Tsr cadwell

Tsr have fitted a modded metering head , and when i mentioned the wur they did not seem to keen on doing this mod , i know not why ! The engine conversion is a tried and proven one , and i take it they know what they are doing . I'm very much in their hands and with what they tell me . They say that the pressure checks out ok , but it could be that not the right amount of fuel is not getting there , does this make sense ?

 

Yes ... have they checked the lift pump and all the pumps` wiring ?

What`s the static ignition timing set at ?

 

You can't get enough advance? Doesn't this point to the cam timing being out?

 

Don't know , but like i said i assume they know what they are doing . I've used Tsr from the old days when Tim was in charge and have always received good service off them .

 

TSR - so have I but not since the last ownership change, not sure if any of the old team are still there ?

I just wondered how far away from the standard KR 6` it was / was trying to be set ?

The experience that chrismc referred to I also know about, that`s why I said to check that the lift pump / wiring is 100%

 

I've had problems with the lift pump before , and it's usually easy to spot because the main pump becomes noisy as it struggles to suck fuel , not happening in this case . They are replacing the main pump today , will know more after lunch . Cant really see what else it can be because everything else is in the fuel system is new . Will post when I've spoken to them , here's hoping !

 

do they have the gauges to check the fuel pressure?

 

Yes all been checked and ok , they seem to think it's the amount of fuel been delivered not the pressure that is the problem

 

it will be interesting to see what the actual problem is with your car,
if the pump was faulty wouldnt it show up when the metering equipment was connected?

also why wont TSR adjust the pressures from the WUR?

do you know what they have done to the metreing head to upgrade it or is it top secret?

 

Whilst the system and control fuel pressure may appear ok at idle, it's further up the rev range that needs looking at.

If the supply is weak and cannot match demand under heavy load it will go lean and the system pressure will be seen to drop off...

If the fuel pressure is holding fine then it would point at the metering head itself or duff injectors.

Not being able to add sufficent ignition advance could be an incorrectly timed exhaust cam, wrong dizzy bolt holes being used, though the fuelling system needs to be proven firstly

 

I understand what you are saying , but wouldn't they know this as well ? It is a tried and tested conversion which they have carried out numerous times before. With all that the car has had done to it they were expecting for it to make good figures ! To put thing in prospective the car as run a pack A head with no other mods for the last 15 years it rolling roaded at 150 when fitted . I have now had a full conversion with everything under the sun been done to the car , and it's only making 152 !!!!!!!!!!! well peeed off !!!!!!!!!!

 

I'm sure they will get there with it.

Quite well down the line of fault diagnosis to changing a fuel pump though!

Keep us informed with any updates...

My jetta 2L 16v with a stock head and kr exhaust cams made 165bhp and 140lbs/ft so something is clearly amiss with yours..

 

Thanks for your valued input , and will keep you posted .

 

Loach, could you post your plot of whatever measurements where taken on that day.

 

Sorry no , the car is 150 mile away . Either way solved or unsolved i will ask for a print out and post . Thanks for your interest .

 

You can PM this to me if you wish.

 

Have TSR made any progress yet?

Must be frustrating for you, as their engine conversions arent cheap[:^(]

 

there is no progress as yet just waiting on the call.

 

Phoned this morning , Rob was out and Tom was working on a car and unable to come to the phone . So waiting on a call , will post as soon as i know anything .