Diary - 427TT install

[Harryoz]

Raggyman said:

Wow harry... that thing is going to be a monster... your not wrong about things getting cosy that is for sure.. Definitely going to be interesting to see how you go with all that heat in there. Guess you aren't gonna want to be sitting still in traffic for too long. Umm, might have to talk to the Mrs to find out if I can put a TT in rather than a supercharger..

I have a cunning plan for the heat, in fact two cunning plans. One is borrowed from the Vanquish. It has these great heatshields over the exhaust manifolds with shaped "exhausts" that run to vents in the bonnet. Amazing difference in the heat above the heat shields and over the exhausts. With the bonnet down there's this enormous heat haze that pours from the vents on the Vanquish at idle (appreciate that its not the same heat as a turbo install, but looks like a cool idea)

Raggyman said:

Why a new fuel tank? Is is cause normally it is going to get sucked dry after 10 minutes?

Like Mackie said, I want to fit a twin 3.5 inch exhaust and it just wont fit where the old one went. Also allows me to fit the largest fuel tank possible.

[Harryoz]

Week 3

Not a lot of visible progress this week, but some more clarity reached on some of the issues. Mike also assures me that he's ordered the last of the engine parts. Going to be a few weeks though

Pistons and rods now in







Space for the fuel tank, estimated to hold ~140 litres

[crisisjez]

Thats a lot of gas, hope the tank`s well baffled.

Coming on nicely.

[anonymous-user]

looks like you're building one if the "V8 Interceptors" from Mad Max!

[SplatSpeed]

is it me or do thoose bores look like the audi symbol???

[FEATHERFOOT]

SplatSpeed said:

is it me or do thoose bores look like the audi symbol???

At last - someone has found the hidden message

AUDI = BORES!

[Harryoz]

Week 4

This week saw the fabrication of the exhaust manifold adaptors to mount turbos and wastegates







Final location of turbos on adaptors



Also the ECU has been relocated out of the engine bay and inside the passenger side footwell



Engine is waiting for final parts to finish off (due this week with any luck).

Car is off for exhaust manufacture next week. Going for the Wortec in car volume switchable exhaust system but as a 3.5inch twin setup.

[Boosted LS1]

Those missing parts cleared customs this morning yet were despatched from the USA on friday afternoon! How do they do this, it's well fast?

Boosted.

[crisisjez]

Shame it won`t be ready for the 19th Harry.

Coming on nicely, saw Devil Yellows at Monkfish and as it was on its wheels thought Rodger had worked miracles on your car.

You got any forecast power figures for us all to drool over?

[Harryoz]

Boosted LS1 said:

Those missing parts cleared customs this morning yet were despatched from the USA on friday afternoon! How do they do this, it's well fast?

Boosted.

excellent, so finished before your holidays!

[Harryoz]

crisisjez said:

Shame it won`t be ready for the 19th Harry.

Coming on nicely, saw Devil Yellows at Monkfish and as it was on its wheels thought Rodger had worked miracles on your car.

You got any forecast power figures for us all to drool over?

yep, have to wait for the next VMAX

power forecast? it would be nice to think it should make 4 figures, but happy to wait and see

[SS HSV]

Four figures Can't wait to see

You certainly have the right bits to make it happen.

[Raggyman]

Looking absolutely awesome.. This thing is going to be a monster.. Be interesting to see what fuel economy is like. Before you thought single figures were bad. Could it be that we could be counting with decimal points? Would be absolutely awesome to check it out... Oh, ah yeah... SHOTGUN!!!

[ringram]

What boost are you aiming at? 14psi?
With standard 427's running 600bhp no problem a 14psi well setup one should do that not a problem. In fact 8psi might be enough, Im sure Mike has crunched the numbers.
Off boost economy "should" be ok if in closed loop, but lower thermal efficiency from lower CR will cut a bit.
Still turbo is one of the most effective ways to get an efficient engine.

[Embedder]

Here is some fun for you guys.

LSX Block, 427ci, LS7 ETP heads, Vortec supercharger




Dyno graph and video of the run


http://users.tpg.com.au/adslltvd/dyno


And for any more info check this thread.
www.ls1.com.au/forum/showthread.php?t=79997

The revs rise soooooo fast and the dynos are struggling to hold onto it!

Good luck Harryoz, you will need it!

[SplatSpeed]

just had a crazy thought what if you added a turbo or two by the rear wheels

oh imagine the power

i am clin icly mad

[Raggyman]

SplatSpeed said:

just had a crazy thought what if you added a turbo or two by the rear wheels

oh imagine the power

i am clin icly mad

That would add one hell of a turbo lag that would..

[SplatSpeed]

Raggyman said:

SplatSpeed said:

just had a crazy thought what if you added a turbo or two by the rear wheels

oh imagine the power

i am clin icly mad

That would add one hell of a turbo lag that would..

no infact the opposite

anyway turbo lag is a thing of the past

tractor pullers use a two stage system

[crisisjez]

Just a question Harry, but how long do you usually keep your cars?

[ringram]

Looks likey they are running with the 6 bolt heads too !