Russell,

I have been noticing a lot more of the 8.5's winning races lately. Might be time to take a closer look.

Colin

Colin next time I see you at the track I will let you take it for a spin, its a lot of fun to drive, it accelerates like the Losi but can be pushed harder.

I will second that, I started running an 8.5 from a losi and I can accelerate away from anyone (with a stock 3prt).. car is very stable and can be driven easy or hard

Must be that Go Tech power!

so russ Mine just came with one shim installed and 1 shim in a bag in the box. That is correct right?

Grudinger there should be 2-3 shims installed and 1 in a bag in the box. It should have .3-.4mm of shims included, if you need some shims please let me know.

Russel it seems that GO has some issues on quality control on these engines.
Although they do seem to correct issues like carb leaks and such but i have read all posts for these engines and i never found a post that backs up the previous one.
Opinions on head clearance fly everywhere and i believe we need a post with GO engines line up and their correct head shims and clearance no matter what shims the engine has in the box because i believe the number of shims might be a wrong from the engine assembly and packaging.

RUSSELL

thanks for the help this weekend with motor and letting me borrow a motor to run since mine didnt want to race this weekend. i will be placing an order with you soon for a new motor. for my truggy/buggy i will let you know more soon on what one. thnx again will g

holy cows the 3port race is one of the sickest engines ive ever seen!!!!!!!

Come on jason a little more info

is it awsome Jason

Here is what i can tell you from looking at the motor apart. The exaust is done the way i was hoping, it's not closed off like a stock 3 sport motor. The crank is cut very clean, the inside of the case is very nice as well. The machine work resembles trhe 5 and 7, releived boost port in the case, and the sleeve is very nice as well, nice big transfers and boost with the 2 bypass ports, the cooling head is very nice, and the cuts in it look just like the 7 ports, the 5 ports will have the same cuts as the 7 as well. if i get a chance i will be breaking this bad little red head in this weekend. And of course it's a TURBO This is what i will start off with for breakin and testing.

GO 3 port RACE SPEC 8mm insert, STOCK
GO 2047
Rocket Science 30%
OS P3
RC8, with all 1.0 and M2C Hard Standard shoes

Just to let you Go Lovers know that there is now a Go Engine thread in the Australian racing for all Ozzy Go Engine lovers !

Cheers MM

http://rctech.net/forum/showthread.php?t=199789

Vti-chris, I am not sure what you mean. The factory has made a few changes to the heads and deck ht. reccomendations do vary from location to location. Since I have been importing the engines there have been only 3 deck ht. changes. The first batch included 3 shims with a total width of .5mm, They then added .2mm into the button and removed 1 shim. so the overall squish was the same but the engine only had 2 shims with a width of .3mm. The final change is recent and they added 1 shim so the shim width is now .4mm and they include a extra shim for break in, but that is up to you if you wish to use it. The last change was to increase reliability by making the engines easier to tune and also lowering the risk of detonation because they were at the min. deck ht. for 30% nitro.

There were very few of the original deck ht. engines sold in the U.S. and all of them had the original alumn. carb. I currently run the middle deck ht. engines and have never had a problem, but a few people had experienced blowing an few plugs during break in because of the deck ht. I haven't had a single complaint from the latest batch.