Not sure what you mean....yes, this is the new pipe...the header is conical.

Can you guys tell me where I can get this LRP 2644 pipe in the US, or can you tell me if if performs in the same way as the Picco 2607

The problem is the pipe does not fit with the header because they have the same measure!! The rigth end of the pipe, where whe put those small springs, shold be smaller than the header, but they are equall

I'll take a pic of mine tonight and post it for you guys...

2644 Vs 2607 = no contest

Anyone has an inside look of spec 4 engine?

So much good talk about it.

I'll take a pic of mine tonight and post it for you guys...

And in your opinion, which one is better...

the 2644 without a shadow of a doubt Scott

Luis, are you comparing with the Picco 2607 pipe?

Yes Tommy

I'm kind of curious as well which pipe he means is best. Of course I'm still running the JL Red dot which is somewhat diffrent then the evo 3 and now evo 4 generation motors. I'm sure the differences in crankbore will have alot to do with which pipe works best with each generation motor.

Can someone tell me what is the size of the LRP Spec3 O-ring on the HS needle

I am looking for replacements before season starts

Thanks

part # 51402 same as for the JL's

I believe AE offers an o'ring kit for this engine. It maybe rather hard find that size o'ring outside the rc industry. Not sure of the size.

Hi guys, sorry to post this question here but I just can't find a proper thread for this.

I recently acquired a NOSRAM RS12 SPEED as a backup engine for my RB V12 Rody. I just want to know which LRP Spec is this comparable to? By the way, It says " SPECIAL" on the box if that helps at all..

Thanks in advance..