Subject	in response to your "how" - curious for your thoughts..
Posted by	Scotts94z32 on May 04, 2004 at 4:44 PM
	This message has been viewed 42 times.
In Reply To	14psi max. MAX. (n/m) posted by nixit on May 04, 2004 at 04:28 PM
Message	This is actually good to bounce off of you. Think stock: cast iron, pre-cats, bends, poor flow, and small diameter. More material to hold more heat and obviously reduce flow. Non-stock (downpipes and testpipes): steel or some sort, smooth bends and transitions (let's assume this for now), no pre-cats - therefore better heat dissipation or "uncorking the bottle". Although you do want some degree of heat to keep the flow (your scavenging comments ring bells of yesteryear), the added heat retention translates all the way through the system, back up to the turbos. Hot turbos --> decreased efficiency --> hotter inlet temps to IC --> hotter IC outlet temp --> hotter TB air charge --> increase in chance for detonation. Heat and heatsoak increase the risk/probability for detonation with all other factors held constant is my argument. i.e. I wouldn't suggest running MORE boost b/c of a well-designed exhaust, but one could extrapolate that it could be done more safely, stock vs non-stock. Your comments? SS ____________________________________________________________________________________________________ You bark like a big dog, yet you pee like a little puppy.
Follow Ups	How high can you boost safely with the following setup >> - roni_54 16:00:24 05/04/04 On stock turbos, 15psi is the highest I would recommend. - Milo (San Antonio, TX.) 16:07:02 05/04/04 14psi, rwhp isnt an indication of driver ability. (n/m) - nixit 16:08:46 05/04/04 Seconded, I run <12 psi on pump gas. (n/m) - Chip(GMS Racing) 16:31:11 05/04/04 depends a lot on your tuning, CAS, "ECU Upgrade" profile,etc - Scotts94z32 16:15:14 05/04/04 Re: depends a lot on your tuning, CAS, "ECU Upgrade" profile,etc - roni_54 16:22:22 05/04/04 14psi max. MAX. (n/m) - nixit 16:28:18 05/04/04 in response to your "how" - curious for your thoughts.. - Scotts94z32 16:44:00 05/04/04 and it relates to what you say here: - Scotts94z32 16:54:21 05/04/04 This link also solidifies your points Scott....>>> - 5150Z 17:46:59 05/04/04 No it doesn't. - tonyflagg 18:00:56 05/04/04 but Greg's point is that the stockers can put out 19psi and - Scotts94z32 18:27:00 05/04/04 thanks for the link, George...good link... (n/m) - Scotts94z32 18:28:24 05/04/04 I run 15-16 on "low" and 17.2 or less on "high"...I used to - creamofthecrop7 20:40:23 05/04/04 I'm running close to the same set up - Fuzznutz 16:41:25 05/04/04 17psi... You crazy (n/m) - bb300z(NoVA) 18:01:06 05/04/04 really? - Fuzznutz 19:36:53 05/04/04 I know SGP says it's ok... but I still think your nuts. (n/m) - bb300z(NoVA) 21:03:18 05/04/04 ahhh... - Fuzznutz 21:39:29 05/04/04 i have run 15-18psi on stock turbos w/ 94 octane gas - Pure-Evil 21:10:44 05/04/04
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