I finally made it to the track since I installed my air temperature gauges (See previous post called Intercooler Effectiveness).

Temperature: 80 degrees
Humidity: 22 percent
Pressure: 28.14 inches

Before the run:
The pre-IC temp was approximately 130 degrees.
The post-IC temp was about 100 degrees.
Air temp in the plenum: 132 degrees.

After the run (WITH water/alcohol injection):
The pre-ic temp was up to 187 degrees.
The post-IC temp was 122 degrees.
Air temp in the plenum: 97 degrees (thanks to water/alcohol).

The blower put out 12 pounds of boost and I was able to run 38 degrees advance with ZERO knock retard for the duration of the run.

And for those with inquiring minds, the result of this run was a 12.21 @ 112.52 mph.

My objective for tonight was not to go all out to beat my best but to acquire scanner data. In fact, I went out in "street trim" tonight. Now, I'm very confident the blower system works well that the next time I race, I'll go in "race trim".

------------------
Willie

Supercharged 1987 305 IROC-Z, Daily-Driver, Emissions-Legal.
Former Paxton (6-psig) with 50-hp nitrous: 12.043 @ 112.86 mph.
ATI D1SC (10-psig): 12.056 @ 116.62 mph.
All stats are altitude corrected for 3,100 feet using NHRA's Altitude Correction Table.

http://willie.camaro-firebird.org/

1987 "20th Anniversary Commemorative Edition" Z28 Convertible -- Super Chevy Show Class Winner, 1998.

[This message has been edited by Willie (edited September 28, 2001).]

 

Thanks for the data Willie, thats very impressive.

 

what ratio of alcohol do you run and what type of alcohol?

 

I use a 60/40 mix of distilled water to denatured alcohol. I buy the alcohol by the gallon at Home Depot.

Willie

 

Good info

------------------
Check out my Hompage,or the beginnings of one.355 dynoed at 400HP at 5800RPM & 410LBFT of TQ,on Motorhttp://www.procharged89z.cz28.com/index.html

 

I will be posting some temps also,only in plenum temps since I can get these of my engine moniter screen and can get them under boost with my datalog

------------------
Check out my Hompage,or the beginnings of one.355 dynoed at 400HP at 5800RPM & 410LBFT of TQ,on Motorhttp://www.procharged89z.cz28.com/index.html

 

Willie

With the compression ratio you currently have how much boost are you going to be able to put into that engine? Ever thought about lowering it and cranking it up some more?

RMK

 

Cool thanks for the info

------------------
'91 Formula
383CI Superram, Sportman II's
SLP Cam 214/224 .470/.490
Vortech V1 S-Trim with custom 8 rib pullies
5-speed
3.42
12.34@117.04, 1.91 60Ft.
on Drag Radials