Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

Christ · 12-10-2009, 03:34 AM

PES' wiki page on the mod:

Directory:Gadgetman Groove - PESWiki

It appears that basically, all that's being done here is adding approx a 3mm deep groove in front of the lower part of the throttle plate, and behind the upper.

So what's really happening is a trick way of telling the ECU that you're at X throttle position while you're allowing the same amount of airflow as Z throttle position. Other than that, I can't say for sure. I may give it a shot on the spare TB I have for my wife's Saturn, though. It takes about 10 mins to put the TB on, so that shouldn't be a problem.

EDIT: OF course, if I do this, and there is no change/negative change, the guy's just going to say I did it wrong. It won't be an extremely definitive test, either. I'll see about using my datalog tool to check MAP and TPS values, etc.

EDIT again: Wouldn't you know, I can't find my Dremel. Gonna have to buy another one, again, it seems. O well, excuse to go to Harbor Freight.

12-10-2009, 03:34 AM	#30 (permalink)
Christ Moderate your Moderation. Join Date: Nov 2008 Location: Troy, Pa. Posts: 8,919 Pasta - '96 Volkswagen Passat TDi 90 day: 45.22 mpg (US) Thanks: 1,369 Thanked 430 Times in 353 Posts	PES' wiki page on the mod: Directory:Gadgetman Groove - PESWiki It appears that basically, all that's being done here is adding approx a 3mm deep groove in front of the lower part of the throttle plate, and behind the upper. So what's really happening is a trick way of telling the ECU that you're at X throttle position while you're allowing the same amount of airflow as Z throttle position. Other than that, I can't say for sure. I may give it a shot on the spare TB I have for my wife's Saturn, though. It takes about 10 mins to put the TB on, so that shouldn't be a problem. EDIT: OF course, if I do this, and there is no change/negative change, the guy's just going to say I did it wrong. It won't be an extremely definitive test, either. I'll see about using my datalog tool to check MAP and TPS values, etc. EDIT again: Wouldn't you know, I can't find my Dremel. Gonna have to buy another one, again, it seems. O well, excuse to go to Harbor Freight. __________________ "¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı" Last edited by Christ; 12-10-2009 at 03:39 AM..