April 19, 2024, 03:56:39 PM
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General / Re: Throttle body flow rates
Last post by wfolarry - April 13, 2024, 05:26:53 AMWhat do your heads flow? If you have big flowing heads then a bigger throttle body would help. If they're early heads you're probably at their limit.
I don't remember exactly what that combo would flow but for reference a 51 with a 1.710 would flow 275. That was my go to for 95" motors.
Back then bigger TB's just made for a bigger top end. Drivability was terrible. I'd talk to a tuner about your setup & see what he says.
I don't remember exactly what that combo would flow but for reference a 51 with a 1.710 would flow 275. That was my go to for 95" motors.
Back then bigger TB's just made for a bigger top end. Drivability was terrible. I'd talk to a tuner about your setup & see what he says.
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General / Re: Throttle body flow rates
Last post by Coff 06 - April 12, 2024, 06:41:19 PMIs it a one piece? Or could you change out just the intake manifold?
Maybe a later model might increase your flow rate a little.
Coff 06
Maybe a later model might increase your flow rate a little.
Coff 06
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General / Re: Throttle body flow rates
Last post by Deye76 - April 12, 2024, 06:01:04 PMIf you can find it, Mike Roland did some excellent testing on TB size, here on HTT. Been awhile though.
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General / Re: Throttle body flow rates
Last post by itsafatboy - April 12, 2024, 05:56:26 PMi really dont think its a bottle neck i just have seen how times have changed and seems bigger is better on throttle bodies but maybe im seeing it wrong , im staying with the 53 i have dont think bang for buck would be worth it
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Evo Sportster / Re: Sporty upgrades?
Last post by Shep236 - April 12, 2024, 05:08:22 PMThanks for the replies. So it looks like the 04 and on heads will work with my lower end..
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Twin Cam / Evolution Industries comp spri...
Last post by 319fatboy - April 12, 2024, 05:02:22 PMHas anyone used the evolution industries compensator spring kit? I have the SE comp and I was wondering if this kit would be quieter yet.
97
Evo Sportster / Re: Sporty upgrades?
Last post by Hossamania - April 12, 2024, 02:39:24 PM98
General / Re: Throttle body flow rates
Last post by Ohio HD - April 12, 2024, 02:35:27 PMI guess I would start by trying to understand if your TB is a bottleneck or not. Who ever tuned it would be the best person to ask that.
Also the SE58mm TB moves some decent air. Below is the dyno sheet for the 117" that No Cents built, making 136 horsepower and 127 torque. That motor ran great, I know because I put about 40k miles on it. I've also seen 124" motors make decent power with the SE58mm.
A larger TB may add some torque and HP in the curve, but I doubt it would raise the HP or torque totals unless the TB you have is restrictive.
Also the SE58mm TB moves some decent air. Below is the dyno sheet for the 117" that No Cents built, making 136 horsepower and 127 torque. That motor ran great, I know because I put about 40k miles on it. I've also seen 124" motors make decent power with the SE58mm.
A larger TB may add some torque and HP in the curve, but I doubt it would raise the HP or torque totals unless the TB you have is restrictive.
99
Twin Cam / Re: Evolution Aluminum Pulley
Last post by Coff 06 - April 12, 2024, 02:35:19 PMI'm not advocating for the belt over chain.That being said,
There's successful Harley drag racers out there still using belts.
Coff 06
There's successful Harley drag racers out there still using belts.
Coff 06
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