The V8 Owners Forum -

Thanks for that, looks exactly what I need.

That's a good point. My fuel gauge reads quarter full on empty but I know the tank was modified to accept the Jag LSD and suspension so I know the sender unit needs looking at. I went for a Smiths Flight water temperature gauge with "microprocessor controlled stepper motor needle movement" and it st...

I've had some experiences in the past, on a TR6, with voltage regulators so that was one of the things I checked first!

Mal

That's interesting, I've just fitted a new gauge, which I know is compatible with the sender unit, and that's reading about 10 degrees higher that the MS as well. I've rewired the fans to come on as a pair (rather than MS for one and a manual switch for the other) and with the new alloy radiator, it...

The Dyno session included fine tuning the map with the lambda sensor so i think the emissions are fine. I am checking the car temp gauge as I think it may be reading high and my lap top battery is shot so I can't get real time temp data from the MS or start any logs. Hopefully with all the help and ...

That's interesting, thanks. I'll get a new rad cap. Its the small format rad cap and its proving difficult to identify from parts drawings as they don't always specify size. I sourced the last one by taking it to a car parts supplier and getting them to find one. I'll also look at blanking off the s...

Yes, it's slightly higher as the rad cap would have originally fouled the distributor cap. Of course now I've converted to MS, the distributor cap is no longer required so I will move it to its highest point. I would have preferred to have the expansion tank higher but it's at it maximum height now....

The small pipe from the pump is the supply to the pre heater on the plenum chamber, the return from the pre heater used to go to the small inlet connector on the manifold. I have bypassed the pre heater so connected the pipe from the pump straight to the manifold. The radiator caps are all standard....

Hi,

Any idea where an engine number A13195 would have originated from? Currently in a MGB V8 roadster converted around 2000/01 and f itted with Vittese EFI.

Thanks

Mal

Thanks all for the feedback. I also feel the radiator is the weak link and have decided on Serck Motorsport as I can get one on next day delivery. It seems that not many suppliers have MGB V8 rads in stock although I guess they are hardly high demand items. Fingers crossed for a test drive on Sunday...

It's actually a Vitesse plenum that's had a section cut out and rewelded. The inlet trumpets were also shortened to suit. I gave it a clean up and respray while it was off the car. If you look closely, you can see the TPS bracket that I made from the drawing you supplied me a while ago. Thanks again...

Thanks for the responses, much appreciated. The fans are are both sucking from the grill, through the rad and into the engine bay. One fan is controlled by the MegaSquirt, the other is manual switch on the dash. Hopefully the sketch and pic might help explain the current set up. It's not overheating...

Hi all, Just finished converting my MGB v8 Roadster from flapper EFI to MegaSquirt and had the car Dyno tested at 228bhp. That's the good news.... However, I'm finding that the cooling system is struggling to cope and the temperature gauge is just under the red at tick over. Both fans just about hol...