Is 23lbs of boost safe for me?
Jul 27, 2005, 08:26 AM
#16
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Originally Posted by david350Z03
I was considering running 24lbs of boost on some 104 Octane tomorrow. What do you guys think? I need some advice. Am I running too much boost? Will my wastegate and stock BOV be able to handle 23 or 24lbs of boost? Thanks.
david
david
Jul 27, 2005, 08:48 AM
#17
Originally Posted by gsujeff55
without wastegate line modification, none of these guys are holding 23psi above 5500....
and no, 113 is high for pump gas and stock turbo.....it can be done, but its HIGHLY unlikely.
Ive done just about every bolt on imaginable....and still only hit about 111 on pump gas.
and no, 113 is high for pump gas and stock turbo.....it can be done, but its HIGHLY unlikely.
Ive done just about every bolt on imaginable....and still only hit about 111 on pump gas.
Jul 27, 2005, 08:53 AM
#18
That was on c16 and 27psi falling to 22. You can't run even close to that on 93 octane....this was also with a minor timing advance. Actually, 350whp is close to the top of the spectrum for a cammed pump gas car.....of course, we are talking about 03-04 cars....the 05 and MR are a tad higher because of the better flowing turbo.
I am running basically the 117mph map on 93 now with the alky....toned down the boost a bit, because its really not safe to run that much boost for more than 1/4 mile at a time with some cool down.
I am running basically the 117mph map on 93 now with the alky....toned down the boost a bit, because its really not safe to run that much boost for more than 1/4 mile at a time with some cool down.
Jul 27, 2005, 08:57 AM
#19
Originally Posted by gsujeff55
That was on c16 and 27psi falling to 22. You can't run even close to that on 93 octane....this was also with a minor timing advance. Actually, 350whp is close to the top of the spectrum for a cammed pump gas car.....of course, we are talking about 03-04 cars....the 05 and MR are a tad higher because of the better flowing turbo.
I am running basically the 117mph map on 93 now with the alky....toned down the boost a bit, because its really not safe to run that much boost for more than 1/4 mile at a time with some cool down.
I am running basically the 117mph map on 93 now with the alky....toned down the boost a bit, because its really not safe to run that much boost for more than 1/4 mile at a time with some cool down.
Jul 27, 2005, 09:04 AM
#20
111 is 310-320 whp? by what calculations? you know we have a 3400lb car right?
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
Jul 27, 2005, 09:06 AM
#21
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Originally Posted by gsujeff55
111 is 310-320 whp? by what calculations? you know we have a 3400lb car right?
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
Jul 27, 2005, 09:20 AM
#22
Originally Posted by gsujeff55
111 is 310-320 whp? by what calculations? you know we have a 3400lb car right?
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
wit 295 whp on a DD dyno i trapped 109.01 with a 1.70 60' time. thats over 320whp on a dynojet(what i assume you are going by) and that is a pretty low short time(increases trap).
Actually, once you get to short times like that, they can often DECREASE the mph, because you have less time to accelerate. Someone with a 2.0 60' will not see this phenomenon when improving to a 1.80 60', but if you go from a slightly spinning 1.75 to a fully-hooked 1.70 on the same shifting in the same conditions, you would potentially see a LOWER trap with a BETTER ET. This is not always the case, but I've seen it happen. I ran a 12.1 at 110 (old 1G) on a 1.62 60', then ran a 12.1 at 113 on a 1.78 60'. This was at 2 different tracks in the same month...one that hooks like crazy and another that was slick as could be (Rockingham). Again, not the best basis for making a theory, but one to keep in mind regardless.
Jul 27, 2005, 01:22 PM
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Originally Posted by gsujeff55
without wastegate line modification, none of these guys are holding 23psi above 5500....
and no, 113 is high for pump gas and stock turbo.....it can be done, but its HIGHLY unlikely.
Ive done just about every bolt on imaginable....and still only hit about 111 on pump gas.
and no, 113 is high for pump gas and stock turbo.....it can be done, but its HIGHLY unlikely.
Ive done just about every bolt on imaginable....and still only hit about 111 on pump gas.
Jul 27, 2005, 01:31 PM
#27
Originally Posted by gsujeff55
Thats called you using the CRAP stock boost gauge, or an aftermarket boost gauge that is off.
Jul 27, 2005, 01:54 PM
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Originally Posted by gsujeff55
Thats called you using the CRAP stock boost gauge, or an aftermarket boost gauge that is off.
Jul 27, 2005, 02:49 PM
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I run 1.59 bar (23psi) on my car and havent had any trouble... When i asked the same question everyone said it was safe for me and maybe to just get some arp headstuds... Must be cuz i have more mods... or they just want me to blow up my car lol