Have you ever degreed your cams with the engine in the car? I was wanting to make sure that this is possible. Dbsupra and I are planning on doing mine thursday before the Chicago meet. I hate to do it so close to the meet, but he is the only person that I know of that's did this before, and he hasn't done it with the engine still in the car. I was looking for some advice, pointers, tricks of the trade, or maybe even a good luck. Thanks, Jay
Have you ever degreed your cams?
- Thread starter suprahero
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There is a video out there let me see if i can find it the one one from speed channel when they are adjusting some cams on a 2JZGTE might be on SF : (
it's better to go on the dyno and adjust until you stop gaining power... the degree is just a baseline. you could make more by adjusting...
Always Degree mine to get a known starting point as a reference for future tuning sessions as Eric pointed out.
It's a bitch to get right in the car so I 0 mine on the stand.
It's a bitch to get right in the car so I 0 mine on the stand.
Jay,
I was going to degree my HKS cams but after speaking with several tuners, they all advised me that the 10-15 hp (liberal estimate) gains that could be achieved with adj gears was not worth the cost involved i.e cam gears and an hour or so of dyno time. Therefore, I sold my gears and I am going to set them at zero. Do like me and put that $300 toward a meth kit which can easily gain you 70 hp and let your 35r come to life at 23 psi :bigthumb:
I was going to degree my HKS cams but after speaking with several tuners, they all advised me that the 10-15 hp (liberal estimate) gains that could be achieved with adj gears was not worth the cost involved i.e cam gears and an hour or so of dyno time. Therefore, I sold my gears and I am going to set them at zero. Do like me and put that $300 toward a meth kit which can easily gain you 70 hp and let your 35r come to life at 23 psi :bigthumb:
you guys better help him. i charge $100/hr to work on 1jz's
but seriously, dont confuse tuning the cam gears w/ degreeing them.
i think since they arent degreed to 0 it is causing some overlap and the lower compression.
also, i agree there arent huge peak number gains tuning cams. but you can change the powerband around some.
but seriously, dont confuse tuning the cam gears w/ degreeing them.
i think since they arent degreed to 0 it is causing some overlap and the lower compression.
also, i agree there arent huge peak number gains tuning cams. but you can change the powerband around some.
Evilempire1.3JZ-GTE said:
it was 2nr on spike. its an extra $20 fee for me being badass at finding supra videos lol.
http://www.youtube.com/watch?v=_MsqA-C3vGI&mode=related&search=
^^ Thank you that was it!
Very informative video
This thread is going almost no where : (
Anyways the best way to adjust your cams is via computer.
By installing a variable cam on both intake and exhaust and having a computer tune your cams while the engine is running is the best design and peakes your power on all your power band only (1) toyota engine comes factory this way I am not going to bother to preach about the engine because I have one and its off topic.
I believe right now HKS is proto typing a kit than can make any engine with this kit veriable cam! its like 4K for this kit this allows you to tune your engine while its running instead of turning it off then adjusting the cams then repeating this over and over because anytime you gain power in the lower end you loose it in the upper end so the best spot to really set it at is where you gain both bottom and top end and set it there 1 time.
Very informative video
This thread is going almost no where : (
Anyways the best way to adjust your cams is via computer.
By installing a variable cam on both intake and exhaust and having a computer tune your cams while the engine is running is the best design and peakes your power on all your power band only (1) toyota engine comes factory this way I am not going to bother to preach about the engine because I have one and its off topic.
I believe right now HKS is proto typing a kit than can make any engine with this kit veriable cam! its like 4K for this kit this allows you to tune your engine while its running instead of turning it off then adjusting the cams then repeating this over and over because anytime you gain power in the lower end you loose it in the upper end so the best spot to really set it at is where you gain both bottom and top end and set it there 1 time.
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Jay: One step at a time....
Too many and you lose the way, if you're playing Cams turn the AVCR off and get the Cams right remembering to reset Ignition timing at each change.
Once you find the Tq peak for the Cam timing then move onto the next thing you want to adjust.
It helps if you take a legal pad to note each change on.
Too many and you lose the way, if you're playing Cams turn the AVCR off and get the Cams right remembering to reset Ignition timing at each change.
Once you find the Tq peak for the Cam timing then move onto the next thing you want to adjust.
It helps if you take a legal pad to note each change on.
buckshotglass
I love all your sounds.
I think your timing tag will say where Crower wants them for a baseline. On my car, a 7M, zeroed to the timing tag is not zero on my adj gears.
I know we checked my timing and it was at 17degrees btdc. I think that's what he said it was at.
I will go back and try it again and this time I will turn off the AVC-R. Maybe I can get some better numbers. My car dyno'd in February at 446 with 16psi and this past time it only made 427 @ 20psi. I've got to have something thouroughly screwed up. It was cooler two nights ago when I dyno'd than it was in February.
I will go back and try it again and this time I will turn off the AVC-R. Maybe I can get some better numbers. My car dyno'd in February at 446 with 16psi and this past time it only made 427 @ 20psi. I've got to have something thouroughly screwed up. It was cooler two nights ago when I dyno'd than it was in February.
Be careful running more than 18PSI on pump gas Jay.
And I believe timing has been your issue from day 1.
And I believe timing has been your issue from day 1.
suprahero said:
17* base timing? im no 1j expert, but that is kinda high or no?
oh thought id also mention. sp uses a mustang dyno. so the readings you get at the meet (if you were still going to dyno) will be different than what you have as previous baselines.
jump the daig block.. Timing should be ~ 10*
timing will be around 15* or so at idle with it not jumpered.. so might be around right..
timing will be around 15* or so at idle with it not jumpered.. so might be around right..