TH400 loss over 6spd from PTK 88 car.
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For those that maybe interested...my customer called and dynoed his PTk kit car with the 88 again with a Th400 this time and 24psi. Car made previously 1012rwhp/909rwtq with the 6spd. He said the car dynoed 922rwhp/898rwtq. He was not a happy camper....but just thought some of you might want to know the difference. I know this is often asked. So looks like an additional 10% loss on top of what a 6spd soaks up. Not to bad, but not to good either.
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Yes, the ET will drop significantly, and the mph will still rise. Remember may make less peak power now. But down the track it makes more average hp now. The hp/spool losses from each shift of the 6spd are now non-existant.
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i have seen anywhere fron 60-100rw loss between a M6 and TH400 on cars ranging from 500-800rw. Heck I lost 80-85rwhp going from a M6 to a lightweight internal TH350 with and aluminum driveshaft at only 500rwhp with a PT4200 Yank.
I dont think you can hang a set number on it really, lot depends on the converter like Gator said.
I dont think you can hang a set number on it really, lot depends on the converter like Gator said.
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Originally Posted by gator's 99TA
convertor must be very efficienct. i would have expected more loss.
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Yeah, I'm freshening up the driveline, making some slight changes (like staged BS3), and doing some detailing.
Been working on it all the time, but still have a long way to go.
http://www.ls1speed.com/pictures/INTMD8011.jpg
Been working on it all the time, but still have a long way to go.
http://www.ls1speed.com/pictures/INTMD8011.jpg
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I'm assuming this is the LT1 383 that previously had the McLeod twin disk setup, full accessories and ran a 158 trap @ like 9.6 or something close to that?
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Great info! ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
That car is going to FLY with the TH400 in it. Launch at full boost off transbrake, NO boost loss through shifts. It is going to be INSANE. I bet ET will drop a ton and mph will go up a lot as well![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
Wheelie bars on the car?![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
That car is going to FLY with the TH400 in it. Launch at full boost off transbrake, NO boost loss through shifts. It is going to be INSANE. I bet ET will drop a ton and mph will go up a lot as well
![Devil](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_devil.gif)
Wheelie bars on the car?
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)