Have you seen these big brakes on Ebay ???

[rob_78]

BIG brakes on Ebay...... HSV HARROP BRAKES. monaro, commodore, gto

Not sure if they will fit the Monaro etc

Look here: http://cgi.ebay.co.uk/HSV-HARROP-BRAK

or the item number 160094425447

These are not mine by the way

Rob

[monkfish1]

Yes, they will fit.

[V8 EOL]

I have seen some (not thease) off a car and they are HUGE. I could bearly lift a disk they were so heavy.

God knows how big the APs are.

[monkfish1]

Bigger still

[bovered79]

I think raggyman had these....

[phrich]

http://cgi.ebay.co.uk/LS1-engine-gear

It says 1000HP on the radiator...?

[ringram]

For 4700 you can buy a brand new 427 crate motor using an LS2 or LS1 block.
You would want some pretty cast iron guarantees.

Plus is doesnt actually say what engine it is. Says a 427 went in. And that its a "brute v8" but not what displacement or what parts are fitted.

[ringram]

In fact if it still has "mass air flow" then its going to be shit. All ls1 maf's max out at 512g/sec or around 450rwhp-ish.

[Stigmundfreud]

ringram said:

In fact if it still has "mass air flow" then its going to be shit. All ls1 maf's max out at 512g/sec or around 450rwhp-ish.

uprated MAF?

[ringram]

Doesnt matter, its a pcm limitation. It wont recognise any more air than that no matter how much you uprate it. I might have been somewhat harsh however as there are ways around it, they are just not ideal.

[Stigmundfreud]

ringram said:

Doesnt matter, its a pcm limitation. It wont recognise any more air than that no matter how much you uprate it. I might have been somewhat harsh however as there are ways around it, they are just not ideal.

no way of tapping into that element of the pcm routine then so mafless is the way to go... I'm still not sure about doing it with the variations of fuel etc on tap but eventually I'll be convinced

[ringram]

Yeah do some research, you will find that there is no difference other than the MAF handling engine wear/mods better than SD.
SD is a static map of engine efficiency. MAF reads the engines airflow dynamically with rpm and air temp. SD derrives it from the air pressure, rpm and temp.
It just means with mafless that each mod really needs a retune. With the MAF it will adjust to a certain extent. Never 100% as the maf isnt totally operational until over 4000rpm, under that the OEM PCM runs a mix of speed density and maf anyway, due to the fact that MAFs are slow to read and dont work too well at low rpm, especially with cams etc.
Take a look at what the Ozzies recommend. 95% will tell you mafless.
Its a contentious topic though kind of like ford v holden, or england v ireland in rugby etc. Pro's and Con's on both sides.
Best thing is to read up on it over on ls1tech.com and ls1.com.au etc. Then decide which way you want to go. Ive been Mafless for the last 20,000 miles.

[mackie1]

Those brakes will be option 2 on this page:

www.jhp.com.au/monaro-gto/gto-performance-brakes.php

An improvement over standard VXR brakes (option 1) but not massively bigger. I've heard the harrop calipers can need a bit of TLC.

[normic]

You still around Rob?? thought you had sold the ro' ???

[ringram]

Check this out anyone looking for some nice priced brakes
Just over a grand for the set
www.ls1.com.au/forum/showthread.php?t=70827

[rob_78]

normic said:

You still around Rob?? thought you had sold the ro' ???

Yup Mike,

I'm still about, seeing whats going on & seeing if my old car pops up on here

I so want another one but just can't afford it now

Rob

[Stigmundfreud]

I think one of the issues for me is the cross drilled discs on the AP's. Just had bad experience with drilled before as have others and if you are spending such an outlay I'd personally prefer something not drilled. Sounds silly?

[mackie1]

Not at all. I wonder if the do grooved only disks as an option...

[stevieturbo]

Stigmundfreud said:

I think one of the issues for me is the cross drilled discs on the AP's. Just had bad experience with drilled before as have others and if you are spending such an outlay I'd personally prefer something not drilled. Sounds silly?

defo not. Drilled discs crack...period.


Porsche discs are made with the holes cast in though...so less chance of stress cracks appearing at the holes.

I wouldnt buy drilled discs.

[Stigmundfreud]

mackie1 said:

Not at all. I wonder if the do grooved only disks as an option...

those smaller harrop ones look that way (didnt pay too much attention to them)

Steve I seen they offer blind drilled as well but not seen any on the AP's