Engine Management eCtune , Crome , AFC , FMU , Zdyne , Hondata , EMS , TE , Uberdata Anything to control your fuel, spark needs!

high comp tunning?!

Old 04-06-2005, 01:02 PM
  #1  
1.0 BAR
Thread Starter
 
Join Date: Apr 2003
Posts: 384
Default high comp tunning?!

Okay i have a z6 and i stubbled across a fully built head that has also been milled. its been milled like .040. so i know that my c/r is gonna be around 10:1. my question is what kinda tunning should i be doing to get the most and be safe at the same time with this high of c/r? should i just pull some timming in the upper rpm's and make sure i have a good a/f and call it a day? eventually i will get lower comp pistons, but at least for this summer thats not an option.

so what are the do's and dont's when tunning for high comp?

oh yea it will be street tuned with uber and an lm1, z6 with super 60.
fast2camciv is offline  
Old 04-06-2005, 02:12 PM
  #2  
1.5 BAR
 
boosted_b16's Avatar
 
Join Date: Nov 2004
Posts: 820
Default Re: high comp tunning?!

so its about 1 point higher c/r? if so i would say pull another maybe .3 deg. of timing in boost then get it on the wideband and adjust fuel from there....should be ok....
boosted_b16 is offline  
Old 04-06-2005, 03:15 PM
  #3  
1.0 BAR
Thread Starter
 
Join Date: Apr 2003
Posts: 384
Default Re: high comp tunning?!

Yea thats what i was thinkin, i mean people boost b16's all day long and they are just above 10:1 so i wouldnt think that there should be anything significant to tunning a d series with 10:1 compression.
fast2camciv is offline  
Old 04-06-2005, 05:22 PM
  #4  
1.0 BAR
 
Join Date: Jan 2005
Posts: 425
Default Re: high comp tunning?!

run 93 or 94 octane and just monitor for knock. It should be pretty close to being ok. Just might pull a few around MBT.
93turbo16 is offline  
Old 04-06-2005, 07:45 PM
  #5  
3.0 BAR
 
Join Date: Apr 2003
Posts: 2,260
Default Re: high comp tunning?!

Hahahaha.. ya, 10:1 isn't really consdidered "high" compression. Throw some boost at it with some good gas.. your ignition will be fine.
TurboEF9 is offline  
Old 04-07-2005, 02:29 PM
  #6  
3.0 BAR
 
Join Date: Jun 2003
Posts: 1,559
Default Re: high comp tunning?!

wait.. shave .040"!! do you realize how much that is ? Be careful with that man, and I'd suggest a descently thick hg to run with that... it had to have been warped to ---- to shave that much...
jung4g is offline  
Old 04-07-2005, 04:23 PM
  #7  
3.0 BAR
 
Join Date: Apr 2003
Posts: 2,260
Default Re: high comp tunning?!

Bah. I milled my B16 head 0.050" (for NA).. It's aggressive with my CTR pistons an RM customer cams; compresison owns your low end power needs!

..but anyway, it sounds like he has stock Z6 pistons which was pansy *** to begin with, (-10.10cc dish), Unless it's runnign some radically high lift cam.. ..he'll be fine.

Boost on brothah!
TurboEF9 is offline  
Old 04-07-2005, 05:42 PM
  #8  
Tad
1.0 BAR
 
Join Date: Jan 2003
Posts: 422
Default Re: high comp tunning?!

Originally Posted by TurboEF9
Bah. I milled my B16 head 0.050" (for NA).. It's aggressive with my CTR pistons an RM customer cams; compresison owns your low end power needs!

..but anyway, it sounds like he has stock Z6 pistons which was pansy *** to begin with, (-10.10cc dish), Unless it's runnign some radically high lift cam.. ..he'll be fine.

Boost on brothah!
Were you saying high comp is GOOD for low end or bad for lowend?

What did you mean about the high lift cam? That it woudl bump your comp too? I read that somewhere. .but dont see how thats possible..
thnx
Tad is offline  
Old 04-07-2005, 07:37 PM
  #9  
3.0 BAR
 
Join Date: Apr 2003
Posts: 2,260
Default Re: high comp tunning?!

HiGH compression helps your low end power, (power overall, but you really feel it down low).

Cams will not effect compression.

TurboEF9 is offline  
Old 04-08-2005, 12:53 PM
  #10  
1.0 BAR
Thread Starter
 
Join Date: Apr 2003
Posts: 384
Default Re: high comp tunning?!

Yea i still have the z6 pistons as of right now. i will be upgrading but im sticking with stock compression pistons. i did mill the head to gain low end power i want something that is still responsive out of boost. the cam is the zex 593000 cam so its not too bad. i just want something that is going to flow well in the top end and be responsive in and out of boost and this set-up sounds the best on paper, i have yet to put the head on maybe next weekend. i was just worried about timing and tuning. i really dont want the head to lift and be replacing headgaskets all the time.
fast2camciv is offline  

Thread Tools
Search this Thread
Quick Reply: high comp tunning?!


Contact Us - Sitemap - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.