Street car, twin turbo, no intercooler... just meth inj?
11-09-2010, 10:56 AM
#1
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Street car, twin turbo, no intercooler... just meth inj? Hey guys
A very reputable shop is suggesting that I go with just meth injection (no intercooler) for my twin turbo street car. it will either be a 6.0L or 408. stock 317 heads and 15 psi (guess thats the max safe limit with stock heads?)
hoping for 800 at the crank.
should i just run meth injection or do i need the intercooler? or both?
thanks!
A very reputable shop is suggesting that I go with just meth injection (no intercooler) for my twin turbo street car. it will either be a 6.0L or 408. stock 317 heads and 15 psi (guess thats the max safe limit with stock heads?)
hoping for 800 at the crank.
should i just run meth injection or do i need the intercooler? or both?
thanks!
11-09-2010, 12:00 PM
#2
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This subject has come up several times. You should search alittle and see the feedback. I dont know why you wouldnt atleast run a smaller sized air/air along with the meth. You can get the A2A setups so cheap off ebay I cant imagine not doing it.
11-09-2010, 03:49 PM
#7
Theres some good ones on ebay for $100-150. As long as its a 4" core with at least a 3" in/out with the boost that we run on these cars, you should be fine. Now a 24+psi setup, I can see how the extra coin on namebrand might be worth it. Otherwise, save the cash for the parts that really make the most difference - turbo, WG, BOV.
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11-13-2010, 05:03 PM
#9
11-14-2010, 12:54 PM
#10
I run e85 and no intercooler on a 10.7:1 370
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
11-14-2010, 01:35 PM
#12
I run e85 and no intercooler on a 10.7:1 370
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
That IAT rise looks pretty good over three gears with no IC!
BTW; either your Boost PID or your MAP PID is reading incorrectly in your log. The Boost PID shows about a half pound but your MAP is at about 91kPa. At the top side screen shot, there is about a 4psi difference in what they are reading.
11-14-2010, 01:44 PM
#13
That IAT rise looks pretty good over three gears with no IC!
BTW; either your Boost PID or your MAP PID is reading incorrectly in your log. The Boost PID shows about a half pound but your MAP is at about 91kPa. At the top side screen shot, there is about a 4psi difference in what they are reading.
BTW; either your Boost PID or your MAP PID is reading incorrectly in your log. The Boost PID shows about a half pound but your MAP is at about 91kPa. At the top side screen shot, there is about a 4psi difference in what they are reading.
yeah it is a 3spd auto with a 3.23 rear,
and my MAP scaling is messed up, always has been since i loaded the custom SD HTP OS
it works so i just left it
and the boost PID i just threw together so people could see somewhat without trying to understand the MAP readout when they are not familiar with HPT
11-15-2010, 11:47 AM
#14
I always see examples here & there of no intercooler set ups. I tried it with dual nozzle meth & pre ignited so hard it split the block. Didn't work for me, it blew @ 238 IAT.
One thing on my set up was that my air intake was coming from the engine bay, maybe with a good CAI? I don't know & don't care, I'll always have an intercooler now.
With my cheap ebay intercooler I am now seeing ambient in that old rat rod.
One thing on my set up was that my air intake was coming from the engine bay, maybe with a good CAI? I don't know & don't care, I'll always have an intercooler now.
With my cheap ebay intercooler I am now seeing ambient in that old rat rod.
11-16-2010, 12:34 PM
#16
I used to run my buick for 3 years with no intercooler, pump 89 octane, and NO injection. Made enough power to go 130mph traps at 3800lbs. Stock LQ4, BW s475 turbo, 10-12* timing and anywhere from 7-12psi depending on what i needed at the time.
On pump 93 i ran 14* timing and 14psi, could pull on cars that ran mid-low 10s@135 on the street all day
Supposedly the new owner on C16 it went 9.9x@142 on the first pass but i cant confirm that
On pump 93 i ran 14* timing and 14psi, could pull on cars that ran mid-low 10s@135 on the street all day
Supposedly the new owner on C16 it went 9.9x@142 on the first pass but i cant confirm that
11-16-2010, 12:53 PM
#18
I run e85 and no intercooler on a 10.7:1 370
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
and i spray 50/50 meth/water through just one 8gph nozzle
here is a log on 8psi to show your what IATs do, disregard the boost PID as it is erratic,
use the MAP
no signs of det. for me but i am still adding an IC because it can not hurt i guess
15psi would push it IMO though.... my 2 cents
you have a significant amount of cooling from e85 that your IAT is not showing
11-16-2010, 06:49 PM
#20
hi, did your IAT show the cooling effects of the e85? e85 is amazing at cooling it unreal. on my car, the intake gets a little bit warm because the e85 is not touching the intake, but on my buddies carburated e85 car, the intake gets COLD when the engine is running and even after a pass, it does not get warm until he turns off the engine and allows the intake to heat soak from the rest of the engine.
you have a significant amount of cooling from e85 that your IAT is not showing
you have a significant amount of cooling from e85 that your IAT is not showing
like you said the IAT wont show it because the fuel injectors are downstream, but it is happening regardless
