I picked up a pre run 24 with a gallon or so on it from a buddy yesterday....I am putting it in a STRR and plan on using Dyn 86 pipe with a P4 (Trinnity 30% fuel). Is it safe to assume this will be a good starting point? He ran it with JP2, but I really am not a JP pipe fan (even though I have two of them). I also take it the factory needle settings are HSN flush, and LSN slightly in from flush?

You might check your clutch springs and make sure it isnt engaging while your trying to tune...

I found out today that I ended up with one of the EB mod non-modded motors. I took the motor apart to find that my motor has had no changes to any ports or the crank when compared to a stock Extech.

What a rip! Someone didn't do their job !!!

could be the EB mods checked all around /runned-in version
which is not bad..

Didn't you answer your own point above..eb-mod----non modded----??? He did several break ins without any type of mod and put his signature on them...

Now if you paid for the full mod motor...$299.00 I'd be smokin mad also.....

Well Well Well

The saga comes to a close. If have read some of posts then know that I have been through hell and back since nearly day 1. With the help of a good guy from the track and a pro driver my problems are over for now. I turned over all of my rc stuff for some good old wrenching from people who know what they are doing.

The problem. Ramping Putty. It came loose from the crank and turned to soft rubber clogging the entire exhaust. I havent ran it yet but they said its a beast now.

It only took a month but thank god its over. Not sure what cuased it other 5 drops of after run oil one time when it was brand new and had never been turned over.

That's what caused it.

Hey dish, not to say I told you so.....but that's exactly one of the things I told you to look for 3 weeks ago (page 10, post #1590) Glad you got it figured out though. What did they do, just remove the rest of the silicone and rebuild it without any ramping? I ask because that is what I did, and the engine still isn't right. Could be just way off tune now that the primary flow has changed. LMK, thanks!

I also don't mean to say i told you so , but i also said the same thing 3 weeks ago. Oh well glad you got it fixed , i've seen many do it.

So afterrun oil is a no no with these engines?

Yes and Yest. You guys told me so. I am just not skilled enough to tear apart an engine and put back together or what to look for. This is why I dropped it off to someone who knew what they were doing.

They ran 3 full tanks through after tunning it and it runs like a champ now. I hope it continues. Going racing tomorrow so we will see.

I never put aterrun oil in the engine as i ran it twice a week , so i think the afterrun oil thing is a mith. don't know what caused it , but i was told (not by trinity but a fellow racer) the epoxy filler was made too soft.

So is the best solution to just run it without any epoxy?

Thats what I did last night and wow this engine has come alive. Didnt even know what it could do until last night. It was super dialed never flammed out once and power that was ridiculous.

At this moment I will not be sending it away to have it refilled. To me its not worth the headache. Plus I ran a 7 minute B and had over a half tank left!!!!!

Just remember the epoxy also works as a crank balance..the engine was designed to have the putty in it..I have no clue about what the long term effects would be to remove it, but maybe someone from Sirio or Trinity can chime in, or an pro engine guy. I would like to know what the major differences would be, other than longer run times and a more balanced crank