Looking for help on getting my 60’ down. E85 Hellion TT 6R80

Off2jail

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Hi guys and girls,

I’m looking for advice on how to get my 60’ down. Fully built E85 Hellion TT with a 6R80 and C02 boost control.

I am running a 305/45R17 ETSR drag radial. 16 psi cold. Full BMR and Kelltrac suspension. Settings is no-prep as our prepped track is essentially as good as a no prep venue.

I left on about 3.5-4 psi and 3000 RPM on the 2-step/transbrake which netted me a 1.6X 60’. This is zero boost on the launch command on the Boost Leash. I added 2 psi dome to my Boost Leash, but a car blew up and I didn’t have enough time to stay around. I figured this setting would put me about 5-6 psi on the launch.

Boost ramp rate was 40 of 50 on my controller.

What would you do next if you had my car? I’ll try it when I get home in September.

Please see attachments.

Thank you.

Shaun

99F73A46-2841-42C2-8FA8-393118B7312D.jpeg


095DBAFC-4BBF-4E75-BA54-0C16061098FE.jpeg



 
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Cory S

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No converter and I’m guessing 3.15 gear.

Need more RPM at launch, and if it’s over 4000lb with you in it, 3.31 or 3.55 gear would be beneficial.
 

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The slo mo doesn't help without also having real time.
 
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Off2jail

Off2jail

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No converter and I’m guessing 3.15 gear.

Need more RPM at launch, and if it’s over 4000lb with you in it, 3.31 or 3.55 gear would be beneficial.
Circle D 1B converter and and 3.31’s with an iron diff and a Wavetrac.

Car was a centri car before the TT kit. Not sure if this converter is ideal.

With some Googling, this is a 3000-3200 stall converter.
 

Cory S

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Circle D 1B converter and and 3.31’s with an iron diff and a Wavetrac.

Car was a centri car before the TT kit. Not sure if this converter is ideal.

With some Googling, this is a 3000-3200 stall converter.
Needs a transbrake and a 3800-4000rpm leave I’m guessing.
 


Cory S

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You’re not spinning I assume?
 
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Full speed video.

 

Cory S

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Looked good. Just bogged. Definitely seems like a heavy car like mine too. That's why I'm going 3.55's. I'm at 4100lbs.

On those Street R's, you should be able to leave at 7-8psi no problem, maybe a tad more. That should bring the 60' down a bit.
 
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Off2jail

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Looked good. Just bogged. Definitely seems like a heavy car like mine too. That's why I'm going 3.55's. I'm at 4100lbs.

On those Street R's, you should be able to leave at 7-8psi no problem, maybe a tad more. That should bring the 60' down a bit.
Yeah. The car is almost 4200 lbs race weight with me in the drivers seat. All add more boost next time around.

Would you keep the 2-step RPM the same? 3000 RPM?

Shaun
 

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Yeah. The car is almost 4200 lbs race weight with me in the drivers seat. All add more boost next time around.

Would you keep the 2-step RPM the same? 3000 RPM?

Shaun
Yeah, she's a beefer as well. I would try 3400-3500 on the 2-step and bring boost up a couple psi. It will make the converter flash higher as well. Those tires will hold a LOT.....
 
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Off2jail

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Yeah, she's a beefer as well. I would try 3400-3500 on the 2-step and bring boost up a couple psi. It will make the converter flash higher as well. Those tires will hold a LOT.....
I’ll give it a go. I’ll also have my boost ramp rate in at 100%. It was at 80% for that run.

Thanks again.

Shaun
 

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I’ll give it a go. I’ll also have my boost ramp rate in at 100%. It was at 80% for that run.

Thanks again.

Shaun
You'll get it. When are you going next? The air has been JUNK lately. I'm waiting until September.
 

 
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