need 40more hp, 35shot or more boost?
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
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From: omaha ne
need 40more hp, 35shot or more boost? i want to bust a 10 next friday at the track, i got a 11.43 last time i went but poped the head gaskets, from what most people say they shouldt have poped just yet. this time i put on some stock mls gaskets(had the cheap felpros before) and overtorqued them a little.
i spray out of the hole for 1 sec to get me moving and figure i can up the shot out of the hole from a 75 to at least a 100 and maybe 125, that should get me .1 on my 60's i think.
i can pull 150lbs off of the truck, that should be .1
now i need more power, the truck is prety much set up for a 2 stage wet from before i had the turbo so the question is which would be better, safer or most likely to get me my 10.99? a 35shot the entire run or 2-3psi more boost? i will still be spraying the bigger shot out of the hole either way i go.
i am at about 13psi now and am using 111leaded gas,
i spray out of the hole for 1 sec to get me moving and figure i can up the shot out of the hole from a 75 to at least a 100 and maybe 125, that should get me .1 on my 60's i think.
i can pull 150lbs off of the truck, that should be .1
now i need more power, the truck is prety much set up for a 2 stage wet from before i had the turbo so the question is which would be better, safer or most likely to get me my 10.99? a 35shot the entire run or 2-3psi more boost? i will still be spraying the bigger shot out of the hole either way i go.
i am at about 13psi now and am using 111leaded gas,
Originally Posted by parish8
i want to bust a 10 next friday at the track, i got a 11.43 last time i went but poped the head gaskets, from what most people say they shouldt have poped just yet. this time i put on some stock mls gaskets(had the cheap felpros before) and overtorqued them a little.
i spray out of the hole for 1 sec to get me moving and figure i can up the shot out of the hole from a 75 to at least a 100 and maybe 125, that should get me .1 on my 60's i think.
i can pull 150lbs off of the truck, that should be .1
now i need more power, the truck is prety much set up for a 2 stage wet from before i had the turbo so the question is which would be better, safer or most likely to get me my 10.99? a 35shot the entire run or 2-3psi more boost? i will still be spraying the bigger shot out of the hole either way i go.
i am at about 13psi now and am using 111leaded gas,
i spray out of the hole for 1 sec to get me moving and figure i can up the shot out of the hole from a 75 to at least a 100 and maybe 125, that should get me .1 on my 60's i think.
i can pull 150lbs off of the truck, that should be .1
now i need more power, the truck is prety much set up for a 2 stage wet from before i had the turbo so the question is which would be better, safer or most likely to get me my 10.99? a 35shot the entire run or 2-3psi more boost? i will still be spraying the bigger shot out of the hole either way i go.
i am at about 13psi now and am using 111leaded gas,
Teching In
Joined: May 2004
Posts: 16
Likes: 0
From: Chicoutimi, Quebec
I'm sure you hear this a lot, but impressive times. A couple diesels and some typhoons running that around here, but not many. Went to your web-site but didn't see any info on the new truck. Have you played around on the dyno adding a couple psi of boost here and there to see when/if turbos start falling off. If you're moving too much air for the system already, a couple pounds of boost may do nothing but add heat to the system. If you have addressed all the efficiency issues and are sure there is more room to go up in boost... I'd do that. Working on getting out of the hole is good advice as well.
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
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From: omaha ne
i am pulling low 1.7's out of the hole, i think i can get that to low 1.6's, anymore than that and i will need some tires or somthing i am sure(stock firestone AT's 
)
i dont think the turbo is maxed or the intercooler, nothing like that, my iat's are still prety cool. i am only spraying for the first 1sec in case anyone missed that before, no way to dyno that since i don't spray up top.
my maf is maxed though, upping the boost will mean fueling with the pe vs rpm table, thats not really a problem and i run a wideband at the track.
)i dont think the turbo is maxed or the intercooler, nothing like that, my iat's are still prety cool. i am only spraying for the first 1sec in case anyone missed that before, no way to dyno that since i don't spray up top.
my maf is maxed though, upping the boost will mean fueling with the pe vs rpm table, thats not really a problem and i run a wideband at the track.
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Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
Likes: 4
From: omaha ne
no idea why the head gaskets went, i asked around and posted pic's but there seems to be no obvious cause.
they were the cheaper felpro gaskets and i may have been slighly lean. now i have better gaskets, slightly more torque on the studs, running 11.8 for the leanest part of my a/f ratio and 11.5 for most of it.
who knows i might just pop another gasket, or worse
, probably not the brightest thing to try and run a 10 with a prety much stock motor.
they were the cheaper felpro gaskets and i may have been slighly lean. now i have better gaskets, slightly more torque on the studs, running 11.8 for the leanest part of my a/f ratio and 11.5 for most of it.
who knows i might just pop another gasket, or worse
, probably not the brightest thing to try and run a 10 with a prety much stock motor. 
You need to take out timing for the nitrous, what is your total timing right now?
I think you need a 1.5 to run a 10 second pass unless you try to run a 1.6 with a whole lotta power.
I think you need a 1.5 to run a 10 second pass unless you try to run a 1.6 with a whole lotta power.
Thread Starter
single digit dreamer
iTrader: (6)
Joined: Mar 2002
Posts: 9,757
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From: omaha ne
i usualy see between 19-21deg of timing, i have it set up to run a couple of deg's less down where i am spraying, right in the 17-19range at those rpm's.
even if i only spray a 35shot(the entire run) you think i should drop the timing?
even if i only spray a 35shot(the entire run) you think i should drop the timing?
Launching!
Joined: Nov 2001
Posts: 289
Likes: 0
From: Dallas, Tx
Take your timing down to 15 degrees or so on the bottle. When you crank the boost up, be sure to lower it abit also. 19-20 seems alittle high.....and make sure you have PURE racegas in the tank, and not a dilluted pump/race mix. Just the slightest amount of pumpgas can ruin a tank of 112. (loweres the octane rating way too much)
Chris
Chris
Yah what Chris said, 19-20 sounds like too much for your current setup.
15 degrees would be far safer and should go a long way to keeping the heads on the car.
I would spray off the line assuming you only spray above 3500 rpms. The ET is all about the first half of the pass (like Chris said).
15 degrees would be far safer and should go a long way to keeping the heads on the car.
I would spray off the line assuming you only spray above 3500 rpms. The ET is all about the first half of the pass (like Chris said).