[s-cars] 80tq: 20v Project Update, 415whp, 12.25, etc

[CaptMagu at aol.com]

In a message dated 11/11/04 9:37:33 AM, jbufkin at austin.rr.com writes:

James

> Thats why I think (in my opinion) the car will make the unadjusted number 
> at sea level.   I also think, that the Colorado guys can't just go down to 
> a dyno in KC and make some pulls.  Their cars would have to be tuned again 
> to have any chance of making decent power without all kinds of bizarre 
> stuff happening (Mostly not being able to maintain their current boost 
> levels-hence they will loose some power).
> 
I have already BTDT with my car. I have been to sea level with my car last 
year for the ACNA Nationals at Sears Point and I did some baseline runs on a 
dyno. My O2 sensor for my wideband air/fuel ratio was on the fritz and I wanted 
to baseline my mixture for the sea level climate. I think it was the very dyno t
hat Javad uses since he was there. The issue with my car was running out of 
fuel at the top end. As I approached 5500rpm, the fuel pressure gauge actually 
started going lower. With this forced lean condition I did have to limit my 
boost to about 21lbs. I have since remedied this problem with my recent fuel 
system upgrades:

1. Larger injectors-440cc vs 370cc@ 3.0 bar
2. Fuel reservoir
3. Larger fuel lines
4. Bosch Motorsport 044 high flow fuel pump

I also run an adjustable fuel pressure regulator that allows blanket 
manipulation of my fuel curve up and down. In addition I have a MAF bypass that I can 
meter bypass air around the MAF. This allows a small adjustment of unmetered 
air to lean things out if required. Yes, we will require some tuning but it 
will be simple and quick.

Hap, wit all dahkine justments in Evahboost, Maguire