issue after instaling high cams...

93na

500 RPM
Senior Member
Mar 9, 2009
597
20
1,518
after changin my block, i install 300/288 cams for my ride... was using this setup last time with no issue. but today when i install my cams i have this problem... my timing goes fromm500 to 2500 rpm and when i shift gear the rpm takes awhile for it to drop!!!...

like when i shift fron 2nd to 3rd gear at 2500rpm when i clutch in the rpm stay at 2600! it does not drop!! anyway know y this happen....
 

protonevo

Known Member
Senior Member
Feb 25, 2004
247
3
3,018
Selangor
www.zerotohundred.com
your cam overlapping is very high hence caused engine rpm stable while engaging gear and drop after a while. This is normal for such cam profile. Fast car doesn't sip petrol, it drink ! Your current engine setup very good for drag racing
 

93na

500 RPM
Senior Member
Thread starter
Mar 9, 2009
597
20
1,518
ya it tune for drag la.. if i have the budget ha ha ha... but the issue i have here is the rpm does not drop when i wan to engage gear... exp when we shift gear the rpm drop right? mine dont... it stuck there... it only drop when i have engage the gear!!!