Re: PTC vs. Ultimate converter
[Re: Eric]
#2231858
01/10/17 09:22 PM
01/10/17 09:22 PM
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Joined: May 2012
Posts: 72 sioux falls, sd
10sec.dart
OP
member
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OP
member
Joined: May 2012
Posts: 72
sioux falls, sd
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yea Eric mine looks exactly like that sometimes, ive gone that high with a 3500 pill, going to try some adjustments on the 4 link for next season, then Lenny said the converter being to tight can cause that to, Ive been fighting the wheelies for a while, I could have a 3300 pill in the break and pull a huge wheelie then put a 3200 in and barley lift the tires off the ground.
Last edited by 10sec.dart; 01/10/17 09:26 PM.
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Re: PTC vs. Ultimate converter
[Re: justinp61]
#2232740
01/12/17 12:20 PM
01/12/17 12:20 PM
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Joined: Oct 2006
Posts: 176 NC USA
ultimatelenny
member
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member
Joined: Oct 2006
Posts: 176
NC USA
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I have an 8" Ultimate that was built for my 408, it never 60' (1.38) within a .1 of the 9.5" converter it replaced. Most of the time it was off .13-.15. When i pulled the 408 down to freshen I discovered my block was flexing so I decided to go a different direction. I found a Indy headed R1 engine that was apart and built a 434 using the block, heads and intake. I called Lenny after dynoing the engine and we talked about the converter. He thought it would be close and wanted me to try it, so I did. It was slipping 18% at the 1/8 and the 60' was in the 1.55 range. On the phone again and Lenny says send it back. He tightened it up 500 rpms, it now runs 1.44 60' and picked some mph.
The thing is it should be low-mid 1.30's IMO with the extra power the new engine added.
Nothing personal to Lenny as I think he's a good guy, but I have about $1600 in this converter and it doesn't work. I've talked to Kenny at PTC and I'm pretty sure that's where it's going to see if he can fix it. Justin, I would think the best way to remedy this would be to give me a call and discuss it, I am not that hard to get along with. I know there is a little more to this than what has been typed. If you want to get this resolved the right way instead of posting one side of this on here, I would be more than happy to help you out. Ultimate has and always will go out of our way to make sure each and every customer is treated fairly and with respect.
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Re: PTC vs. Ultimate converter
[Re: ultimatelenny]
#2232751
01/12/17 12:34 PM
01/12/17 12:34 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Lenny.. dont all conv slip more in the 1/8 due to not being locked up for much time.. thanks for my conv.. it works well.. but I dont have much time on it due to injection issues.. but I think I have that figured out and will be putting miles on it in the spring
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Re: PTC vs. Ultimate converter
[Re: MR_P_BODY]
#2232791
01/12/17 01:50 PM
01/12/17 01:50 PM
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Joined: Oct 2006
Posts: 176 NC USA
ultimatelenny
member
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member
Joined: Oct 2006
Posts: 176
NC USA
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Lenny.. dont all conv slip more in the 1/8 due to not being locked up for much time.. thanks for my conv.. it works well.. but I dont have much time on it due to injection issues.. but I think I have that figured out and will be putting miles on it in the spring You are correct sir. Unless the car has a lot of gear, data will always show more slippage at the 1/8 because the converter will see more load at that point on the track. The more distance and time down the track gives the converter time to catch up to the crank. Race pac data will show that the most amount of slippage occurs on the shift when it is under a load, in some combos we have seen as much as 50%-60% at that point (IE.-PG, weight, gear-ect)so you can see how ratios, torque and weight affect coupling. It's all about the specific combination you run and optimizing that combo to get it down the track as efficient as possible.
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Re: PTC vs. Ultimate converter
[Re: ultimatelenny]
#2232843
01/12/17 02:45 PM
01/12/17 02:45 PM
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Joined: Oct 2003
Posts: 11,688 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,688
W. Kentucky
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I have an 8" Ultimate that was built for my 408, it never 60' (1.38) within a .1 of the 9.5" converter it replaced. Most of the time it was off .13-.15. When i pulled the 408 down to freshen I discovered my block was flexing so I decided to go a different direction. I found a Indy headed R1 engine that was apart and built a 434 using the block, heads and intake. I called Lenny after dynoing the engine and we talked about the converter. He thought it would be close and wanted me to try it, so I did. It was slipping 18% at the 1/8 and the 60' was in the 1.55 range. On the phone again and Lenny says send it back. He tightened it up 500 rpms, it now runs 1.44 60' and picked some mph.
The thing is it should be low-mid 1.30's IMO with the extra power the new engine added.
Nothing personal to Lenny as I think he's a good guy, but I have about $1600 in this converter and it doesn't work. I've talked to Kenny at PTC and I'm pretty sure that's where it's going to see if he can fix it. Justin, I would think the best way to remedy this would be to give me a call and discuss it, I am not that hard to get along with. I know there is a little more to this than what has been typed. If you want to get this resolved the right way instead of posting one side of this on here, I would be more than happy to help you out. Ultimate has and always will go out of our way to make sure each and every customer is treated fairly and with respect. Lenny as I mentioned in the post you quoted I think you're a good guy, I have no reason not to think that. I just posted my experience with your converter, not bashing at all. You obviously build good converters, too many guys running them not to be. I'm sure mine is a good converter, just not right for my application.
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