Finally got everything organized and street tuned enough that I could head over to the dyno.

The runs were made at 12psi on 94 octane pump gas with the stock internal coil ignition. I probably could have leaned on it a little more and upted the boost, but i'll just wait until C16 is in the tank (this is my daily driver...).
Just thought I would update everyone on the progress. The car runs great and is much faster than with the old motor.
Surprisingly, power loss is not very high at higher rpms (earlier runs were made up to 9500rpm - nice and smooth with the F bottom end and short stroke).

It made 401whp and 307ft/lbs @ 12psi.

I don't have a scanner, so I just took a picture of the monitor.




For all the detailed setup information go to www.preluderacing.com

 

very nice numbers man so you used the F20b bottem end and a H22 head?????? a little details on the motor and turbo set up please? I'm lazy and don't wanna go look but very nice numbers

okay i not that lazy I went and looked nice Ramhorn manifold what kind of turbo?? SC61 Gt35??????? what size injectors???....sucks you gotta sell it

 

Very nice! congrats

 

looks like you need to work on the ignition timing to keep the torque from dropping off a cliff.

was there any tuning involved on this run?

 

so was this on the stock f20b bottom end ?

 

Sweet numbers!!! Keep up the great work!

Is this prelude in alberta? edmonton...

 

by the looks of it he's in calgary, as devenport is in calgary, I believe

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98vtec &raquo;</TD></TR><TR><TD CLASS="quote">looks like you need to work on the ignition timing to keep the torque from dropping off a cliff.

was there any tuning involved on this run?</TD></TR></TABLE>

I think he wanted a conservitive tune, he did a fairly good job on the A?F ratios...

 

Nice work!! Your car is definately an inspiration (so don't sell it, haha )

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by XES &raquo;</TD></TR><TR><TD CLASS="quote"> The car runs great and is much faster than with the old motor.
</TD></TR></TABLE>

Wasn't the old H23 turbo pushing 500whp? This one is just faster as far as usable power??

 

up to find out what pistons are in there


im still debating boosting my f20b

 

I am using CP pistons that are 87mm bore (stock f20b bore is 85mm) in a fully built f20b bottom end. It is with a t4 62-1 turbo and 1000cc injectors with an intank 255pump and stock lines.

My wideband is not currently working so I had to use the dyno shops o2 in my exhaust pipe. When it is fixed, the a/f will be tuned better (in my opinion the af graph is not very smooth) and I will play around with the ignition timing more. I think i only added 2 and pulled 2 and that was it.

On the old h23 setup the 500+whp was on c16 fuel at boost levels around 22-24psi. This power was on pump gas at a conservative 12psi. It is my daily driver and is plenty enough power for the street (since it spins 3rd with little difficulty once the turbo spools).

 

yea, you got some peaky areas that could really use some cleaning up. I hate sniffers