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-   -   V10 viper / 727 combo help (https://classracer.com/classforum/showthread.php?t=68660)

DonatoEng 01-26-2018 01:24 PM
Re: V10 viper / 727 combo help
 
I have some new 727 TF cases to fit the Viper also.

Travis Miller 01-26-2018 08:33 PM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by R5ROB (Post 553380)
Car is a super stock gt fwd conversion
According to the 2018 NHRA Rulebook in the SS/GT Section 12B page 12 under ENGINE: The first sentence reads...

" V8 only; must be same make as body."

That means a V10 is not currently allowed to run in SS/GT. This is not a new rule as people wanting to run a V6 in SS/GT in the past have been told they cannot.

Mark Yacavone 01-26-2018 11:39 PM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Travis Miller (Post 554536)
According to the 2018 NHRA Rulebook in the SS/GT Section 12B page 12 under ENGINE: The first sentence reads...

" V8 only; must be same make as body."

That means a V10 is not currently allowed to run in SS/GT. This is not a new rule as people wanting to run a V6 in SS/GT in the past have been told they cannot.
Travis, While you're here, when did the GT rule change from where your transmission had to match your engine in availability?

Travis Miller 01-27-2018 12:53 AM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Mark Yacavone (Post 554546)
Travis, While you're here, when did the GT rule change from where your transmission had to match your engine in availability?
Engine/transmission rule is still the same.

Mark Yacavone 01-27-2018 01:16 AM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Travis Miller (Post 554548)
Engine/transmission rule is still the same.
Oh, okay. So if the guide doesn't say A (automatic) only, you can run a manual trans.?
No question?

Travis Miller 01-27-2018 12:16 PM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Mark Yacavone (Post 554549)
Oh, okay. So if the guide doesn't say A (automatic) only, you can run a manual trans.?
No question?
Not always true. Over the years there have been cases where it has been brought to light that a certain combination was manual only or automatic only. If there is a question whether an engine/body did not use both manual and automatic transmissions, that needs to be presented to the NHRA Tech Dept in writing so the combination can be researched.

Mark Yacavone 01-27-2018 06:30 PM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Travis Miller (Post 554564)
Not always true. Over the years there have been cases where it has been brought to light that a certain combination was manual only or automatic only. If there is a question whether an engine/body did not use both manual and automatic transmissions, that needs to be presented to the NHRA Tech Dept in writing so the combination can be researched.
Interesting.
So, now I'm curious.
The 91-96 Caprice is okay with a stick with one V8, but not the other?
Maybe the Venezuelan taxi and police option?
I wonder what trans? T-5 @ 4200 lbs.?
Also wonder if anyone can find the GM part numbers for the clutch pedal and other assorted linkage parts?

Travis Miller 01-27-2018 08:14 PM
Re: V10 viper / 727 combo help
 
Maybe I should repeat my previous post.

If there is a question whether an engine/body did not use both manual and automatic transmissions, that needs to be presented to the NHRA Tech Dept in writing so the combination can be researched.

Mark Yacavone 01-27-2018 10:49 PM
Re: V10 viper / 727 combo help
 
Quote:
Originally Posted by Travis Miller (Post 554582)
Maybe I should repeat my previous post.

If there is a question whether an engine/body did not use both manual and automatic transmissions, that needs to be presented to the NHRA Tech Dept in writing so the combination can be researched.
No need, Travis.
I just didn't know it was our job.
If you would, tell me who to contact so I can get on the payroll.
;-)


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