Recent content by lxsv8

My raptor centrifugal SC on v8 was achieving 310rwhp on 8 psi! Boosts from around 2500RPM to redline (and redlines to rev cut very quickly through the gears - auto trans)

Thank for all the replies. I have some good avenues to follow now. I will post results for future reference after I spend some time (and money) with another tuner. I will show him these posts and thankyou Erol for your time on the phone. I believe you may have nailed the problem with your...

Definitley has a return line!

The way I understand it (please correct me if I am wrong) The rising rate regulator is placed in the fuel return line in series with the stock regulator and used to increase the pressure of the fuel delivered. Factory is about 35psi and a RRFR enables higher pressures to be delivered at...

RMS - My local mechanic on the GC (and I believe you know him well) is fitting a high speed stally very soon (2800) Will this change the unlocking RPM of the torque convertor. I am assuming the 2200RPM you mentioned is the stock lockup.

This IS exactly what happens and yes if the brakes are lightly applied the surging stops immediately. So how can I fool the ecu (or piggyback) into disabling fuel cut? Just rereading your reply. - So if I vent to atmosphere I should be okay and the surging will stop as the AFM will think open...

RMS I have removed both BOV and bypass valves but same problem, however was not too keen to do this because of possible compressor surge so I have put them back in. I had not thought about venting to atmosphere as both these are fed back into the system after the AFM. That should not make a...

The fuel pump is a walbro 255l/hr and a sard rising rate regulator. -however these were put on after the problem and did not change a thing. How do I get more fuel into the car when I decelerate?

Hate to bring up an such an old thread but was the problem solved? It is sort of similiar to my problem but without the actual stalling.

Rod the AFM is before the blower.There is a plumbed back adjustable BOV that you can not see in the picture between the throttle body and the input to the blower (after the AFM) and another one (bypass valve) between the output of the blower and the input of the blower. (also after the AFM)...

UPDATE. The car seems to be surging as soon as the car is backed off from most speeds now.(not just after boosting) Especially noticeable at cruising speeds of 110kmh (65mph) straight after the accelerator is released and the car slows down without braking. Could this be a vacuum problem? How...

Help please! Question for those in the know. I have a centrifugal supercharger fitted to my 1uz in a soarer. If the car is driven sedately I have no issues, however as soon as the foot is planted and I achieve boost the car will jerk and RPM's seem to hunt upon de-acceleration. If the foot is...

Thanks Tim. Seriously considering that smaller pulley now to see what 12psi will do!

inside of this

New figures - running at 8psi (310hp at wheels) Setup looks like this