03 Whipple Cobra vs 18 Whipple GT350

Raced a 2.9L Whipple GT350R last night. Thought you'd enjoy the footage

Cars make within 20whp on each other. Both on the same 2.9L Gen 4 blower and both running 93 + a can or torco. Cobra running 21psi and GT350 I believe 11-12psi

He requested 60 rolls, and I started most of them in 3rd. That was my error, I should have started in 2nd.

Anyway, this is the first of 9 runs done in 2 total sessions. Cobra definitely had some heat soak issues. As the runs went on, my car was noticeably down on power with IATs spearing to be in the 150s+ with quick glances at the aeroforce. So he took my Cobra for a walk as the fun went on

He also had issues with the GT350 pulling timing between the shifts.

Really a driver's race and who got the hit.



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Intervention302 said:

Cobra definitely had some heat soak issues. As the runs went on, my car was noticeably down on power with IATs spearing to be in the 150s+ with quick glances at the aeroforce. So he took my Cobra for a walk as the fun went on

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I thought the Killer Chiller was supposed to prevent heat soak?

quad said:

I thought the Killer Chiller was supposed to prevent heat soak?

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Yes... And in most cases it does

But the heat output of the blower at that psi is greater than the coping ability of the system I feel.

Good for a run or two and then time to cool off.

Not good for back to back to back

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Intervention302 said:

Yes... And in most cases it does

But the heat output of the blower at that psi is greater than the coping ability of the system I feel.

Good for a run or two and then time to cool off.

Not good for back to back to back

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What were your intercooler temps during your runs? How high did they get? Did you have AC running?

Cobra needs a new wiper blade. Good runs

That’s a lot of back to back.

R1Lello said:

Cobra needs a new wiper blade. Good runs

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Priorities.

Get the cobra on corn.

Gotta love seeing a GT350 being put to good use roll racing ......

Love the cobra btw

Nice cobra sir

V6&V8SHO said:

That’s a lot of back to back.


Priorities.

Get the cobra on corn.

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In an effort of fairness and competitiveness. I ran the Cobra on 93 on purpose

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Haha sweet.
Was that on I93?

Good runs


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Nice runs. Good to see Terminators still kicking butt.

Canuck03SVT said:

Nice runs. Good to see Terminators still kicking butt.

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Not bad for a 17 year old stock bottom end.

Did a compression test after as well.

If course the car is ticking at idle after the runs. Figured it finally gave up the ghost.

Ended up being my EGR cap was finger tight and leaking upwards

gimmie11s said:

Good runs


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Thanks

98 svt said:

Haha sweet.
Was that on I93?

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What highway do you speak of? I'm unaware.

This was Mexico

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Intervention302 said:

In an effort of fairness and competitiveness. I ran the Cobra on 93 on purpose View attachment 1658063

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Maybe your heatsoak would have been less on E85?

Does E85 help a motor run cooler?

Intervention302 said:

What highway do you speak of? I'm unaware.

This was Mexico
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Busted!

quad said:

Maybe your heatsoak would have been less on E85?

Does E85 help a motor run cooler?

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It's plausible. But bear in mind the blower is making 2.5 more psi

I wonder if my tuner has a different scale of pulling timing back with IAT because the ethanol won't detonate.

Good question for one day.

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Intervention302 said:

It's plausible. But bear in mind the blower is making 2.5 more psi

I wonder if my tuner has a different scale of pulling timing back with IAT because the ethanol won't detonate.

Good question for one day.

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FWIW, what I've researched/read is tuners don't start pulling timing until 175° with E85. So you probably have full timing whenever you run the E90.

Intervention302 said:

I wonder if my tuner has a different scale of pulling timing back with IAT because the ethanol won't detonate.

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You use Pete?

V6&V8SHO said:

That’s a lot of back to back.


Priorities.

Get the cobra on corn.

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This. Sick Cobras all you guys

2 cool cars but the gt350 driver sounds like he’s making excuses for ED.