M&H Racemaster slicks

[68skylark455]

Are they any good? went to the track and basically just spun thru the 1/8th.
60ft times sucked, 1/8th wasn't much better.
2.3 to 2.6 60ft
8.77, 8.85, and 8.90
ran a on/off full throttle run pedalling in the 1/4 of 13.26@110mph wtf!!??
need traction and I guess I need to get the tune set to spool up quicker-kinda medium to hard pull of the line from a 2000rpm brake until just after the 60ft and WHAM the turbo kicks in all 4 tires light and it sits you back like a sledge hammer hit you-but I still have to pedal and tap the brake to keep it from spinning. I know with the speed it should have run a low 12 and if we get the traction/pulling sooner it will be low 11's. Maybe, eventually a 10.90 thats what I am shooting for anyways.
Any help from those more expirenced wolud be great-
And did I mention I was scared stiff and shaking because I didn't want to break this guys truck--he didn't get to show up so I had to do it-All I kept seeing was dollar signs blowing up:rofl:
Thanks, larry

 

[Josh2002cc]

10.9? That is all you are shooting for?

 

[TrentNell]

what psi were you launching at ? on edit it says 2000 it sounds like your leaving under the charger , and on the traction i need some help to with 60 ft tuning and traction. but in order to stay on top of the turbo a higher stall launch will be needed but as with myself if i launch higher traction gets worse , i think mine is from overfueling at launch if i watch vids i can see right after my launch the speed that the smoke is coming at drops and then picks up again and clears out . my 1/8 mile has always been weak compared to my 1/4 .

 

[68skylark455]

unfortunately being by myself I didn't even get to log anything-I was very unprepared. I basically went to test the launch and the 1/8th times but it spun so bad I couldn't get a handle on it be useful. All I can go by is feel, sorry. I just felt like it should have launched better and the turbo kick in sooner. I am going to play with the tune and shift points and hopefully take it out again in 2 weeks with a co-pilot to log some info. It has 35" bfg mud terrains on it and I was looking for the best slicks to run on the back with some good street tires on the front.

 

[68skylark455]

10.9? That is all you are shooting for?

Not my truck, customer wants to run in the 7's in the 1/8th.

 

[MAXLLY]

not really a bad problem to have... traction that is.

Haven't heard of anybody having issue with the M&H slicks. I can share with you the taller the slick the deeper the tire patch, most lean towards the shorter tires for a better 60'. If your blowin 'em out on the charger, think about a taller slick, IMO you need more "patch" not more "quick". Sounds like the charger will overcome the leverage/weight. Hoosier is making a 34" slick for a 16" rim IIRC, plenty of sidewall in that size to soften things up a little.

Good luck!

Wouldn't suggest slicks out back and streets up front.

 

[TrentNell]

unfortunately being by myself I didn't even get to log anything-I was very unprepared. I basically went to test the launch and the 1/8th times but it spun so bad I couldn't get a handle on it be useful. All I can go by is feel, sorry. I just felt like it should have launched better and the turbo kick in sooner. I am going to play with the tune and shift points and hopefully take it out again in 2 weeks with a co-pilot to log some info. It has 35" bfg mud terrains on it and I was looking for the best slicks to run on the back with some good street tires on the front.

gotcha i thought you ran on the slicks def need some logging and a vid really helps , not nec to solve it but sometimes it shows what you cant feel . like if the front is lifting hard , tires toeing in , when the charger lights ect . i will be doing alot of testing on tuning, some front end parts, ect i will let you know if i find some usefull info . my new rear suspension set up helped alot just not quite enough yet before it i was 2.0 to a ocasional 1.8 60ft now most runs were 1.8* and a single 1.74 . but what can expect with a blown rear locker , that is the next fix for me .

 

[68skylark455]

not really a bad problem to have... traction that is.

Haven't heard of anybody having issue with the M&H slicks. I can share with you the taller the slick the deeper the tire patch, most lean towards the shorter tires for a better 60'. If your blowin 'em out on the charger, think about a taller slick, IMO you need more "patch" not more "quick". Sounds like the charger will overcome the leverage/weight. Hoosier is making a 34" slick for a 16" rim IIRC, plenty of sidewall in that size to soften things up a little.

Good luck!

Wouldn't suggest slicks out back and streets up front.

M&H make a 33" I believe its 12" or 15" wide. Should we go slicks all around?
Thought it might get kinda hairy on the top end without a treaded tire.
What about the cal-trac setup. would it help any with traction or is it mainly for looks?

 

[Kat]

Yes, you would want to go slicks all the way around and launch in 4wd

Even the little M & H drag radials would work all the way around and go on stock rims

Here is a whole thread on Drag Radials

http://www.duramaxdiesels.com/forum/showthread.php?t=3559&highlight=drag+radials

Edit PS- I have gone 10.59 in Casper and never once have I felt unsafe.

 

[sweetdiesel]

Is the truck a 4 wheel drive?

 

[LarryJewell]

yes

 

[68skylark455]

Yes, you would want to go slicks all the way around and launch in 4wd

Even the little M & H drag radials would work all the way around and go on stock rims

Here is a whole thread on Drag Radials

http://www.duramaxdiesels.com/forum/showthread.php?t=3559&highlight=drag+radials

Edit PS- I have gone 10.59 in Casper and never once have I felt unsafe.

I launced it in 4 hi. I am starting to believe the trouble I am having is mainly because I am holding back due to the fact its not mine and I can't afford to replace anything I break. I guess in 2 weeks I will try again.

 

[Kat]

I launced it in 4 hi. I am starting to believe the trouble I am having is mainly because I am holding back due to the fact its not mine and I can't afford to replace anything I break. I guess in 2 weeks I will try again.

I can understand your concern. In that case have the owner race it :devil:

 

[68skylark455]

I can understand your concern. In that case have the owner race it :devil:

He is being the good husband and taking care of his wife while she has this nasty flu. It has killed some people this year. scary stuff.
anyway, she should be better soon and i am trying to fine tune everything on the truck. thanks for all the help.

 

[Kat]

He is being the good husband and taking care of his wife while she has this nasty flu. It has killed some people this year. scary stuff.
anyway, she should be better soon and i am trying to fine tune everything on the truck. thanks for all the help.

Hope she gets better soon.

There is even a better idea have her drive it Since we don't care if we break chit, since we don't have to fix it

 

[68skylark455]

Hope she gets better soon.

There is even a better idea have her drive it Since we don't care if we break chit, since we don't have to fix it

I am sure Pat's working his butt off fixing casper while you play on the internet:rofl:I tried to call and no one answered--not fair screening calls:baby:
She prefers her harley. I told her to bring me her escalade so I could supercharge it to compete with his I just finished he tried to tell her the noise was just powersteering fluid being low:rofl:she did't buy it.

 

[68skylark455]

Here is the camaro we sent to the trailer by accident.

 

[Kat]

I am sure Pat's working his butt off fixing casper while you play on the internet:rofl:I tried to call and no one answered--not fair screening calls:baby:
She prefers her harley. I told her to bring me her escalade so I could supercharge it to compete with his I just finished he tried to tell her the noise was just powersteering fluid being low:rofl:she did't buy it.

Nah I just got back in the office. Had to go home so someone could show me how to use my new pool equipment :baby: I will ask Pat the question when he gets back in the office. Just listened to the voice mail.

 

[Dan@PPE]

Larry,

Call me in the AM...