Do my timing numbers look good for a turbo GSR?
07-15-2005, 10:25 PM
#1
Honda-Tech Member
Thread Starter
Join Date: Mar 2001
Location: Somewhere in California
Posts: 4,408
Likes: 0
Received 3 Likes
on
3 Posts
Do my timing numbers look good for a turbo GSR?
Wassup guys,
I was wondering if you guys could look over my timing numbers and tell me how they look. I did up a manual step retard and I just wanted to be sure I did it right.
Here are my step retard numbers:
0.4 psi - 0.25* per psi
2.1 psi - 0.25* per psi
3.9 psi - 0.50* per psi
5.7 psi - 0.75* per psi
7.5 psi - 0.85* per psi
9.3 psi - 0.95* per psi
11.2 psi - 1* per psi
LOW CAM TIMING
HIGH CAM TIMING
let me know what you guys think
TIA
I was wondering if you guys could look over my timing numbers and tell me how they look. I did up a manual step retard and I just wanted to be sure I did it right.
Here are my step retard numbers:
0.4 psi - 0.25* per psi
2.1 psi - 0.25* per psi
3.9 psi - 0.50* per psi
5.7 psi - 0.75* per psi
7.5 psi - 0.85* per psi
9.3 psi - 0.95* per psi
11.2 psi - 1* per psi
LOW CAM TIMING
HIGH CAM TIMING
let me know what you guys think
TIA
07-15-2005, 10:40 PM
#3
Honda-Tech Member
Thread Starter
Join Date: Mar 2001
Location: Somewhere in California
Posts: 4,408
Likes: 0
Received 3 Likes
on
3 Posts
Re: (Tchleung)
Yup I'm tuning it more for safety not for power. So I wanted to keep it conservative and not too aggressive. This was also when I had a stock motor, soon I'll have a fully built motor though so I'll probably have to adjust the timing to match my new setup.
But if you have another idea for a step retard setup under boost let me know. Also if you guys think I should advance my timing throughout the vacuum portion let me know how much.
Here is what my new setup will be, all work is to be done by earl:
GSR head with Portflow headwork
GSR block sleeved by Benson 83mm bore
LS crank
9.0:1 CP pistons, but according to earl my CR will be 9.4:1
750cc injectors
91 octane gas, looking to make 350-400+ WHP
But if you have another idea for a step retard setup under boost let me know. Also if you guys think I should advance my timing throughout the vacuum portion let me know how much.
Here is what my new setup will be, all work is to be done by earl:
GSR head with Portflow headwork
GSR block sleeved by Benson 83mm bore
LS crank
9.0:1 CP pistons, but according to earl my CR will be 9.4:1
750cc injectors
91 octane gas, looking to make 350-400+ WHP
07-16-2005, 03:14 AM
#4
Honda-Tech Member
Re: (Tchleung)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tchleung »</TD></TR><TR><TD CLASS="quote">Way way too conservative</TD></TR></TABLE>
Even for 91 octane. It would be pointless to run anymore than 7psi at this point because w/ that timing there will be no gains. I wouldn't start the step retard until about 3 psi. Then I.E.
3- .4* per psi
5- .5* per psi
7- .6* per psi
9- .7* per psi
11- .8* per psi
That will still be conservative IMO. Make sure your A/F is solid and you should be good even w/ the 91 oct.
Even for 91 octane. It would be pointless to run anymore than 7psi at this point because w/ that timing there will be no gains. I wouldn't start the step retard until about 3 psi. Then I.E.
3- .4* per psi
5- .5* per psi
7- .6* per psi
9- .7* per psi
11- .8* per psi
That will still be conservative IMO. Make sure your A/F is solid and you should be good even w/ the 91 oct.
07-16-2005, 04:49 AM
#6
Honda-Tech Member
Re: (BlueShadow)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlueShadow »</TD></TR><TR><TD CLASS="quote">thanks meng,
I'll redo my step retard and use your numbers. </TD></TR></TABLE>
Sounds good. Good luck w/ it and read those plugs
Phil
I'll redo my step retard and use your numbers. </TD></TR></TABLE>
Sounds good. Good luck w/ it and read those plugs
Phil
Thread
Thread Starter
Forum
Replies
Last Post
miro_gt
Forced Induction
8
09-19-2005 02:17 PM
wade
Forced Induction
3
08-09-2005 06:22 AM
