SC 400 and Canems ecu

[nigegas]

I'm now booked in with Lloyd specialist for the end of February for the Canems ECU upgrade on my SC 400 Chim
Bosch EV6 injectors aem wideband sensor and a rolling road session

One question I do have is what fuel regulator are u guys using as I'm told to ditch the BEGI regulator that's on
At the moment ?.

Looking forward to see what the end results will be BHP wise .

[pwd95]

Had the Canems conversion done with Lloyds last year on my Chim 400. Those boys are simply brilliant & the conversion itself transformed the car. Noticeably stronger but able to burble about in 4th/5th gears all day long. Will be handing my current 450 to them sometime. Probably next year now.

[Richard 858]

On my 450 with the larger C38 charger from SC Power & Bosch Green Giant injectors I still have the standard 2.5 bar regulator & still running on 14cux, standard distributor & single coil. I believe the greater spray pattern of the Bosch injector negates the need for greater fuel pressure.

[BoostedChim]

I had an issue with my standard regulator over 11psi of boost, it would completely close off the return line and raise the fuel rail pressure to be the same as the pump at 5 bar! The standard regulator was never designed to see boost so I think it copes quite well considering. I didn't fancy a BEGI so I searched for a Bosch regulator that was fitted to a boosted car from the factory and settled on a 944 Turbo regulator. It works great, fixed the rich fuelling and looks the same as the orginal.

3.0 Bar Fuel Pressure Regulator (FPR) 944 Turbo

[nigegas]

BoostedChim said:

I had an issue with my standard regulator over 11psi of boost, it would completely close off the return line and raise the fuel rail pressure to be the same as the pump at 5 bar! The standard regulator was never designed to see boost so I think it copes quite well considering. I didn't fancy a BEGI so I searched for a Bosch regulator that was fitted to a boosted car from the factory and settled on a 944 Turbo regulator. It works great, fixed the rich fuelling and looks the same as the orginal.

3.0 Bar Fuel Pressure Regulator (FPR) 944 Turbo

Would this be a straight swop if I removed the begi regulator are the fuel hose fittings the same or are there different
Options
Nige.

[NickOrangeTVR]

Agreed on pressure issue - we had to move to rising rate fuel regulator, before we had it at top end fuelling became a real issue. (and think similar to others above 10psi it became a requirement)

[SILICONEKID345HP]

NickOrangeTVR said:

Agreed on pressure issue - we had to move to rising rate fuel regulator, before we had it at top end fuelling became a real issue. (and think similar to others above 10psi it became a requirement)

Does it become difficult to map with a rising rate regulator ?

[JimTC]

pwd95 said:

Had the Canems conversion done with Lloyds last year on my Chim 400. Those boys are simply brilliant & the conversion itself transformed the car. Noticeably stronger but able to burble about in 4th/5th gears all day long. Will be handing my current 450 to them sometime. Probably next year now.

At risk of highjacking this thread, was your 400 fitted with a standard cam or something more edgy?
Thanks.

[pwd95]

JimTC said:

At risk of highjacking this thread, was your 400 fitted with a standard cam or something more edgy?
Thanks.

Standard cam, but they map the system to your specific car. So not only is the fuelling spot on in varying conditions but the spark timing is too. Something that you can't do with the clockwork distributor. It just gets the best out of your engine. New wiring loom, so the rats nest in the footwell vanishes & in it's place you get a very neat ECU installation behind the battery that takes care of everything... You can plug the laptop in & adjust the idle or what temp the cooling fans come on etc.
It really is fab & the Lloyd Brothers installation is as good & professional as you'll get anywhere.

[BoostedChim]

nigegas said:

Would this be a straight swop if I removed the begi regulator are the fuel hose fittings the same or are there different
Options
Nige.

It's the same fitment as the standard unit so you'll probably have a adaptor in your fuel rail you'll need to remove. The question then is was the return fuel hose shortened when the BEGI was fitted if not then it should be a straight swap.

[NickOrangeTVR]

SILICONEKID345HP said:

Does it become difficult to map with a rising rate regulator ?

no, it doesn't impact tuning at all - it just makes sure the pressure is enough so that the injectors can feed the required amount. So yes it means mapping needs to change, but it doesnt make it any harder.

[Sardonicus]

BoostedChim said:

I had an issue with my standard regulator over 11psi of boost, it would completely close off the return line and raise the fuel rail pressure to be the same as the pump at 5 bar! The standard regulator was never designed to see boost so I think it copes quite well considering. I didn't fancy a BEGI so I searched for a Bosch regulator that was fitted to a boosted car from the factory and settled on a 944 Turbo regulator. It works great, fixed the rich fuelling and looks the same as the orginal.

3.0 Bar Fuel Pressure Regulator (FPR) 944 Turbo

Thats the same part number as the 2 BMW ones I have you can pick them up for peanuts the one on my car is new old stock £5 gives me a little more scope/duty cycle buffer with my injectors

[AdriaanB]

I've just booked my Chimaera 500 Taraka in with Lloyds as well - very much looking forward to better driveability and reliability with the spring/summer to come. Will keep you posted on the results!