Maximum boost on pump gas

[Mohsen]

Hi guys how is it going


I would like to ask about the boost what is the maximum boost I can reach on SVHO engine on a pump gas ...

I was planing on 23 lbs wheel but the detonation will kill the engine if I go with a pump gas ...

So what is the maximum boost I can go with the pump gas

Thanks .

[YudLuz2]

Anything over a et 19 wheel you are asking for trouble on pump fuel. And with that will you better have the correct afr's good timing curve for pump fuel and have all the needed cooling upgrades with a good quality 92/93 octane fuel.

[Mohsen]

Anything over a et 19 wheel you are asking for trouble on pump fuel. And with that will you better have the correct afr's good timing curve for pump fuel and have all the needed cooling upgrades with a good quality 92/93 octane fuel.

Can I go with the 23 wheel and but the maximum rpm 8000 to produce 19 lbs and stay on the pump gas so I can see more boost on low rpm

[Mohsen]

My point of having a SC wheel that produces more boost. Meaning, it's will created 17,18lbs of boost without going really high with RpMs?

[YudLuz2]

Most timing curves have a increase in timing at lower rpms. Which will make thing go boom quicker by running a lower rpm and putting more load on your motor running a bigger prop. If you are trying to gain acceleration the correct thing to do is smaller wheel and more rpms with less prop. If you want to run a 23 wheel then add some race gas to your setup. That's way cheaper than spending 6 to 7k on a new motor

[txgp1300r]

Most timing curves have a increase in timing at lower rpms. Which will make thing go boom quicker by running a lower rpm and putting more load on your motor running a bigger prop. If you are trying to gain acceleration the correct thing to do is smaller wheel and more rpms with less prop. If you want to run a 23 wheel then add some race gas to your setup. That's way cheaper than spending 6 to 7k on a new motor

You just had a Real Life GURU answer your question !!

[Mohsen]

??

[Mohsen]

Most timing curves have a increase in timing at lower rpms. Which will make thing go boom quicker by running a lower rpm and putting more load on your motor running a bigger prop. If you are trying to gain acceleration the correct thing to do is smaller wheel and more rpms with less prop. If you want to run a 23 wheel then add some race gas to your setup. That's way cheaper than spending 6 to 7k on a new motor

So your advise is to go with smaller wheel and spin more rpm ?

What about the prop do you recommend the twin solas to have better acceleration I dont my if i lose the top end ??

[hotbutta]

ASA. A 12/18 twin prop is good for acceleration but you will need power to turn it.

[Mohsen]

ASA. A 12/18 twin prop is good for acceleration but you will need power to turn it.

I'm going to run 19 lbs wheel plus supporting mods is it enough power ?