Detonation under boost fixed....
Thread Starter
Melting Slicks
Joined: Jul 2004
Posts: 3,277
Likes: 32
From: Mission Viejo California
Detonation under boost fixed....
Hey guys. I was having a problem with detonation above 3500 rpm under wot. As soon as a hint of detonation set in, I'd back off it.
I figured that it was either fuel or timing related. The btm had no effect on it(adjusting for more retard) so I checked the fuel system. I checked the t rex and it wasn't getting any juice. Sure enough, one of my wires had frayed completely(I couldn't believe it!).
I rewired it up and now I'm back in business.
I really wish that they would have done it right the first time and went with a 255 walboro in tank pump with a walboro booster pump. That would be good enough for pretty much any street blown motor up to about 500 at the wheels...
I figured that it was either fuel or timing related. The btm had no effect on it(adjusting for more retard) so I checked the fuel system. I checked the t rex and it wasn't getting any juice. Sure enough, one of my wires had frayed completely(I couldn't believe it!).
I rewired it up and now I'm back in business.
I really wish that they would have done it right the first time and went with a 255 walboro in tank pump with a walboro booster pump. That would be good enough for pretty much any street blown motor up to about 500 at the wheels...
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Glad to hear you fixed the issue. This is exactly the reason I ditched the dual (aux) pump setup and went with a single Walbro 255lph. Someone preached to me about the importance of this. I'll pass on your experience to everyone.
2nd Gear
Joined: Aug 2004
Posts: 2
Likes: 0
Installed a new ATI Procharger. Have about 30 minutes on it before the T rex quit running and failed the in-tank pump. When I hit the T Rex it started running again. I don't want to chance blowing my engine on a lousy pump. Since the in-tank pump is destroyed, what is the best course of action? Please help!
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Originally Posted by sahein
Installed a new ATI Procharger. Have about 30 minutes on it before the T rex quit running and failed the in-tank pump. When I hit the T Rex it started running again. I don't want to chance blowing my engine on a lousy pump. Since the in-tank pump is destroyed, what is the best course of action? Please help!
www.racetronix.com
Get the GSS340 255lph in tank pump w/ harnass
30 minute install for intermediate level experience and minimal tools.
Race Director
Joined: Feb 2002
Posts: 11,268
Likes: 14
From: Honolulu, HI
Originally Posted by sahein
Is the Walbro GSS340M sufficient without a boost pump for use with an ATI Procharger? Is anybody using this setup?
