183 replies to this topic

[RBTORY]

Hey turbo76lx just another to tell you your work is top shelf I saw your car at the island I had the gold ljrb30 which engineer did you use?

[turbo76lx]

Baillie, i'm a bit busy building my other torana to make any parts but can take some more photos and measurements if that helps. The tank i made off set to run

one pipe and the only requirement for RWC and engineers was a minimum of 10mm clearance. I have no heat shields between the exahust the the tank, i kept it

as far away from the tank as posible, the tank does get hot if it is below 1/4 of a tank because of the fuel return, which will be getting a fuel cooler soon. The diff was

ment to be standard width plus VN discs which would have ment using wheels with 1" positive off set, which there are many different styles of wheel to chose from.

When they built the diff they didn't relise that a 35 spline detroit locker the end of the axles should almost touch because they are hollow through the centre where as a

31 slpine detroit need 25mm between the end of the axles. The diff turned up all bolted together i was lucky i decided to pull the centre out to make sure everthing was ok.

When i rang them he wouldn't supply new axles only cut the diff back which created problems with the position of brake calipers and i had to find wheels with a 1/2" positive off set,

which is limited. Considering at the time i ordered 2 comlpete diffs and another centre, $9000 in total plus was looking at buying more parts, he wasn't interested in fixing his mistakes

Also the other diff had one of the top mounts welded 20mm higher than the other, i fixed this myself.

This person works out of SYDNEY i think he does a lot of COMPETITION and works out of a WAREHOUSE.

RBTORY i had a look at yours at the island, you've done a great job, it's a real sleeper. The engineer i used was Andrew Enkelman.

[RBTORY]

Where is andrew enkelman situated
Thanks

[turbo76lx]

This should help http://aenkassoc.enk...m/about_us.html.

Is yours engineered?

[RBTORY]

Yeah im on my second housing after my first housing was done the pinion was facing the ground something like 5deg neg pinion angle then get told it sounds like a balance problem mate not the diff that cant cause a vibration next diff gets done right by me no more cowboys. Not enginered yet

[turbo76lx]

Went down to JPC today, it has felt like it's been down on power. Had it re-tuned with two maps, one at 15psi 235rwkw (315rwhp) and the other

at 26psi 325rwkw (435rwhp). They advanced the cam 2 degrees and found the TPS was playing up and to wide band o2 sensor wasn't working.

It's now a little bit more interesting to drive but now has another problem, a lack of traction.

[MRLXSS]

WOW! Thats very impressive!

[turbo76lx]

It will be interesting when i get around to putting some C16 or E85 in it. Hopefull get to Heathcote on the torana day, if not sooner
.

[RBTORY]

Nice one glad to hear it went well

[turbo76lx]

Had some fun today, drove to Heathcote bolted up the M/T street ET's and had a few runs. The best run of the day was 12.29@ 130mph.

I think i need to get the converter loosened up a bit, just can't get it to stall up on the trans-brake above 3000rpm, which is where it just starts to make boost.

Now i need to pick all the bugs out of the intercooler, hit a few swarms of locusts on the way home.

[RBTORY]

nice one should get a lot quicker through some playing around that power should get you into the tens easy

[turbo76lx]

The problem is the stall, it's been built a bit tight, it flashes up to 2800rpm then creeps to 3000rpm where it starts to make boost then climbs to 3300rpm.

When i let it off the trans brake it falls off boost. I thought with the re-tuning the extra power would make the stall work but the motor is a little lazy down low.

So when i get time i will pull the stall out and get another 500rpm put in to it.

[turbo76lx]

This stall was built to be a 4000rpm stall but because the motor isn't making boost/power until higher in the revs the stall is not working.

Traction isn't a problem at the moment when it leaves the line it drops off boost so it drives off normally until it gets to about 60kmh then all hell breaks loose.

[turbo76lx]

It starts making boost at 2900-3000rpm it hits 10psi at about 3500 and just keeps climbing to 26psi. I've got the limiter set a 8000rpm but shift at 7000.

[turbo76lx]

4500-5000 stall would probably work very well but i'm trying to keep it as street friendly as possible so i'll just start with adding another 500rpm to the stall and see how that goes.

[turbo76lx]

Update time, had the head fixed, had to much valve stem clearance, using oil, Mark (JPC) done a new head under warranty, good to have an engine builder that backs his work.
Also sent the stall to dominator who fixed all the nasties and added 500rpm to the stall.
Went to Heathcote today had 5 runs best time was 10.38 and best MPH was 137.91.

Here's one of the time slips, it's good to give then a head start them hunt them down.