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Number: 1836
From: n20capri
Date: Wed Dec 18, 2002  1:41 pm
Subject: Re: Anyone ever dyno their cars?

Body:
Nick,

I wouldn't worry too much. It did pick up 52 horsepower. It only
sounds off about 20HP, and I think that is very very easily gained by
some tuning. When they dynoed it, did they check your air fuel
ratio? For a blower car you should see 12:1 to 12.5:1 and for
naturally aspirated you should see 12.8:1 to 13.2:1. These are safe
numbers. Maybe your A/F is off. I noticed your using 24# injectors
but what fuel pump are you running? (I'd think at least a 190lph
unit if not a 255lph) Also, maybe the re-wiring job is causing some
problems. I don't know I'm just throwing out ideas. A friend of
mine just did heads and cam on his blower car and it was running like
crap. The first problem was he had the rocker arms adjusted way too
tight. The second problem was he had the wrong spark plugs in the
car. They were to short, once he put the right ones in the car ran
fine. (He had AFR heads so if you make the swap make sure to get the
right plugs...lol) Also, what ignition are you running. A stock
ignition might not be able to handle the extra fuel and spark. I'd
definitely invest in a Crane or MSD unit with a timing retard
feature. Check the timing too. I'd think 10-13 degrees is where you
should be...again tuning will help you achieve the best advance. If
I think of anything else I'll post it. Hope this helps and good
luck...keep me posted.

Mike



--- In ascmclaren@yahoogroups.com, tasmaniac1 <no_reply@y...> wrote:
> Hi Mike,
>
> Just send your condolences. It dynoed at 238rwhp with a 6psi
> Powerdyne S/C, 65mm tb, aluminum driveshaft/ flywheel, Cobra maf
> kit, and full Bassani exhaust. They said those S/C don't make alot
> of hp but come on. I think I am going to swap to a 9lb pulley, put
> on my intake, and afr heads and call it a day. Wow this is sad.
>
> -Nick
>
>
>

--- In ascmclaren@yahoogroups.com, n20capri <no_reply@y...> wrote:
> > Nick,
> > The 186-194hp numbers you came up with are very close that what
> near
> > stock 5.0's put up. My car dyno'd 360RWHP and 460Lb Torque years
> ago
> > before a tune and a few odds and ends...I should be over 400RWHP
> and
> > real close 500 RWT now. I have a few more tricks up my sleeve
and
> > hopefully next summer I'll be tickling the 10's...I SAID
> > HOPEFULLY...haha. We'll see. Good luck with yours.
> >
> > Mike

	Replies	Name/Email	Yahoo! ID	Date	Size
1837	Re: Anyone ever dyno their cars?	n20capri	n20capri	Wed  12/18/2002	2 KB
1838	Re: Anyone ever dyno their cars?	tasmaniac1	tasmaniac1	Wed  12/18/2002	4 KB
1839	Re: Anyone ever dyno their cars?	n20capri	n20capri	Wed  12/18/2002	4 KB
1840	Re: Anyone ever dyno their cars?	tasmaniac1	tasmaniac1	Thu  12/19/2002	5 KB