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**Halon** · 02-28-2017

Little Update. Got the updated tune in. He turned up the duty cycle on the boost controller and didn't make any difference at all. So I started to wonder what spring (or springs since these can have up to 3 springs installed) did I actually have in my WG. Looked in my tool box and found the 7psi spring that originally came in it, and I found the 5psi spring that I bought along with a 10psi spring, that I thought I installed together. Also found an 11psi spring that I didn't even know I had.

SO I pulled the WG off and cracked it open. Only one spring was installed (assume it's the 10psi spring). Damn, this whole time I've been thinking I had both the 10 and 5 in there so I had 15psi of spring in there. Dumb mistake

What I find very interesting is how it tapers down to 20psi, and they always say the general rule of thumb is you can only go about twice your WG spring. So that pretty much seems right on the money in this case.

So I'm going to hit up Vlad to see what he prefers I put in there. With the springs I have, I can combine them to make 15psi, 16psi, 18psi, or 21psi. I'd like to just throw the 21psi combo in there because why not I don't plan to boost lower than that. But I think Vlad wants less because he'd like to have a safe pump gas tune which would be closer to the 16-18psi range.

So Andrew you had asked why the boost is tapering the other day, this might be the smoking gun!

02-28-2017	#1453
Halon Pewp Champion Join Date: Nov 2003 Location: Blaine Drives: Teh Bean Posts: 12,309	Re: Project Lex Little Update. Got the updated tune in. He turned up the duty cycle on the boost controller and didn't make any difference at all. So I started to wonder what spring (or springs since these can have up to 3 springs installed) did I actually have in my WG. Looked in my tool box and found the 7psi spring that originally came in it, and I found the 5psi spring that I bought along with a 10psi spring, that I thought I installed together. Also found an 11psi spring that I didn't even know I had. SO I pulled the WG off and cracked it open. Only one spring was installed (assume it's the 10psi spring). Damn, this whole time I've been thinking I had both the 10 and 5 in there so I had 15psi of spring in there. Dumb mistake What I find very interesting is how it tapers down to 20psi, and they always say the general rule of thumb is you can only go about twice your WG spring. So that pretty much seems right on the money in this case. So I'm going to hit up Vlad to see what he prefers I put in there. With the springs I have, I can combine them to make 15psi, 16psi, 18psi, or 21psi. I'd like to just throw the 21psi combo in there because why not I don't plan to boost lower than that. But I think Vlad wants less because he'd like to have a safe pump gas tune which would be closer to the 16-18psi range. So Andrew you had asked why the boost is tapering the other day, this might be the smoking gun! __________________ B-Man - FlexFuel Mafia 1991 TSi AWD E85 - BEP S362, DSMLink V2, Built 2.0L Idle Vid 628hp Graph 541hp Vid 10.93@137 Vid 1992 SC300 E85 - BW 84-75, Vlad Infinity, NA-T, 6spd Idle Vid 709hp Graph 709hp Vid 11.1@131 Vid 2006 Bayliner 195 - Carbed 5.0 Top Speed Test Last edited by Halon; 02-28-2017 at 10:26 PM..