thanx heaps for the info voxace..... cant wait to get into it, got a question, do you think its necessary to dyno tune the car after you start getting into the cams and what not???

Nah not necessary. Certainly wouldn't hurt, but very expensive.

sweet, aye i herd someone sayn sumthin about a chip for your computer know anything about this???
cheers

stupid question???? haha

I got the Pacemaker headers and high flow cat thru to 2.5" exhaust the note is beautiful, performance is smoother and a little more punchy. I am now looking at cold air intake. I have not thought much about Cams. Maybe from what I have read it may be a good idea.

Hey guys i need some help working out my budget will i need to replace the dif, transmition or any of the drive train if i turbo chage my car and do the cam and exhaust mods? I drive a 1999 AU falcon series 1

Fantastic Thread!!!! has really helped me understand the I6 mods. Thanks voxace!!!

Hey Probably a stupid question and probably been asked a million and one times ... but i have a 3.9l ea auto it has nearly 300 000 k's on it more then like past that once i get all the work done but would it be better to get a second engine and get it rebuilt with a cam and new vavles and stuff of would it be cool to get it done on this one ... also is there any cam or stuff i shouldn't run on lpg??

Thanx for the help

get it rebuilt or get a 4Litre or do a AU conversion

Anyone know what it might cost me to get an LSD installed and what the best choice for an EA Auto would be?

I'm in the process of getting a LSD diff for my auto EA2. After reading a lot of posts, I've settled for a 3.7. Some of the other chaps here recommend a 3.9 or 4.11. For me, a 3.7 will be compromise between acceleration and fuel economy. I've been quoted $450 for a reco diff, $130 for a bearing kit (includes rear axles) & $440 for labour. I bought a good secondhand set of gears on eBay for $250.

If you have a Borg Warner diff, you can probably use a 25 spline LSD from a VK/VL Commodore. The EF/EL uses a 28 spline diff.

What would the advantage of the 3.7 be?

3.7 would be better economy than 4.11 (correct me if wrong) 4.11 would however be quicker for accerlation

So 3.7 would still offer power advantages on stock ratios?

If you've got a ratio of 2.9 to 3.23, then you will notice the difference in acceleration. As the BTR 4 speed auto has a high 1st gear, going to a lower diff ratio will help you get off the line quicker. Not that I'm advocating street drags, but some of these impatient ##**!! Commodore drivers are asking for it. The lower diff ratio will only make use of your available hp.

Changing the diff ratio, like non-standard tyre sizes will put your speedo out as well.

There may not be a significant difference in the revs between a 3.7 and a 4.11, but on a trip to Qld you'll notice the drop in fuel economy. I used to have a Toyota Corona with 4.11s and the screaming engine was irritating on a trip.

My friend drives a corona, and I've noticed, after only a lukey extractor mod, that he's always about twice as quick off the mark, but lacks in top speed. Perhaps a 3.7 ratio would help just slightly?

a 'electric supercharger is s**t' should be sticky'd somewhere as it pops up at least once a week.

im doin up a 3.9l ea starting engine first. i was thinking putting in a cam wat do i need to get done in order to do this? or can i run it straight up of the stock parts with a bigger cam?

also is it worth dropping a 4L head on my 3.9L ea?

jus another thing ppl does anyone no how much it would cost for an AU cinversion???


im just keeping my options open thanks