Search found 580 matches
- Fri Jun 21, 2013 10:09 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
And is that sufficient for the cam/lifter combo you are using ? Are they just singles ? The thing is that this engine revved to 6k and more with the standard rockers, they were then changed for a set of rollers rockers and now it won't rev. I considered buying the same set at Stoneleigh, glad that ...
- Fri Jun 21, 2013 10:02 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Fri Jun 21, 2013 9:49 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Fri Jun 21, 2013 8:45 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Fri Jun 21, 2013 8:17 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
Valve springs have 75lbs seat pressure and 200lbs at a lift of 12.7mm. They were sourced from real steel. The springs have been in there since September 2009 and I have done a total of 6000 miles about 2000 miles on track, 4000 on road. Picture from my build diary: http://www.westfield-build.com/ima...
- Fri Jun 21, 2013 8:05 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Wed Jun 19, 2013 8:38 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
Hi They could well be SBC rockers "repurposed" for the rover engine, in which case they very well could be 1.5-1.55:1 ratio. Best regards Mike Noooo, I don't want to be hearing that! Yes I can adjust the push rod or rocker. I adjusted the rockers tonight. The thread pitch means one turn = 40 thou s...
- Wed Jun 19, 2013 1:14 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Mon Jun 17, 2013 9:39 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
- Mon Jun 17, 2013 9:32 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
I'd drop the pre-load down to 20-25 thou! If you are using adjustable pushrods just tweak them up so that is no preload AND no play then turn the adjuster 4 'flats' of the nut then lock them off at that. They are adjustable push rods. I spent an awful long time adjusting them and the rocker arm adj...
- Mon Jun 17, 2013 8:47 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
Thanks for the replies. I did this as an upgrade! :D Anyway I do mean pre-load. Heavier possibly when I think about it, the OEM ones are ali and this are squarer and have adjusters built it so could be. Ironically I thought I would be able to increase RPM as my max power could be around 6200RPM. I s...
- Sun Jun 16, 2013 2:15 pm
- Forum: Engines Area
- Topic: Ability to rev reduced after installing roller rockers
- Replies: 31
- Views: 15725
Ability to rev reduced after installing roller rockers
So I have installed my roller rockers and increased my RPM limit from 6000 to 6500. However I am a little disappointed. Previously on the standard rockers I could accelerate right up the 6000 without any sign of let up. Now I accelerate and power seems to be down and starts backing off around 5600 a...
- Sun May 12, 2013 9:07 pm
- Forum: Engines Area
- Topic: RV8 - Installation of Kenne Bell Rollers - Questions
- Replies: 35
- Views: 23672
- Sun May 12, 2013 8:11 pm
- Forum: Engines Area
- Topic: RV8 - Installation of Kenne Bell Rollers - Questions
- Replies: 35
- Views: 23672
- Sun May 12, 2013 6:49 pm
- Forum: Engines Area
- Topic: RV8 - Installation of Kenne Bell Rollers - Questions
- Replies: 35
- Views: 23672
I too dumped the springs and went with spacers, I ground the bolt heads down aswell! I run solid lifters on mine More by luck than judgement I bought some titanium bolts and they are only 13mm heads and have plenty of clearance. Solid lifters. I think eventually I will go this route. Do you have cu...