Do I need roller rockers for my build?
#1
Do I need roller rockers for my build?
Hi everyone,
" Do I need roller rockers for my build? "
I recently had to rebuild my build, if you catch my drift. The mistakes were made by me, just to clear the air. Any way this is what I've got.
1) 95" twin cam
2) 10.4:1 compression
3) ported heads with over 180+ PSI valve seat spring pressure. 1.90" intake valve/ 1.63" exhaust
4) cams .580/.530 lift.
5) stock lifters
If anything else is relevent to this question, please let me know. I'm kind of an idiot.
thanks
" Do I need roller rockers for my build? "
I recently had to rebuild my build, if you catch my drift. The mistakes were made by me, just to clear the air. Any way this is what I've got.
1) 95" twin cam
2) 10.4:1 compression
3) ported heads with over 180+ PSI valve seat spring pressure. 1.90" intake valve/ 1.63" exhaust
4) cams .580/.530 lift.
5) stock lifters
If anything else is relevent to this question, please let me know. I'm kind of an idiot.
thanks
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Food for thought, is that Harley now offers 1.725 non-rollers for on the cheap. I believe they are under 200.00.
Those will make your engine think that you changed the cam, and if the OE hammers have shown good service for the past 30,000, give 'em a whirl.
Scott
Those will make your engine think that you changed the cam, and if the OE hammers have shown good service for the past 30,000, give 'em a whirl.
Scott
__________________
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
HILLSIDE MOTORCYCLE & MACHINE, INC.
HARLEY-DAVIDSON SPEED & SERVICE CENTER
5225 SOUTH MAIN ST., MUNNSVILLE, N.Y. 13409
Sales/Support 315-495-6650
www.hillsidecycle.com
Walk-in Retail Showroom
Complete H-D Machine Shop
Case & cylinder boring
Complete Cylinder Head Shop
High-Performance Engine Kits
Crank Rebuilding
Direct Link & PowerVision Tuning
Goodson HD Tooling Manufacturer
Maxton Mile World Record
4500 sq ft. facility
OVER 35 YEARS OF H-D ENGINE BUILDING.
See us on Facebook.
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#8
I don't understand all that ratio stuff and how it effects the actual lift on the valve end. I won't have any issues with the valve/piston clearance. I won't have issues with the valve/valve clearance either. I've checked that. I know that my motor is breathing very well already from the last build at 1.625 ratio. Am I really going to gain all that much going to 1.7?
PS...my brother is sending me some stock rockers with 9000 miles on them on Friday. I'm going to inspect them and compare them to my 30,000 mile rockers.
I'm still considering the rollers though.