piston and sleeve repinch

[Tmaxx96]

is it a good idea or should i wait and just get a new engine :\ I'm not sure any info is appreciated i thinking abou this guy doing it rayaracing.com is he good if not who else does it ?

 

[Suicide]

what engine do you have. if its a 2.5 or 3.3 just wait and use the erp to get a new motor

 

[Racer 1966]

If the sleeve/piston are in good shape, do a pinch. Our own Olds97_ss has reported good experiences with rayaracing.

 

[Tmaxx96]

what engine do you have. if its a 2.5 or 3.3 just wait and use the erp to get a new motor

DONT HAVE that much moey sorry caps lock was on

If the sleeve/piston are in good shape, do a pinch. Our own Olds97_ss has reported good experiences with rayaracing.

yah there is good shape it just needs more compressin should i get a medium pinch or a tight pinch? I'm thinking tight wbu

 

[traxxas t-maxx]

What do you guys mean pinching?

 

[olds97_lss]

What do you guys mean pinching?

Follow the link below!

should i get a medium pinch or a tight pinch? I'm thinking tight wbu

I'd say medium pinch. The "medium" that he does is just perfect for pull-roto starts. Tight enough that you need a few cycle tanks through it to loosen it up, loose enough that you don't swear to holy heaven about it!

Ray does good work if he's still doing it.
Here's my rave again:
https://www.rcnitrotalk.com/forum/showthread.php?t=56420

$25 to get some more life out of it.

 

[Tmaxx96]

are the pinches you got the medium the look extremly tight

 

[olds97_lss]

All of them medium. I didn't push the pistons as far as I could for fear of damaging things since I'm not able to push them perfectly centered with my thumb. That was as far as I could get them comfortably... and I do have big thumbs!

Tightness of a pinch isn't really related to how far down the sleeve the pinch goes. Having pinch that goes beyond the intake/exhaust ports is pointless friction that wastes power. The pinch on the three I had you could feel right at the top of the highest port. I was able to push past that a bit.

 

[Tmaxx96]

ok so meadium is the pinch i should get !!!~!

 

[kswiencki]

I've never really had any luck with pinching.. I've only been able to get a few tanks out of a pinch.. good if your in the field.. or your between races.

 

[olds97_lss]

I've never really had any luck with pinching.. I've only been able to get a few tanks out of a pinch.. good if your in the field.. or your between races.

Who did the pinch?

I have probably 4+ gallons on a re-pinch that OSRocket did for me years ago in an old OS21RG. He overpinched a bit though.

The mach and XTM that ray did both have more than a gallon through them since the pinch and still run great with good compression.

 

[Suicide]

How do you repinch a motor?

 

[olds97_lss]

Send it to www.rayaracing.com

Or if you want to know, go to that site and look around. They explain it pretty good.