769 replies to this topic

[Duncan VXR]

Will the exhaust have no cat or the option of no cat?

It will, extra silencer Dave is looking at trying in the cat section

DG

[Bumblebee]

Any updates?

[Dave H]

Update! 

 

The new engine loom is now wired in to all the various sensors, Stack and ECU etc. It still needs binding to tidy it up a bit. 

 

I have driven around my car park and all seems well from this limited test, the ATB diff works!!!

 

 

 

New boost pipe made. The inlet to the turbo has been routed the other side of the radiator hose off the head to move the silicon hoses away from the exhaust manifold which also includes a slightly longer 

inlet pipe from the filter.

 

 

ECU, boot relays, charge cooler pump and 044 pump relays etc.

 

 

Heat shields to fabricate next and bulkhead panel.

 

Dave.

[Bumblebee]

What's the plan when the cars complete? I.e road/track?

[Dave H]

Front clam is now back on and I have made the heat shied for the turbo, this is made of S/S and mounted to the bulkhead there will also be a section mounted to the engine. 

Also fitted is the bulkhead access panel.

 

 

I have also bound the loom up with a fleece loom tape matching the original.

 

[Bumblebee]

Looks very tidy

[Nev]

Gawd that car looks tidy. You'd have a heart attack if you saw Nipper I think :o/

[Dave H]

The car is now back on the road, not without a couple of problems, one the driveshaft seals decided to leak but that was easily fixed.

 

More of a problem was that on the first road test the engine was cutting out quite dramatically shortly after producing boost, initially I thought I had plumbed up the boost solenoid wrongly so changed it and tried again, it didn't cut but didn't pull as strong as I expected. I plumbed in a boost gauge and tested again, 10 psi as opposed to the 21 psi I was expecting. When connected the original way it was as if the waste gate  was not connected at all making 27 psi and hitting the boost limit in program and cutting ignition and fuel. It was very late at night by this time so a problem for the next day.

 

After an email to Chris at efi parts and a chat on the phone it was established I had plumbed the solenoid correctly but perhaps due to some modifications I have made to the piping and a different charge cooler it was seeing more boost. The duty cycle of the boost solenoid was reduced within the ECU until the desired boost was achieved. Adjustments here may be useful in the future to control how power is delivered as its a bit on the savage side when the roads are wet!!!! The last run on the dyno before the trigger wheel fell off was 390 BHP and 386 lbs of torque so we should be around that figure now and a trip to the dyno is on the cards in the near future to optimise things.

 

Yesterday I fitted a wideband AFR to check the mixture was within limits but its been too wet to test the car on boost till tonight so I have been tidying a few more bits up and setting the rear toe using poles and string.

 

Finally tonight I have found some dry tarmac and AFR's are fine on boost. It goes well !!!!!

 

Still a number of things to do but at least I can get some miles on it.

 

Dave.

 

 

 

 

 

 

 

[Bumblebee]

Is there not an option to run 2 maps on the adaptronic? 1 for dry and 1 for wet? Or boost per gear?

[MrSimba]

Amazing Dave! Looking very good indeed! To think you've pulled the whole car apart, rebuilt the engine, re-machined the flywheel, fitted an LSD, completely re-wired the engine, re- mounted ECU & all relays, fabricated custom header tanks, swirl pot, breathers, intake, access panels, re-worked fuel pumps & lines, fitted a pro alloy CC, suspension refresh, and probably quite a lot else 'while you were there' I reckon you've probably put 250 hours plus into getting the car back to where it is now! It was 'good' before but it's just epic now!!! I know Dave's planning on getting the car out as much as he can over the summer and the attention to detail he puts into everything will be apparent to all when they see it I'm sure! Well done again Dave! ::

[JG]

When do you buy it back Simon?

[Dave H]

Yes Aimy I'm planning on switchable maps.

 

It is very docile to drive off boost and smoother than my stage 2 car both on and off boost, its just when it spools up there is more power than grip in the damp.

 

Thanks Simon, will be bringing it to show you soon!!!

 

Dave.

[Bumblebee]

Sounds good Dave!

[Gedi]

I need this car in my life

[Sc0rian]

wow just gone through this whole thread. what a epic car, i'm glad you've taken it on and finished it off. It's one amazing build, what I'd do to get a spin in that :-). 

[VXT Tim]

Any news on the exhaust?

[Dave H]

Progress so far on the silencer, 28" long x 7" diameter. I have made it so I can swap outlets to see if it makes any difference to the noise, will be trying a single outlet to start with.

 

Once I get this finished and in position I will see what room is left for a "pre silencer" and make accordingly.

 

Packing is from Thermal Velocity.

 

Dave

 

[Nev]

How many chambers in it Dave? I think mine had 3 chambers, but it's noisy as hell. Noise is really big issue for use 300+ BHP lot, so worth really concentrating on that.

 

Looks like great fabrication (as usual !).

[VXT Tim]

Dave, your unit in Shepshed is 20 mins from my house.  I'd love to come and talk exhausts with you at some point

[Dave H]

Nev there are 2 chambers as there is a support for the perf' tube in the centre.

 

Tim you are welcome to drop in some time, I also work late a few nights a week just give me a ring to make sure I'm there.

 

I've fitted the silencer today, It's certainly quieter now and there is room for a 5" x 13'" pre silencer which I will make in the next week and see what effect that has.

 

I'm using a single tailpipe angled towards the floor at the moment but I can change this later for a twin or oval again to see if there are any differences.

 

Dave