should a 4mm ported motor have more than 63 hp

[banshee11]

i have 35 pwks and i have it jetted right know 55 pilot dek needle , and 155 main and also tried 165 and no dyno change. tried 165 fisrt and them the 155 and no change.

[dajogejr]

What did the fuel/air ratio read??
It could be no change because it's still WAY too fat...

[wesw]

i think he went to a dyno that didnt have a sniffer.

what dyno did you go to there is one or a couple in michigan that are beyond low reading ones.

will say buddy has similar motor to your and its hold it own at the dunes. some times its a bit much for a 4 over swinger.

[banshee11]

i went to rb racing no sniffer. my motor in not to much for a plus 4 unless it is jetted way fat yet. what do you think, were do i start or what do i change. i was told 55 pilot was fine,, and like a 150 or 152 main.

[banshee11]

i was told by another builder his dyno was on the money. my motor will not beat 450 4 pokes and he said it should

[superevil]

If your not happy with the power,i wouldnt care if the dyno said 200hp.
If it ain fast it doesnt matter what the dyno says

[dajogejr]

Hold up on that car wash Gentlemen...
Just because the motor is capable of beating a 450, doesn't mean the chassis, setup or rider is.

[370banshee]

Originally Posted by dajogejr

Hold up on that car wash Gentlemen...
Just because the motor is capable of beating a 450, doesn't mean the chassis, setup or rider is.

daves right... and a common problem with these higher revvng strokers is shift issues....

[banshee11]

just did a compression check and if my gauge is right and its new it read 100 in both cylinders

[370banshee]

damn if it made 63rwhp with 100lbs compression u'll be looking good when the compression is up in the 170 range... my stock cyl stroker runs 180psi all day long with a 21cc dome...