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Old 10-24-2019, 08:58 PM
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https://www.gpengine.world/product/17/93
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Old 11-20-2019, 03:25 PM
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Any suggestions on exhaust for this? (The 76)

Going to pick one up soon. Wondering if a 2 in 1 with can is more/less restrictive. Was thinking pipes but may not have the room and kinda spendy.

Thanks
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Old 11-20-2019, 05:05 PM
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If you can handle the noise stock mufflers are the way to go for best power. Next best twin pipes or canisters.Two into one will always cut the power some what.Your funneling both cylinders exhaust into one collector.
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Old 11-20-2019, 06:03 PM
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Gettin better 1 [email protected] a time!
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Joe Lewis chimed in a while back on this thread that exhaust options were coming. Any further word on this?
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Old 12-07-2019, 10:57 AM
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Im building a 73" pitts challenger with one of these if someone could give me any pointers/pitfalls with this motor.
My plan is to run and break it in with ethanol free fuel and redline oil at 40:1 any reason to do the first few tanks at a higher oil ratio?

Ill be using the stock mufflers any mounting concerns? Are the stock gaskets good? Anything you reccomend to keep them tight?

Is the prop bolt pattern the same as the da70 and 60?

What material are people using to make air baffles?
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Last edited by scooby61; 12-07-2019 at 12:48 PM.
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Old 12-07-2019, 02:50 PM
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Sorry for all the questions last time i built a gasser was 2002 and a lot has changed since then
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Old 12-07-2019, 03:17 PM
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40:1 is just fine from start to finish.If you want no trouble with loose muffler bolts,use the stainless Nord-Loks,they are just a little smaller and fit into the muffler bolt holes.Just google them to find.Same bolt pattern as any four bolt prop hub.You can find the baffle material at any craft store,use the1/4" black hobby foam,and medium CA.
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Old 12-07-2019, 05:36 PM
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Quote:
Originally Posted by closetguy View Post
40:1 is just fine from start to finish.If you want no trouble with loose muffler bolts,use the stainless Nord-Loks,they are just a little smaller and fit into the muffler bolt holes.Just google them to find.Same bolt pattern as any four bolt prop hub.You can find the baffle material at any craft store,use the1/4" black hobby foam,and medium CA.
Thanks
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Old 12-07-2019, 07:47 PM
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Quote:
Originally Posted by closetguy View Post
40:1 is just fine from start to finish.If you want no trouble with loose muffler bolts,use the stainless Nord-Loks,they are just a little smaller and fit into the muffler bolt holes.Just google them to find.Same bolt pattern as any four bolt prop hub.You can find the baffle material at any craft store,use the1/4" black hobby foam,and medium CA.
Most Nord-Lock washers (stainless and zinc plated) are available in two different OD sizes, not just the stainless ones.
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Old 12-28-2019, 08:12 PM
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Header options are coming soon to the U.S
Any update to these headers options?
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Old 12-29-2019, 10:05 AM
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How is the midrange on the 76? Is it clean like the DA 70 or is it more like the 123? I know the 76 has more power but i have 3 DA 70’s that run so good its hard to justify making the switch.
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Old 12-30-2019, 11:56 PM
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My motor came with 4 exhaust bolts 4 prop bolts and 4 lock washers. I have nord locks for the exhaust. Should i use lock washers on the prop bolts? When i did gassers years ago we just used blue threadlock and tourqed them in.
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Old 12-31-2019, 06:50 AM
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Just my .02 cents i never use loctite on prop bolts. Make sure they are long enough and use a lockwasher if anything!
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Old 01-25-2020, 01:44 PM
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The back end of the ball link on my throttle is catching on the throttle arm. Not enough clearance from the muffler to stand it off there. Any suggestions? I can i suppose get a lo ger bolt and move it out on the servo arm end or shim the servo out in the mount 2-3 mm.
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Old 01-25-2020, 01:46 PM
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I noticed that the throttle arm has two places for the little screw to sit that adjusts the throttle arm position. Any reason or issues with moving that?
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