Diary - 427TT install

[Harryoz]

Week One

Monaro moves into a quiet corner of Monkfish



Ever wondered what an '04 boot looks like naked?

Edited by Harryoz on Monday 2nd July 07:57

[Harryoz]

crisisjez said:

Cool, will be up there on tues. Must have a good old nose.
Does that mean you have a LS2 lump spare?

Doh, why I put 05 I dont know, its 04, and the spare is an LS1 - I'll keep it as a spare

[Harryoz]

ringram said:

cool, who's turbo's? clutch? Fuel system? Diff?

Turbos are GT37s


Clutch from McLeod

Fuel System from LS1Turbo Australia


Diff and the rest of the drivetrain, working on it

[Harryoz]

VXR_Daz said:

7 Litre TT?

I hope you have wiiiiiide rear wheels to get anything that resembles traction!

275s at the moment, but you're right it needs wider IMO

[Harryoz]

eliot said:

stevieturbo said:

Dont forget the propshaft, diff, and halfshafts etc.....

indeed, wouldn't want a halfshaft snapping and hitting that fuel setup.

Yep, Roger's looking into the various upgrades

[Harryoz]

mackie1 said:

What's the likely output once it's all built? It's got to be getting close to 1000bhp? Will it be detuned for street driving?

I'm expecting it to be a large number, but dont have a fixed target in mind. The challenge is/was to come up with something useable on the street.

[Harryoz]

For those of you that like pictures of engine bits

Edited by Harryoz on Tuesday 3rd July 20:08

[Harryoz]

All technical questions to Mike, I just pay for it

Pictures I can do though

Crank by Callies

[Harryoz]

VXR_Daz said:

Saw it sitting there today, seems like there is still a lot of work to be done.

Too true Must get the whip out

[Harryoz]

Week 2

Stopped off at Rogers on the way back from VMAX with the whip. Small amount of progress this week. Old engine still in place with bits removed to mock up turbo placement so that final install is easier. They look cosy....





Old fuel tank removed so that new one can be installed. Should be the last time we see that spare wheel well.



Engine also still in progress, crank now installed

[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

[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.

[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

[Harryoz]

ringram said:

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.

Expecting to run somewhere up to 18psi for four figures based on calcs done, but have to wait and see

Embedder said:

Here is some fun for you guys.

I like it, sounds awesome

crisisjez said:

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

Prefer not to get rid of them, they usually go when I either run out of space or wear them out

SplatSpeed said:

plus i think this car will be used in a straight line mainly

Plan to use it in corners as well, but doubt that will be with foot on throttle past a few thousand rpm...

On the subject of lag, for this install it is our friend. We specced larger turbos to introduce lag such that there is a driveable rev range (up to 3000-3500rpm) before lift off. It is intended to be a road car after all

[Harryoz]

Week 4.5

Mikes been fitting parts, so cant resist sharing...

[Harryoz]

stevieturbo said:

Speccing "laggy" turbos wiould only make the transition from off boost, to on boost more dramatic.

The correct way for smooth power delivery, would be for a fast spooling turbo, and to map boost vs rpm or TPS, to give a progressive power delivery.

But "dramatic" is sooo much fun, oh the rush!

For smoothness the intention is to moderate the transition via boost level management.

[Harryoz]

crisisjez said:

Harryoz said:

stevieturbo said:

Speccing "laggy" turbos wiould only make the transition from off boost, to on boost more dramatic.

The correct way for smooth power delivery, would be for a fast spooling turbo, and to map boost vs rpm or TPS, to give a progressive power delivery.

But "dramatic" is sooo much fun, oh the rush!

For smoothness the intention is to moderate the transition via boost level management.

Does that mean not pressing so hard with your right foot?

simple low tech solution, I like it

[Harryoz]

stevieturbo said:

Anyway....Santa Pod here I come then off to York for TOTB

Good luck at TOTB - trust the weather holds