitely boosted on the dyno, I have no doubt in that. I wonder if I have a leak somewhere that I cant see, but then again it wouldnt be getting enough air then and would stall.

Then log it now so others here can look at it or go to another dyno.

 

[dubster99]

That's what a full bolt on car should make, not a supercharged car. Something is wrong. Either the dyno is wrong, or you're bleeding boost like crazy out of a leak.

 

[marctallman]

Then log it now so others here can look at it or go to another dyno.

I just did a log of it but I cant figure out how to attach it to this thread. If you give me your email I can send it. Thanks!

 

[Bartly]

What's your elevation and what octane gas do you use. Maybe the dyno wasn't corrected for sea level? The way I understand it, dynos usually do some sort of conversion to display what your car would see at sea level, maybe yours was reporting what you were actually getting at your elevation?

 

[MyFirst5.0]

post the dyno chart

 

[Slamdcoop0428]

Your car should make over 600whp on accident with that setup. Do you have the lund boost box to log boost? If not the log wont show.

 

[dubster99]

Yeah you need a boost reading from the dyno or a boost gauge to really see what's going on.

 

[15GTPP]

I had a issue similar to this and the tune file was corrupt. Car seemed like it was making boost but the car didn't feel powerful. It was a night and day difference once we figured ot it was the tune and not s mechanical issue.

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