JBP VVT LE5 Camshafts
11-03-2006, 11:01 PM
#129
Senior Member
Join Date: 03-17-06
Location: Moncton Newbrunswick Can.
Posts: 17,268
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Allshot
Mike if you want to come down to northern cali we can run em. 
your to modded,but I bet ya I could give a stock ss/sc a good run eventually,what do you think Allshot?
11-03-2006, 11:11 PM
#130
Banned
Join Date: 05-27-06
Location: San Leandro, CA
Posts: 13,079
Likes: 0
Received 0 Likes
on
0 Posts
I think with the cams header downpipe and tune you should put up a good fight. I know I was in big worms 2.4 and he had the header downpipe exhaust and tune and his car felt like it hauled *****
11-04-2006, 12:29 AM
#131
Senior Member
Join Date: 06-06-06
Location: Oakland, Ca
Posts: 753
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Allshot
...I know I was in big worms 2.4 and he had the header downpipe exhaust and tune and his car felt like it hauled *****
however, the 54 trim is on the way =]
11-04-2006, 12:44 AM
#134
Senior Member
Join Date: 03-17-06
Location: Moncton Newbrunswick Can.
Posts: 17,268
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by 2K5SS/SC?
Great to hear it's fixed. I thought it had to do with the cam sensor or timing. I want to see numbers now.
11-04-2006, 01:08 AM
#135
New Member
Join Date: 07-15-06
Location: Omaha, NE
Posts: 125
Likes: 0
Received 0 Likes
on
0 Posts
that sucks, we're all glad to see things are moving forward and i cannot wait to hear that results from the cam swap. will be checking in all the time for the updates.
11-04-2006, 03:44 AM
#136
Senior Member
Join Date: 07-08-05
Location: Niceville, FL
Posts: 6,200
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by g5mike
not all fixed,ended up taking it to a performance shop,my buddy had everything ass backwards
11-04-2006, 08:59 AM
#138
Senior Member
Join Date: 07-08-05
Location: Niceville, FL
Posts: 6,200
Likes: 0
Received 0 Likes
on
0 Posts
I think he means that the crank in relation to the cams is off. The cam gears and cams should be marked prior to removal. The problems with replacing the cams is you loose that mark, and if everything is not spot on with the new ones, all the valve timing will be off = very bad.
11-04-2006, 09:10 AM
#140
I think it's also misleading to think that it's easy just to swap out the cams because the way they sit on top of the cylinder head -- looks like a simple remove and reinstall. The timing chain is rather complicated with the balance shafts and "serpentine-like" routing -- I think it would be safer to pull the front cover off the engine to double check that the timing chain is lined up and timed properly when swapping out cams, IMO.
11-04-2006, 09:31 AM
#141
Senior Member
Join Date: 02-09-06
Location: Abita Springs, Louisiana
Posts: 626
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Cobalter LS
I think it's also misleading to think that it's easy just to swap out the cams because the way they sit on top of the cylinder head -- looks like a simple remove and reinstall. The timing chain is rather complicated with the balance shafts and "serpentine-like" routing -- I think it would be safer to pull the front cover off the engine to double check that the timing chain is lined up and timed properly when swapping out cams, IMO.
I'm sure you've heard of 2 identical engines coming off the assembly line with 2-3hp varience between them? This is most often the result of normal variations in cam timing from the factory.
11-04-2006, 09:35 AM
#142
Junior Member
Join Date: 10-26-06
Location: SE VA
Posts: 454
Likes: 0
Received 0 Likes
on
0 Posts
I would be more than concerned about bent valves at this point.
Also very concerned that any feedback following this fiasco should be taken with a grain of salt. There were no baseline dyno tests and HP "claims" are much higher than should be realistically expected.
Also very concerned that any feedback following this fiasco should be taken with a grain of salt. There were no baseline dyno tests and HP "claims" are much higher than should be realistically expected.
11-04-2006, 09:41 AM
#143
Senior Member
Join Date: 02-09-06
Location: Abita Springs, Louisiana
Posts: 626
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by BennyHHR
I would be more than concerned about bent valves at this point.
Also very concerned that any feedback following this fiasco should be taken with a grain of salt. There were no baseline dyno tests and HP "claims" are much higher than should be realistically expected.
Also very concerned that any feedback following this fiasco should be taken with a grain of salt. There were no baseline dyno tests and HP "claims" are much higher than should be realistically expected.
G5mike, do you have any 1/4 or 1/8 mile times to compare against? Or, have you raced a friend that you just barely beat or that just barely beat you that you could race again so we can use it as a reference to compare performance gains?
Inquiring minds want to know.
11-04-2006, 11:09 AM
#144
Senior Member
Join Date: 03-17-06
Location: Moncton Newbrunswick Can.
Posts: 17,268
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by Cobalter LS
I think it's also misleading to think that it's easy just to swap out the cams because the way they sit on top of the cylinder head -- looks like a simple remove and reinstall. The timing chain is rather complicated with the balance shafts and "serpentine-like" routing -- I think it would be safer to pull the front cover off the engine to double check that the timing chain is lined up and timed properly when swapping out cams, IMO.
11-04-2006, 11:11 AM
#145
Senior Member
Join Date: 03-17-06
Location: Moncton Newbrunswick Can.
Posts: 17,268
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by sushidog
Good point.
G5mike, do you have any 1/4 or 1/8 mile times to compare against? Or, have you raced a friend that you just barely beat or that just barely beat you that you could race again so we can use it as a reference to compare performance gains?
Inquiring minds want to know.
G5mike, do you have any 1/4 or 1/8 mile times to compare against? Or, have you raced a friend that you just barely beat or that just barely beat you that you could race again so we can use it as a reference to compare performance gains?
Inquiring minds want to know.
11-04-2006, 03:03 PM
#146
Banned
Thread Starter
Join Date: 07-04-06
Location: Toronto
Posts: 606
Likes: 0
Received 0 Likes
on
0 Posts
Mike, thats terrible news. Have the shop perform a leak down test on cyl #1 with the camshafts rotated at TDC (not 60 deg b4) and ensure that both exhaust and int. cams are not actuating the valves. Hopefully, your going to be about 80% or higher... If not, then the head has to come off.
Timing on the ECOTEC engines is something thats very very sensitive. Even dealers screw this up... You really have to know what you're doing.
Timing on the ECOTEC engines is something thats very very sensitive. Even dealers screw this up... You really have to know what you're doing.
11-04-2006, 03:15 PM
#147
Senior Member
Join Date: 03-17-06
Location: Moncton Newbrunswick Can.
Posts: 17,268
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by JBP
Mike, thats terrible news. Have the shop perform a leak down test on cyl #1 with the camshafts rotated at TDC (not 60 deg b4) and ensure that both exhaust and int. cams are not actuating the valves. Hopefully, your going to be about 80% or higher... If not, then the head has to come off.
Timing on the ECOTEC engines is something thats very very sensitive. Even dealers screw this up... You really have to know what you're doing.
Timing on the ECOTEC engines is something thats very very sensitive. Even dealers screw this up... You really have to know what you're doing.
