View Full Version : 1.7 td engine tuning and fitting dump valve
novaboz
09-08-09, 02:12 PM
hello:) i was wondering what sort of power these would run at with a front mount intercooler,fuel turned up,boost turned up and a straight through exhaust??
also i no dump valves are diffrent on dervs, so how do you fit one? for that matter where could you get one
cheers
All TD tuning info is in here (http://www.pngclub.com/forum/showthread.php?t=84830)
Brettski
09-08-09, 05:22 PM
i have a td dump valve removed from my cavalier its a bailey dv26 and it works via an electronic solinoide and micro switch pm me if interested:thumb:
i have a td dump valve removed from my cavalier its a bailey dv26 and it works via an electronic solinoide and micro switch pm me if interested:thumb:
*cough cough*
Re our conversation at billing??? lol
Brettski
09-08-09, 06:46 PM
dude stop being lazy and pm me and i hav jus removed my white washer from the fuel pump hav yet to try the results and my intercooler is staying now but i am chaseing up a charge cooler for ya made by pace if ya interested also hope your cav is all good is it on the road btw?:confused:
novaboz
10-08-09, 01:32 AM
cheers so farr :)
Derv engines don't have throttles like a petrol engine so a petrol DV won't work, unless you rig up some form of vacuum actuator that activates on off-accelerator. Even then it will ideally need to be adjustable instead of on/off as the last thing you want is the DV opening and dumping all the air out the turbo when you feather the accelerator.
i assume you are aware that a bump valve on a diesel will make it slower??
davidfox280585
10-08-09, 11:08 PM
didnt notice any difference with dump valve on and off on my td thoughthey aint hard to make work, i could knock a kit up for about a tenner might even put one on my astra estate just for the giggle
novaboz
11-08-09, 12:00 PM
sort me one out mate haha :P
i was running 25psi in my veccy 1.7td with the pump turned two turns and a straight through! was rolling roaded at 98.7bhp/186ft/lbs of torque then fitting a front mount which inproved it more!
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