22 replies to this topic

[IronmanG]

Big ports don’t make torque

I that specials components dyno run?

All my cams give less torque than I see on other dynoes. It’s to
Do with the way it’s measured. The main think here is how it drives.

Ac

Interesting you should say that about the ports AC.
For a road head what size ports do you think would be an optimal size? Give or take.

[Aly-g]

Sorry best I can do
85 torques across from 3500 to 6509
106 hp max at 6500

 

now you have made jealous 

 

 

Allan

[Gaz66]

What carbs are you running on the 7 porter?

[IronmanG]

What carbs are you running on the 7 porter?

Injection 👍

[Gaz66]

What carbs are you running on the 7 porter?

Injection 👍

Jenvey's?

[Turbo Phil]

What species of 7 port?

Phil.

[IronmanG]

What species of 7 port?

Phil.

Cast
Aren't you running the billet turbo?

[OzOAP]

40mm throttles are much too big for the rest of the spec, that is what kills the torque.
SC do not seem to be bothered about 'parts compatibility'
Why would they sell you a cam with 0.390 lift when the topcaps hit guide at 0.360?
Also the ACRS+ cam does not need 240lb valve springs!!
106hp @ 6500...and it is still climbing.
Below 5000rpm is has more power at 80% throttle than at 100%. Airspeed is too slow.

Edited by OzOAP, 07 January 2022 - 09:43 PM.