aggressive tune for lower boost, or, comservative at high boost?
01-29-2004, 01:42 PM
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aggressive tune for lower boost, or, comservative at high boost?
I just spent every last penny on this build so I would really like it if I don't have to do it again,with this motor atleast. So how should I have my car tuned? Which way would be more safe? It's kind of a toss up to me, I feel like I should just run a lower boost ~15psi with a conservative tune but then again I just spent ~$3-4k and I want to make it worth it. I'm sure you know what I'm talking about
01-29-2004, 04:37 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Wo-Nelly)
i have no idea what your setup is. but just follow the simple rule of dont push pump gas over 400 whp and you'll be just fine 
01-29-2004, 04:46 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Mase)
whats the reasoning behind that? My setup is basically cp pistons, ge sleeves, eagle rods, drag manifold, sc61 and a blitz ic. This is on a H22 btw. Is there a general limit of how much boost you can run on pump gas (93 octane)
01-29-2004, 04:52 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Mase)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mase »</TD></TR><TR><TD CLASS="quote">but just follow the simple rule of dont push pump gas over 400 whp and you'll be just fine </TD></TR></TABLE>
</TD></TR></TABLE>
01-29-2004, 06:16 PM
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you always have water/alcohol injection to help you out..
http://www.4x4racecar.net/water_injection.htm
http://www.4x4racecar.net/water_injection.htm
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01-31-2004, 09:29 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Wo-Nelly)
More boost w/ a rich a/f ratio and conservative timing would be safer then less boost with timing and a/f ratio on the edge of full power. My opinion. My reasoning would be that if you push the motors to the same HP level, the one that is running aggressive timing and leaner a/f is more prone to detonating. I think about it like this; say you tune a car to full power @ say 10psi, 12.3:1 a/f and timing set close to max power.. Then you take away 3-4 degrees of timing and drop the a/f to 11:1. You might loose 20hp max! Add just 2psi of pressure in the intake manifold and you will definitly gain back that 20hp and then some. and have more room for error when the weather changes, you run the car to a heavy load in 5th gear, or you get a bad tank of gas or something.. Either way, have it tuned right. No cutting corners on tuning.
01-31-2004, 09:35 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (0x64)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 »</TD></TR><TR><TD CLASS="quote">
</TD></TR></TABLE>
yeah, but those that pay attention have seen that SAME setups dyno with race gas,
and its SOOOOOooo much better.
look at that gnarly dip at 5k,
throughout it climbs in power, but looks like it doesnt want to
other way around with race gas.
</TD></TR></TABLE>yeah, but those that pay attention have seen that SAME setups dyno with race gas,
and its SOOOOOooo much better.
look at that gnarly dip at 5k,
throughout it climbs in power, but looks like it doesnt want to
other way around with race gas.
01-31-2004, 09:37 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Wo-Nelly)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Wo-Nelly »</TD></TR><TR><TD CLASS="quote">whats the reasoning behind that? My setup is basically cp pistons, ge sleeves, eagle rods, drag manifold, sc61 and a blitz ic. This is on a H22 btw. Is there a general limit of how much boost you can run on pump gas (93 octane) </TD></TR></TABLE>
Details: Engine management, fuel setup, ignition set up.....
Details: Engine management, fuel setup, ignition set up.....
01-31-2004, 10:18 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (XSIintegra)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by XSIintegra »</TD></TR><TR><TD CLASS="quote">
Details: Engine management, fuel setup, ignition set up.....</TD></TR></TABLE>
Aem ems, 550 rc's (but I think I might jump to 880's) msd 6al, msd coil, msd wires, copper ngk's. What difference does it make?
I just want to max it out running pump gas first, is there a reason why 400whp is the max for pump gas? If then I still feel the need, I'll tune with race gas.
Details: Engine management, fuel setup, ignition set up.....</TD></TR></TABLE>
Aem ems, 550 rc's (but I think I might jump to 880's) msd 6al, msd coil, msd wires, copper ngk's. What difference does it make?
I just want to max it out running pump gas first, is there a reason why 400whp is the max for pump gas? If then I still feel the need, I'll tune with race gas.
01-31-2004, 11:40 PM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Wo-Nelly)
With up to ~10.0:1 and 92 about the max I'll tune to his 12-14lbs (absolutley no higher, but I'm just trying to stay safe)... Again, that's plenty for most of the time but it's definately nice running VP120, making 600whp+ and boosting up 4th and 5th on the freeway... There's no better feeling than that, hehe...
02-01-2004, 12:17 AM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Tad)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tad »</TD></TR><TR><TD CLASS="quote">
yeah, but those that pay attention have seen that SAME setups dyno with race gas,
and its SOOOOOooo much better.
look at that gnarly dip at 5k,
throughout it climbs in power, but looks like it doesnt want to
other way around with race gas.</TD></TR></TABLE>
whats your point? that pull was the third of the day, I had the vtec set really high because on the highway down we kept hitting vtec. that car made 432 on pump we didnt really start tuning until we put in the race gas. thats when i lowered the vtec to 4700 rpms
yeah, but those that pay attention have seen that SAME setups dyno with race gas,
and its SOOOOOooo much better.
look at that gnarly dip at 5k,
throughout it climbs in power, but looks like it doesnt want to
other way around with race gas.</TD></TR></TABLE>
whats your point? that pull was the third of the day, I had the vtec set really high because on the highway down we kept hitting vtec. that car made 432 on pump we didnt really start tuning until we put in the race gas. thats when i lowered the vtec to 4700 rpms
02-01-2004, 05:53 AM
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Re: aggressive tune for lower boost, or, comservative at high boost? (Kataku2K3)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kataku2K3 »</TD></TR><TR><TD CLASS="quote">With up to ~10.0:1 and 92 about the max I'll tune to his 12-14lbs (absolutley no higher, but I'm just trying to stay safe)... Again, that's plenty for most of the time but it's definately nice running VP120, making 600whp+ and boosting up 4th and 5th on the freeway... There's no better feeling than that, hehe...</TD></TR></TABLE>
I hit 100 mph and I freak! One because if you get caught going that fast, you get a ride home in the limo with lights on top! Two, **** man, its hard to stay straight. I prefer light-to-light if Im out messing around, just seems less insane
I hit 100 mph and I freak! One because if you get caught going that fast, you get a ride home in the limo with lights on top! Two, **** man, its hard to stay straight. I prefer light-to-light if Im out messing around, just seems less insane
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