Z's HPI Baja PT:2

[DougStar]

?I wonder why that aluminum isolator works good but the rbmod isolator sucks?

The Teflon gasket are shite?? obr has a hard plastic composite insulator alloy manifold and real gaskets?? these other ones have the Teflon ? and it dose not seal right ?? if you over torque the teflon squeezes out?

 

[Z.hb71]

The Teflon gasket are shite?? obr has a hard plastic composite insulator alloy manifold and real gaskets?? these other ones have the Teflon ? and it dose not seal right ?? if you over torque the teflon squeezes out?

? I was running the Teflon with my obr manifold, zero issues. Idk what ur going on about ?

 

[DougStar]

white ???‍

 

[Z.hb71]

white ???‍

Yep. No issues at all, not warped even a little.

 

[1Coopgt]

Aluminum absorbs heat ,an stays hot until the heat source is shut off ,it heats up faster an cools off faster is all!

Aluminum was primarily used for a light weight durable material!

We use aluminum fins on some of our radios for cooling . The key is you need air flowing over the fins to cool them. Motorcycle manufactures have been using aluminum Cylinder heads for years on air cooled engines with fins.

 

[21bangbang]

I don't get how in the same thread the obr isolater block was called good, but the RB one bad. No way the fins would make it worse. Has anyone used the RB one?

 

[cbaker65]

We use aluminum fins on some of our radios for cooling . The key is you need air flowing over the fins to cool them. Motorcycle manufactures have been using aluminum Cylinder heads for years on air cooled engines with fins.

Did not know that ,I was born yesterday!...

 

[crucialRC]

I don't get how in the same thread the obr isolater block was called good, but the RB one bad. No way the fins would make it worse. Has anyone used the RB one?

I've used the rbmods one and can send it to you if you would like to try it. All I can say is it didnt work for me and my Losi 5b.

 

[DougStar]

I ran my 5b hard yesterday with my stock iso block ??ran flawlessly ?? don't need them alloy ones?

I've used the rbmods one and can send it to you if you would like to try it. All I can say is it didnt work for me and my Losi 5b.

 

[Z.hb71]

I ran my 5b hard yesterday with my stock iso block ??ran flawlessly ?? don't need them alloy ones?

I'd rather have alloy because they will never warp. I'll run this plastic for a bit, but I will be going back to aluminum

 

[cbaker65]

I'd rather have alloy because they will never warp. I'll run this plastic for a bit, but I will be going back to aluminum

Maybe I might try aluminum an see what they are about ,I never had one ,but messing with these cheap engines ,I guess
they use the cheap plastic or wanna-be carbon ones ,I know back in the day ,they didnt use that cheap shiton these 2 stroke
engines!
I will take a pic of a old school one here in a minute ,I just came across it in my stash!....

 

[Seandonato73]

I have a alloy one since I ported my zen g320. Hasn't been an issue. With the teflon gaskets. It's not the rb one though, tbh I wouldnt buy ? from them. Only reason I went alloy was the plastic one was too thin once I had it ground for port matching. Also I'll note that there are many, many 2 strokes that use alloy manifolds with great success. But I'll admit we here on this forum do seem to have issues with then from time to time.

 

[Z.hb71]

Cylinder and stuff looks good, can't see any damage thru the ports or spark plug hole. But should I still pop the top end off (get a new gasket) and check it out to make sure there ain't no poop in there?

 

[misterleon]

I don't get how in the same thread the obr isolater block was called good, but the RB one bad. No way the fins would make it worse. Has anyone used the RB one?

had it. got almost instant heat soak in the carb. threw it in the trash after 1 run

 

[Z.hb71]

Tbh I wouldnt buy ? from them.

+1 All their crap is all gimmicky stuff that's fixing problems that don't exist ?

 

[Seandonato73]

Or boosting a 2 stroke ??

 

[Z.hb71]

Cylinder and stuff looks good, can't see any damage thru the ports or spark plug hole. But should I still pop the top end off (get a new gasket) and check it out to make sure there ain't no poop in there?

 

[Seandonato73]

If your that worried about it you'd need a full tear down. New bearings, ring, gaskets, and seals. How it spin over (by hand) with the plug out? Nice and smooth? Still have good compression? How about the cylinder have any dulled out looking spots?

 

[Z.hb71]

If your that worried about it you'd need a full tear down. New bearings, ring, gaskets, and seals. How it spin over (by hand) with the plug out? Nice and smooth? Still have good compression? How about the cylinder have any dulled out looking spots?

Spins over fine, compression is just like it has always been, there's no spots or anything in the bore that I can see.

 

[Seandonato73]

Run it