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Engine RMP goes low when braking hard

2scoops

By 2scoops
in Joyner UTV SxS Forum

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2scoops

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Man, I am itching to gake my ride out! Back on topic. As some of you know I am investigating better braking. As I have been jamming on the brakes harder than usual as of late while testing the new set up, I have notice the engine RPM getting very low during hard braking. It acts almost as if the engine wants to die. Does anyone know what causes this? It hasn't caused it to die yet, but a good running car should'nt do this.

Kinarfi Veteran

Kinarfi

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  On 1/22/2011 at 4:53 AM, 2scoops said:

Man, I am itching to gake my ride out! Back on topic. As some of you know I am investigating better braking. As I have been jamming on the brakes harder than usual as of late while testing the new set up, I have notice the engine RPM getting very low during hard braking. It acts almost as if the engine wants to die. Does anyone know what causes this? It hasn't caused it to die yet, but a good running car should'nt do this.

One of the problems that need correcting on Troopers is the gas supply, it may be that the gas in the tank is all moving forward as you break and it uncovers the outlet port and the pump gets starved and the fuel pressure drops. On mine, if I was going down a steep hill with less the about half a tank, the engine would actually die, there is a topic dedicated to this problem, if it hasn't been deleted. To cure this, I recommend installing a surge tank that is filled by a separate pump from the main tank and then the pump is fed from the surge tank and the return also goes to the surge tank, It would only need to be about a quart, but mine is over a gallon and has a circuit to turn the fill pump on and off.

If you're interested in doing this, I'll look for the information,

Kinarfi

http://www.utvboard.com/topic/629-fuel-tanks-mods/page__view__findpost__p__2466

2scoops Proficient

2scoops

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  On 1/22/2011 at 6:14 AM, Kinarfi said:

One of the problems that need correcting on Troopers is the gas supply, it may be that the gas in the tank is all moving forward as you break and it uncovers the outlet port and the pump gets starved and the fuel pressure drops. On mine, if I was going down a steep hill with less the about half a tank, the engine would actually die, there is a topic dedicated to this problem, if it hasn't been deleted. To cure this, I recommend installing a surge tank that is filled by a separate pump from the main tank and then the pump is fed from the surge tank and the return also goes to the surge tank, It would only need to be about a quart, but mine is over a gallon and has a circuit to turn the fill pump on and off.

If you're interested in doing this, I'll look for the information,

Kinarfi

http://www.utvboard.com/topic/629-fuel-tanks-mods/page__view__findpost__p__2466

Thanks Kinarfi. I will try filling the tank to the top & seeing if it goes away.

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