chuck8313BTSDS

I know theres a video section so if this gets moved, so be it. Just thought a few would like to hear what knock sounds like at 1.7bar. One of my fuel pumps quit on me. My pressure gauge is the left one. Middle one is boost. Notice the fuel pressure gauge did not increase like the boost gauge. Lucky for me, I run low 10AFR and water injection. The motor is running and idles fine, but for how long? Seals are Atkins with the small ends.

Knock is at the top of 3rd gear. I let off as soon as I heard the thunder. Then gave it some gas in 4th gear to see if the motor was OK. Then let it idle for 10 minutes. Restarted then drove it, everything "seems" good.???

http://media.putfile.com/Rotary-knock-at-17bar

kabooski

well right at where it knocked it was 13.00 AFR
not good needs to be no more then 11.7 on race gas

fastcarfreak

well, yeah, im sure he woudlnt have had that problem if one of his fuel pumps didnt fail... lol

good thing everything is ok

mono4lamar

iTrader: (32)

thats why im going with a single pump. you lose that your car just dies oh and adam are you running the aeromotive a1000? i cant remember if you said you were... are you using the aeromotive computer pump computer? pm me if you dont want to respond here.

-Lance

chuck8313BTSDS

problem ended up being the intank fuel pump screen was clogged. Posted some pics in the 2nd gen section. Made a few more passes and the motor is still alive...

Tofuball

Awesome that the motor lived.

I've taken apart engines like that and seen that instead of the apex taking the hit, the rotor face itself is totally dented in.

I can get some pics if you would like

fastcarfreak

i purchased the aeromotive a1000... waiting for it to arrive so i can install it... im not gonna be running the pump computer because i dont drive the car that often, so im not too worried about it being too long lasting...

fastcarfreak

i can confirm this... one of my motors went this way... completely trashed the entire motor... because it pinched the apex seals and they shattered and imbedded themselves into the rotors, housings and the irons were all scratched up...

mono4lamar

iTrader: (32)

i saw 14.52 on the O2... i played the video many times.

chuck8313BTSDS

Knock on wood!!!

Motor ran it's best 10.9 at 133.93 Saturday night. Still has a bit in her. Yes I agree the motor should be dead by now but she is holding together. I hope till after Nopi anyways.

It really does not matter what one does to prevent bad thing from happening, if you do it long enough something bad is going to happen. It's just the way the world works. I got lucky and only made one pass with the low fuel pressure. Having a good fuel pressure gauge saved me big time.

http://www.rcmracing.org/amupload/10.9133.93.wmv

incar of the 10.9 pass. spun the wheel in 2nd gear, watch the right wall.

chuck

mono4lamar

iTrader: (32)

nice pass! did you check compression yet? im not saying your motor has it. im always just curious. infact i have to check mine next time i warm up my car.