Go .21 Engines

[Marty Davis]

Interested to hear how people have liked the Go Engines for the .21 class. Got a great report from John Knight.

Which engine do you like, how much nitro do you run, how many gallons of fuel through the engine?

 

[HTV Boats]

Marty,

We tested a 5 and a 7 port GO outboard last year and wound up keeping the 5 port. For whatever reason it was faster. On the same boat with same carb and pipe it was about .2 seconds off a Drake/Nova Jay has which was good considering the only mod was Mark Leyde cut the exhaust up to 184 degrees. Both ran mid 13's on a Lynx tunnel. Piston liner and rod come as a set for under $80 and slip right in the Nova case. On my bench now as Nova self destructed.Even the rod looks identical to the Nova. Probably have just under 2 gallons of 60% through the GO and it runs good as new.

Mic

 

[Mike Larson]

Marty.... Rodney Pierce has done extensive work on quite a few.... ( we tested a bit this summer)... he's honed done on some timing areas, built me a great replacement hydro engine, and they will hang with any Italian plant out there... tested in b hydro and sport 20 to date, they work, hang tough and the cost is right, too.... all his are the black case marine 5 or 7 port ( no discernable gain or loss i saw) Mark Leyde and his knowledge on the dynamics along with selling them, will easily gain ya what you seek.... e mail them... Mike

 

[gil sonsino]

Marty

I've been running the 7 ports on a Jae with very good results.Lot of torque and good rpm make the Go engine a good contender at a low budget.Run it with 40% nitro using a carbon fibre pipe for almost three months every weekend and the Go is in great conditions pushing 1450(full blade) prop effortelessly.What I would like to mention is that the engine I got was very,very tight so the break in took me time and paid off.....now with a head clearance of 0.10 I can compete in the same level of other famous brands.The only mod I did was in the carb to get bigger bore and a shim under the sleeve to raise timing a little bit.

Gill

 

[RodneyPierce]

Marty, love the GO's. Its actually all I run for .21 inboard motors. I prefer the 5 port over the 7, just because of the shape of the exhaust port itself. Other then that, the motors are identical. Best running engine to date for me was in a sport 20. 56mph consistently once the needle was found. That figure was from a GPS. I prefer the timing at about 125 ish transfers, 184 exhaust. Then mod the induction window on the crank to close at 65* after. Custom button, .19cc, .007 clearance, 1* squish. Motor just keeps on going and going. I will say, they are EXTREMELY tight! Tightest motor I have ever had to break in, ever. I just picked up another 2 complete motors from Mark Leyde (they are newer timed engines, setting at 130 transfers, 182 exhaust. Im going to try them there, as mark has actually had very good success right out of the box running them with these new numbers. Which you would season to your own taste im assuming) You wont be disappointed in them.

 

[Kevin Krogness]

Love my go! Mark set mine up. 008 not sure of the timing numbers but still tight and bearings feel great! !! I have the turbo 7 portand with about 1 and a half gallons of 60% through it running a nova carb...

 

[Tim leyde]

I know Mark has a zoom carb on his Mod tunnel. What a ROCKET!

Mitch, his son has one in a speedmaster mono ( stock carbon ). It just keeps gettting better as its breaking in. Came over the finish line at the last race of the year before a extremely dialed in speedmaster/CMB combo.

I will be putting one in my whip without a doubt!

TL