Hello.

Like many other people I would like a considerable amount of power from my TR, but what is the best and cheapest way to go about it?

The way I see it, there are 3 options:

1. Rebuild and Turbo the astron
2. Install a TS V6 (apparently the engine mounts are the same?)
3. Install a N/A version of the DOCH 6G72 (like craig harrison)

Anyone know estimates of power figures from these options? Killbilly I'm looking in your direction :) And any idea about costs? Bear in mind im planning to do alot of the work myself, and let a mechanic deal with the stuff I am unsure of...

Well it depends on what you mean by "best".

Do you mean the most power?

I can tell you the cheapest would be a toss up between the sohc 12v V6 conversion and the turbo 4cyl conversion

BTW TButcher has a turbo 4cyl for sale..you might want to talk to him

The dohc 24v is out of the question, If you read the article Craig had to get new engine mounts engineered. That alone has blown the whole "cheap" perspective.

Also in regards to the TR V6 bolting in, I've heard that the 4cyl and the V6 are bolt in, but I've also heard that the dohc 24v bolts into the V6 engine bay.

When you consider craig had to change mounts in the 4 cyl...it stands to reason that the 4 and 6 engine bays are different.

This is where I'm at with this engine conversion myself, noone can give me a straight answer.

If I were you, I'd buy that motor off TButcher, the work has all been done and it's a good price.

I'd also be investing in brakes and suspension, really good stuff..not dodgey pedders stuff.

how much for the DOHC v6? its from from the japanese diamante right?
i found a place in Adelaide with a tt gto engine package for 4 grand
they also had a front cut from a awd magna not sure what model tho
hmmm they engines from the japanese diamante should fit cause they used the same plans to build em, cept suspension was different i think

yeh I would but by the time i got the $$$ to buy it, it wont be there no more :)

SHOULD fit..

but do they?

As I've said before, in my research I've found noone who can confirm anything.

F*** it

ill just get pod/zorst/cai

then work on stereo and mags hehe

Turbo the astron.
since its the same block as the sigma it should be easy. heaps of sigma's got turboed, i think mitsu even brought out a turbo sigma with the astron in it

they certianly did bring out a turbo'd sigma with the astron. called it the scorpian. watched 1 outrun an AU falcon cop car 2night.

just cuz he did a tiny little burn out and was side ways for 100m down the road they wanted to pull him over. HA they didnt have a chance!!!!!

tim

could be wrong here
but the scorpian wasn't turboed
it was just a sigma coupe
however because it is the astron motor ppl prob have turboed them
there was a sigma turbo tho
had huge turbo lag problems

hey killbilly ill talk to my dad and get him to ask someone at mitsu if the Dohc engine will fit into the TR TS

how much for the DOHC v6? its from from the japanese diamante right?
i found a place in Adelaide with a tt gto engine package for 4 grand
they also had a front cut from a awd magna not sure what model tho
hmmm they engines from the japanese diamante should fit cause they used the same plans to build em, cept suspension was different i think

I'm in adelaide aswell, i was wondering where i have to go in adelaide to look for new/recond engines?

I am also very keen about possible engine swaps, as i want to do that before any other type of performance work on my engine, because its at 172,000kms. RPW website mentions the newer 3.0l and 3,5l engines as possible engine swaps, but when you compare them on site alone, they are completely opposite, and i have heard that it isn't a feasible option?

Anyway, any and all information is good information!!

Cheers,
Cam.

172,000!? That's nothing mate!

Mines at 263,000. Almost 100,000 more than yours and it's still choppin commos and smokin it up ;)

I'd just keep that motor..it's got a long life ahead of it!

are you serious? your worried about 172000? my car is 3 years younger than yours and its just hit 172000. i would be pretty happy with that if i were you. if wear and tear is what your worried about instead of forking out all that money for a motor swap why not just get a recondition and have your heads ported and polished. then with the money you save throw on a pack of performance mods and you'll have a weapon!

I second magwgn! 172,000 is way too early for a replacement!

Probably even too early for a full recondition if it's been well maintained.

port and polish and a balance.

Maybe get the crank knife edged while you've got it pulled apart.

oh, well, thats a pleasant surprise.
I have heard that the three biggest problems with magnas are:
CV Joints
Timing Belts
Engine Reliability past 200,000kms

So i just assumed it would be a waste of time trying to do it up, if it was gonna get shonky in 30,000.

well, in that case.. time to check out the aussie magna shop :D

Also, is there ANYTHING transmission wise i can do? Is there any feasible transmision option for me, owning an automatic? Can i source a 5 speed auto or something.. ANYTHING?

Cheers,
Cam

Well those things you've been told are BS

I've never had a problem with a CV joint, and engine reliability past 200,000kms..well my car is a shining example of that its just as reliable as new.

These engines should have the timing chain changed every 100,000kms (so I've been told). But that's the same with almost every car.
My dad had a mate who owned a 91 TR and it had done 400,000kms! Still ran like a dream, blew a little smoke, but that was all.

Manual conversion is a little expensive..but well worth it.

I'd do that first before any engine mods.

saw a tr magna 4 cylinder with ~127kW at the wheels.. no shit aye it was PERFECT

what type of people should i be talking to about transmission swaps? ie. what am i lookin for in the yellowpages :lol:

When doing something like this, when am i paying too much?

expect to pay upwards of $3000 for a full gbox change with labour inclusive etc...

the cv joints are always the main thing people question on the magna's. however the problem lies not in the magna but in the cv joint itself. cv joints are a major problem in all front wheel drive cars, simply because of the way they are designed. cv equates to constant velocity, which means it is a flexible joint which has to be able to maintain drive at any angle. to do this it needs alot of lubrication, and heres where things go astray. they get this protection from alot of grease, and because it is a freefloating, constantly moving joint this grease has to be sealed and held in place by a some what flimsy rubber flexible boot. take away the grease and you get two very unhappy connections who arent going to like being rubbed together. basically this means that mr boot has everybody relying on him to keep things running smoothly. any problem with the boot is going to mean a loss of grease which in turn means problems for the joint. as long as you regularly check the integrity of your cv boots and grease content you should NEVER have a problem with your cv's. and even when you do it is a very long and drawn out process. most people will notice a slight tapping when they lock the steering to one side. this is the unlubed fingers of the joints rubbing over each other. this doesnt however mean there is going to be any problem with drive or steering. in most cases if you replace your boots and repack the joints as soon as you find a problem that should be the end of it. its only when its left for a long time to wear down and get worse that they will start to cause real havoc with your car. in sumation, always regularly check your boots are intact, especially after driving on rocky/gravelly roads or when driving with lots or tight fast turns, and if you find a problem deal with it emidiately to save yourself a large bill to have them replaced. (i was trying to beat my last long post :lol: )

well, i now know everything i ever wanted to know about cv joints :lol:
is that $3000 with performance clutch etc or just the base "factory" items?

yeah i dont know what it is with me today and long posts. i must be really bored, ive been on here so long my tower is starting to melt!

well, i now know everything i ever wanted to know about cv joints :lol:
is that $3000 with performance clutch etc or just the base "factory" items?

factory..

ewww... that sux... well, i guess i had get used to my auto :( :cry: :-({|=

saw a tr magna 4 cylinder with ~127kW at the wheels.. no shit aye it was PERFECT

What mods?

Trying to figure out how much $$$ would need to be thrown into the TR with a turbo etc to get figures in excess of that, hehe :D

ewww... that sux... well, i guess i had get used to my auto :( :cry: :-({|=

Mate,
try Just magna spares at parafield / salisbury (?)
They used to do conversions and even used to do 2.5 lt quad cam engine conversions for TR's - i drove one of the converted cars they did... it went hard as :) - they quoted me about $3000 ish to do the conversion about 3 or 4 years ago..

they have recently changed hands though so im not sure if they still do that sort of work but i would expect if your tranny is in good nick they would do a manual conversion for under $1000 using second hand bits..
but dont quote me on that !!
GuRu

There's nothing wrong with the factory clutch!!

It's very good!

:roll: so why did you get a new one??? :oops:

Because mine was 260,000 kms old and was slipping a lot.

All clutches wear, and that one had had its fair run.

Also it was about 400 bucks for a mitsu stock clutch so I thought I'd pay the extra money and get the RPW custom one.

Big difference, it's definitely a LOT better. But the stock clutch isn't bad at all.

how and where did you notice the differences? would the better clutch stick better say if you wanted to spin the wheels etc?

Oh yeah it's got a HELL of a lot more clamping force.

The friction point is really quick to come, ie it's much closer to the floor than the stock one. And I found basically no difference in pedal effort. Actually I think it was a bit lighter...

Obviously it takes getting used to because it's so much more grippy and you're bound to stall it a few times. But when you feel it snap on and no clutch slipping at all...just power....it's alllllllllll worth it ;)

WooHoo! You give me hope GuRu. I will go and check them out tomorrow!
So they are called "Magna Spares"?

Cheers,
Cam

how much did it cost and how much/long to fit it?

700 bucks and it took a day to fit. The flywheel had to be machined (not lightened..just made a perfectly new surface again)

It was 5 1/2 hours labour

WooHoo! You give me hope GuRu. I will go and check them out tomorrow!
So they are called "Magna Spares"?

Cheers,
Cam
It's Just Magna Spares