2.5r to 3.3 trans prob.

[widowmaker]

hey guys i had a 2.5r and put a new 3.3 on it now it wont shift i tryed another trans same thing no shifting tryed to adjust both and nothing the 3.3 is tuned grate the rpms get way to high afraid of blowing this new motor i have had 3.3 with the black trans before with on prob,do the new 3.3 have so much that the old trans can't hang nomore lol thanks

 

[SchrodeMode]

Have you checked the slipper, if it's slipping too much the trans won't realize the RPMs being put out.

 

[widowmaker]

yea tightened it all the way down just to check if it was the prob and nothing

 

[nikko508]

Make sure the trans is clean on the inside ie: no oil, grease or dirt sometimes the shift shoe gets stuck do to contaminants

 

[widowmaker]

i opened one looks good inside shifted fine with the 2.5 on it just dont get how two trans would do the same thing

 

[nikko508]

Only thing I can think of is that your running to rich

 

[DG40]

Had the same problem after replacing a gear in the trans.
Couldn't believe tightening the slipper fixed it.

Cranked it all the way down then backed it off about 30-45 degrees. problem gone.

 

[Grave]

I have the MAXX 2.5 myself & I thought if you drop in the 3.3 powerplant you would have to use the MAXX's 3.3 Trans. For the fact the 2.5's trans can't handle the upgraded power

 

[2revo1maxx]

The black trans can handle a 3.3 just fine.

 

[MudSlinger33]

^^Yep, I'm running a 3.3 on my classic maxx with the black trans and reverse, no issues.

 

[2revo1maxx]

It is wise to use all the slipper pegs or upgrade the slipper.