Lifter Problems with 346
Update: Mike looked at my dyno sheets, and agrees that I am seeing valvefloat at higher RPM's. However, he thinks it is all after the peak, in which case I may not gain any peak power by fixing the problem.
TECH Fanatic
Joined: Nov 2001
Posts: 1,695
Likes: 9
From: Raleigh, NC
Originally Posted by BADSS
JPR had mine totally removed for my M6; I can say it 'hits' much harder now.
Thanks, Viper. That's what I thought.
Thanks, Viper. That's what I thought.
Last edited by niphilli; Dec 23, 2003 at 03:15 PM.
Originally Posted by niphilli
Torque Management most certainly has an impact on M6 cars. It is more invasive on the '01+ cars than on the pre '01s. If you powershift an '01+ car you can feel it lay down as torque management kicks in. My '03 Z lays down bigtime inbetween shifts from TM. It has never been a big issue on my '99.
Last edited by mikey; Dec 23, 2003 at 04:02 PM.
Originally Posted by Cstraub
Has anyone here used the oil restrictor pushrods to combat valve float?
Cstraub
Cstraub
Do they hurt the valve train?
Originally Posted by niphilli
Torque Management most certainly has an impact on M6 cars. It is more invasive on the '01+ cars than on the pre '01s. If you powershift an '01+ car you can feel it lay down as torque management kicks in. My '03 Z lays down bigtime inbetween shifts from TM. It has never been a big issue on my '99.
into 4th and doesn't lay down so much for Torque Mangement 
"As a matter of course, I now delete it all together on any car but have only seen a difference on A4's"
Mikey, why delete it on M6's if it has no effect via timing tables at the track/street? I didn't include the dyno because you can't powershift on the dyno.
Mikey, why delete it on M6's if it has no effect via timing tables at the track/street? I didn't include the dyno because you can't powershift on the dyno.
They restrict oil to the rockers only. One end of the tube is die formed solid then a wire EDM is used to put a .030" hole in this end. This end goes towards the lifter and restricts the oil up the pushrod. This maintains oil above the plunger and keeps the lifter from "pumping up".. I have sold a few sets to engine builders for the LS1's. We have made hundreds of sets for the 5.0 Mustang guys.
Cstraub
Cstraub
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Originally Posted by Viper
"As a matter of course, I now delete it all together on any car but have only seen a difference on A4's"
Mikey, why delete it on M6's if it has no effect via timing tables at the track/street? I didn't include the dyno because you can't powershift on the dyno.
Mikey, why delete it on M6's if it has no effect via timing tables at the track/street? I didn't include the dyno because you can't powershift on the dyno.
Mike what did you use to check the timing on the runs? When you say you saw no timing retard was it still using the max timing in the computer? Maybe TQ management is used only in certain conditions?
I am not on anybodies side on this matter its just for personal information and Mike has been to the track more times this season that I will in a lifetime I bet.
I am not on anybodies side on this matter its just for personal information and Mike has been to the track more times this season that I will in a lifetime I bet.
Tis' the season huh pal?
I'm not starting **** with you Mikey, I merely asked a question. Sorry to get your underwear in a bunch, I was just curious. This is not a thread about torque management. I too have issues with a package from JPR but I'm not airing them here. And yes I read the thread.
Have a great holiday.
I'm not starting **** with you Mikey, I merely asked a question. Sorry to get your underwear in a bunch, I was just curious. This is not a thread about torque management. I too have issues with a package from JPR but I'm not airing them here. And yes I read the thread.
Have a great holiday.
Originally Posted by 9T9BlueTA
Mike what did you use to check the timing on the runs? When you say you saw no timing retard was it still using the max timing in the computer? Maybe TQ management is used only in certain conditions?
I am not on anybodies side on this matter its just for personal information and Mike has been to the track more times this season that I will in a lifetime I bet.
I am not on anybodies side on this matter its just for personal information and Mike has been to the track more times this season that I will in a lifetime I bet.
) HA!!! Check this out. My car was originally an M6. Well guess what? I just looked at my tune and there are still stock values in the TR tab. Imagine that, 9.65 @ 139.21 with TR! Guess it should runs 8's without eh?
Originally Posted by 9T9BlueTA
Launching!
Joined: Jul 2002
Posts: 260
Likes: 6
From: Pittsburgh, PA
9T9BlueTA,
The way that guy talks about his car on that efilive site makes me think it is an automatic. He says "the transmission downshifts to first" and "as the PCM calls the tranny to upshift to second"
The way he speaks reinforces Mike's point that torque management is a (significant) factor in A4 cars, but he does not address M6 cars.
This thead has taken me a half hour to read, but I am a slow reader.
Merry Christmas to all,
Matt
The way that guy talks about his car on that efilive site makes me think it is an automatic. He says "the transmission downshifts to first" and "as the PCM calls the tranny to upshift to second"
The way he speaks reinforces Mike's point that torque management is a (significant) factor in A4 cars, but he does not address M6 cars.
This thead has taken me a half hour to read, but I am a slow reader.
Merry Christmas to all,
Matt
I wanted to let everyone know what a good guy Mike is. Here is what he has done for me, in spite of the fact I have given him alot of ****:
1.) Analyzed my dyno graphs to help diagnose the problems.
2.) Offered to leakdown and replace the ARE shortblock if needed.
3.) Offered me a sweetheart of a deal on a Rapid H/C package if I want it.
1.) Analyzed my dyno graphs to help diagnose the problems.
2.) Offered to leakdown and replace the ARE shortblock if needed.
3.) Offered me a sweetheart of a deal on a Rapid H/C package if I want it.
Originally Posted by BADSS
I wanted to let everyone know what a good guy Mike is. Here is what he has done for me, in spite of the fact I have given him alot of ****:
1.) Analyzed my dyno graphs to help diagnose the problems.
2.) Offered to leakdown and replace the ARE shortblock if needed.
3.) Offered me a sweetheart of a deal on a Rapid H/C package if I want it.
1.) Analyzed my dyno graphs to help diagnose the problems.
2.) Offered to leakdown and replace the ARE shortblock if needed.
3.) Offered me a sweetheart of a deal on a Rapid H/C package if I want it.
If I was you... I'd jump all over #3, that will cure what ills you.
Originally Posted by gomer
If I was you... I'd jump all over #3, that will cure what ills you.
