absolute most power on pump gas? max boost or a small shot?
02-02-2005 | 10:54 PM
#21
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single digit dreamer
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From: omaha ne
Originally Posted by Slowhawk
I think we were at 12 degree's of timing at spoolup and 14 degree's up top with A/F at 10.5-1 at spool and 11-1 the rest. No KR was present.
Also tried higher timing but it spooled slow and didn't make any more power but did KR alittle.
Only 93 octain pump gas,street driven/tuned
Also tried higher timing but it spooled slow and didn't make any more power but did KR alittle.
Only 93 octain pump gas,street driven/tuned
sounds like that exhaust presure might really be holding me back. can't wait to try the new header.
02-02-2005 | 11:10 PM
#23
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From: omaha ne
Originally Posted by Slowhawk
You also have to take into account that your truck is alot heavier to move.I would try less timing and more boost.
i guess, what can it hurt to try. i am really kind of just pissing in the wind till i get that new header though. i bet there is 50+hp right there.
02-03-2005 | 05:35 AM
#24
Originally Posted by parish8
less than 13deg?
i guess, what can it hurt to try. i am really kind of just pissing in the wind till i get that new header though. i bet there is 50+hp right there.
i guess, what can it hurt to try. i am really kind of just pissing in the wind till i get that new header though. i bet there is 50+hp right there.
02-03-2005 | 09:05 AM
#25
No kidding that header and downpipe is gonna help a ton. I was thinking of applying for the pump gas drags. Just not sure of all the safety stuff. You must be putting in a cage and axle retention devices and all that good stuff huh.
02-03-2005 | 10:57 AM
#26
I have my STS gt 67 camaro on 10.5 psi for high boost on a stock motor with a 224/224/112 cam. I'm able to run 10.5 psi on 91 octane (intercooled). My timing at the tq peak is 12 at 3200, 11 from 3600-4800, 12 at 5200, 13 at 5600, 14 at 6000 and 15 at 6400.
What i've found is that on 5 psi that at the tq peak it won't take much more timing, about 2 degrees, but it will take more boost without knocking. I thought that with the lower temps due to the intercooler i'd be able to add more timing at the tq peak, but i've found I can only bump it a little.
With our daytime temps in the mid 60's I've had zero knock.
What i've found is that on 5 psi that at the tq peak it won't take much more timing, about 2 degrees, but it will take more boost without knocking. I thought that with the lower temps due to the intercooler i'd be able to add more timing at the tq peak, but i've found I can only bump it a little.
With our daytime temps in the mid 60's I've had zero knock.
02-03-2005 | 04:35 PM
#27
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Open up that exhaust housing and the 3.5" DP will help wonders. You will make more power on pump gas spraying water injection and cranking up the boost, no question. Like I mentioned earlier, there was a guy at the pump gas drags last year that made 930 RWHP out of a twin turbo 337" ford motor, spraying water injection. You won't do that on turbo + nitrous without the water, I can tell you that.
02-03-2005 | 04:50 PM
#28
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From: omaha ne
Originally Posted by hellbents10
No kidding that header and downpipe is gonna help a ton. I was thinking of applying for the pump gas drags. Just not sure of all the safety stuff. You must be putting in a cage and axle retention devices and all that good stuff huh.
02-03-2005 | 05:36 PM
#31
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Originally Posted by Pro Stock John
Big ol' heavy truck is load city.
I'd like to hear more about this 930rwhp setup, what else you know about it evil?
I'd like to hear more about this 930rwhp setup, what else you know about it evil?
02-03-2005 | 07:25 PM
#35
02-03-2005 | 07:33 PM
#36
Originally Posted by MIGHTYMOUSE
02-03-2005 | 09:01 PM
#37
Originally Posted by parish8
i am looking to absolutly maximize my pump gas hp. i can not use alkey injecton but i can use nitrous or water injection. i just sent in my application to the hotrod pump gas drags and am geting ahead of myself i know but thats how i am. the fuel is 93octane
i have some plans, better flowing header and exhaust are on top of my list but other than that i think i need to maximize my tune.
i have made about 30gtech runs in the last few days and figured out a prety good mix of boost/fuel and timing to get 0KR and nice power. now i am looking at tosing nitrous into the mix too. would pulling 1lb of boost and running a 35shot give me more knock free power or is boost only the way to fly. this will be a dry shot with the injectors adding the extra fuel. anyone have any experience or oponions here.
i have some plans, better flowing header and exhaust are on top of my list but other than that i think i need to maximize my tune.
i have made about 30gtech runs in the last few days and figured out a prety good mix of boost/fuel and timing to get 0KR and nice power. now i am looking at tosing nitrous into the mix too. would pulling 1lb of boost and running a 35shot give me more knock free power or is boost only the way to fly. this will be a dry shot with the injectors adding the extra fuel. anyone have any experience or oponions here.
