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top dead center · 05-02-2011, 07:54 PM

Todd brought us his dirt track car for a tune via HP Tuners. He had recently built the engine with a little higher compression ratio, and had been running un-tuned for a while. Todd was running C16 race fuel, hoping that the added octane would ease the excessive spark knock that was brought on by the higher compression. While the car was on the dyno, Todd decided to switch to E85. We installed a new Walbro 255 LPH fuel pump, filled the tank with E85, and got him on the rollers.

[Image: DSC_00201-e1304354458793-650x367.jpg]

[Image: DSC_00201-e1304354458793-650x367.jpg]

Here is the chart. The red chart is untuned, on C16 Race Fuel. The blue chart is the TDC Tune, on E85.

[Image: cav-tune-650x481.jpg]

BTW..... I want to drive this. My inner redneck yearns for dirt track racing.

JB · 05-02-2011, 08:30 PM

Holy crap that thing needed a good tune...

top dead center · (This post was last modified: 05-03-2011 08:11 AM by top dead center.)

Yeah. The owner reports that the car even felt much stronger just pulling the car out of the shop and onto the trailer. I can't wait to see how it runs.

Shon Herron · 05-03-2011, 09:21 AM

Tear down insues, LOL
almost 20 from that is ALOT, 14% increase!?!?

Not many tables to work with or did they unlock more for this platform? the 3.8 Buick LeSabre I had did not have many tables at all!!!
I was the first to ever tune one with HPT, LMAO

***jedimario*** · 05-03-2011, 11:20 PM

Best Cavalier ever.

JB · 05-04-2011, 01:15 PM

(05-03-2011 11:20 PM)jedimario Wrote: Best use of a Cavalier ever.

Fixed

crazyboardr8806 · 05-04-2011, 04:03 PM

(05-04-2011 01:15 PM)JB Wrote:
(05-03-2011 11:20 PM)jedimario Wrote: Best way to destroy a Cavalier ever.

Fixed

Fixed

**Clemsons2k** · 05-10-2011, 08:49 PM

I want to dirt race so bad. But dayum thats a torquey engine.