after home many PSI do u need boost retard
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after home many PSI do u need boost retard
I just wanted to what everyone thinks or that is the common law behind psi and boost retard, for spark timing . im on 9 psi and i have no timing control.. just i have the distributor pull all the way back .. and i have my ecu custom chiped to retard .075 under load instead of advancing... what do u all think ...
#2
Re: after home many PSI do u need boost retard (havok hybrid)
Bump ^^
I'm also curious on hearing what the general rule is about this.. I'm running 6 psi on a greddy kit on a D16Z6 and I want to boost more but I can afford to plop down 750 bucks for a MSD 6BTM...
I'm also curious on hearing what the general rule is about this.. I'm running 6 psi on a greddy kit on a D16Z6 and I want to boost more but I can afford to plop down 750 bucks for a MSD 6BTM...
#3
Re: after home many PSI do u need boost retard (M-EJ1)
.25 degrees per psi.
Also...BtM are only like $350 ish..
You can get a timming computer form jegs or summit for a little over $100
Also...BtM are only like $350 ish..
You can get a timming computer form jegs or summit for a little over $100
#6
Re: after home many PSI do u need boost retard (falconGSR)
.25 degrees per psi.
really? thats it?
really? thats it?
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Re: after home many PSI do u need boost retard (CzanSOHC)
YOUR FRIEND**.. what motor setup was it.. im on 9 psi.. ... and what turbo.. and what fuel.. ?... that would blown my mind if i could boost 16 psi on my sohc
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#8
Re: after home many PSI do u need boost retard (havok hybrid)
YOUR FRIEND**.. what motor setup was it.. im on 9 psi.. ... and what turbo.. and what fuel.. ?... that would blown my mind if i could boost 16 psi on my sohc
I told him he was crazy, but he pulled a 13.4 w/ z10 bars on a stock block at 16psi.
I don't recommend this at all.
#9
Re: after home many PSI do u need boost retard (CzanSOHC)
.25 degrees per psi.
Also...BtM are only like $350 ish..
You can get a timming computer form jegs or summit for a little over $100
Also...BtM are only like $350 ish..
You can get a timming computer form jegs or summit for a little over $100
#13
Re: after home many PSI do u need boost retard (M-EJ1)
Bump ^^
I'm also curious on hearing what the general rule is about this.. I'm running 6 psi on a greddy kit on a D16Z6 and I want to boost more but I can afford to plop down 750 bucks for a MSD 6BTM...
I'm also curious on hearing what the general rule is about this.. I'm running 6 psi on a greddy kit on a D16Z6 and I want to boost more but I can afford to plop down 750 bucks for a MSD 6BTM...
[Modified by JT, 1:55 PM 2/16/2003]
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Re: after home many PSI do u need boost retard (CzanSOHC)
but he pulled a 13.4 w/ z10 bars on a stock block at 16psi.
I don't recommend this at all.
I don't recommend this at all.
#15
Re: after home many PSI do u need boost retard (havok hybrid)
i've heard just to pull a little timing and you'll be fine until 10 psi
after that get the BTM or some other form of boost retard
after that get the BTM or some other form of boost retard
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Re: after home many PSI do u need boost retard (havok hybrid)
depends on the octane level gas u use and the compression ratio of the motor.
u can get away w/ stock timing up to a point. and then u might have to retard more and more as the boost goes up. and then theres a point where u have taken too much timing out which can be dangerous as well.
but.. .75deg retard per psi seems to be a good place to start
.5 deg retard/psi it still conservative but will make more power
.25 i would only do up to 10psi then i'd take out more.
if u look at the people tuning stock honda motors successfully they seem to take the higher boost/lesser timing approach. It has worked well on my car so far. running .7deg retard/psi
[Modified by DIRep, 8:39 PM 2/16/2003]
u can get away w/ stock timing up to a point. and then u might have to retard more and more as the boost goes up. and then theres a point where u have taken too much timing out which can be dangerous as well.
but.. .75deg retard per psi seems to be a good place to start
.5 deg retard/psi it still conservative but will make more power
.25 i would only do up to 10psi then i'd take out more.
if u look at the people tuning stock honda motors successfully they seem to take the higher boost/lesser timing approach. It has worked well on my car so far. running .7deg retard/psi
[Modified by DIRep, 8:39 PM 2/16/2003]
#17
Re: after home many PSI do u need boost retard (CzanSOHC)
YOUR FRIEND**.. what motor setup was it.. im on 9 psi.. ... and what turbo.. and what fuel.. ?... that would blown my mind if i could boost 16 psi on my sohc
Stock SOHC z6, Apexi turbo kit, Apexi V-AFC, 370cc injectors and missing link.
I told him he was crazy, but he pulled a 13.4 w/ z10 bars on a stock block at 16psi.
I don't recommend this at all.
Stock SOHC z6, Apexi turbo kit, Apexi V-AFC, 370cc injectors and missing link.
I told him he was crazy, but he pulled a 13.4 w/ z10 bars on a stock block at 16psi.
I don't recommend this at all.
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Re: after home many PSI do u need boost retard (DIRep)
can anyone help me?
how much would i need to retard for 7 psi with a b18b and rev hard set up(to4e)?
7 x .25=1.75 degrees?
im a noob at timing.
how much would i need to retard for 7 psi with a b18b and rev hard set up(to4e)?
7 x .25=1.75 degrees?
im a noob at timing.
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Re: after home many PSI do u need boost retard (wickedxboi)
can anyone help me?
how much would i need to retard for 7 psi with a b18b and rev hard set up(to4e)?
7 x .25=1.75 degrees?
im a noob at timing.
how much would i need to retard for 7 psi with a b18b and rev hard set up(to4e)?
7 x .25=1.75 degrees?
im a noob at timing.
#20
Re: after home many PSI do u need boost retard (DIRep)
not to hijack your thread but what about a stock b16a runing 9psi with t3t40E .57 trim .63 ar, gs-r ecu...
rite now i'm runing 12 degrees.....would 14 degrees be ok?
rite now i'm runing 12 degrees.....would 14 degrees be ok?
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