The Pontiacolypse
Thread Starter
Joined: Jul 2014
Posts: 10,451
Likes: 1,873
From: My own internal universe
Well I hit dyno yesterday. Only three pulls. The guy was pretty cool. Let me make some tweaks without charging me for the hourly rental rate. Car made 560/464, but you will see on the graph it was pretty bad tire slip. I do not think I even found peak torque. Ended up CUTTING timing to make more power, which is kind of neat. Carried like crazy after peak, which I am very happy with. I should say I did everything to stack the odds AGAINST it. 90mm TB spacer to simulate ls7 intake, ethanol free gas, heavy street tires, left air filters on to choke it back. Tried my best to call it baseline. Anyway, here is the graph.
Thread Starter
Joined: Jul 2014
Posts: 10,451
Likes: 1,873
From: My own internal universe
Forgot to mention --
Those are uncorrected numbers.
Fuel injectors went static during the pulls. I added fuel and AFR went from 13.1-13.3.
Guy at the shop was very complimentary of the car. Said he would trust it anywhere. So that was cool.
In a few weeks I'll go back with better tires, more normal fuel, 102 TB spacer or possibly Holley 105 TB, better injectors, so we will see.
Those are uncorrected numbers.
Fuel injectors went static during the pulls. I added fuel and AFR went from 13.1-13.3.
Guy at the shop was very complimentary of the car. Said he would trust it anywhere. So that was cool.
In a few weeks I'll go back with better tires, more normal fuel, 102 TB spacer or possibly Holley 105 TB, better injectors, so we will see.
Usually wheel spin looks more wavey than that. It almost looks like you were part throttle until 6k then went WOT lol. Either way nice baseline and looks like room for improvement. I would stick with the E10 since that's what most pumps have now though unless you always get fuel that has no E in it.
Thread Starter
Joined: Jul 2014
Posts: 10,451
Likes: 1,873
From: My own internal universe
Originally Posted by ddnspider
Usually wheel spin looks more wavey than that. It almost looks like you were part throttle until 6k then went WOT lol. Either way nice baseline and looks like room for improvement. I would stick with the E10 since that's what most pumps have now though unless you always get fuel that has no E in it.
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Thread Starter
Joined: Jul 2014
Posts: 10,451
Likes: 1,873
From: My own internal universe
Thanks guys. It has been ok here. Far enough inland that by the time it got here it was mostly spent. Lost power but have generator. I started brainstorming a welding disconnect on the house so I can both run a better welder AND hook generator up to it.
