i've got that wonderful astron II 2.6 carb. its a top motor but nothing compared to EFI. (got a 4spd auto gearbox too which doesnt help)

how much does it cost to do an EFI conversion?

would i benefit more from then EFI conversion or from putting in a bigger carbie i.e. 38 weber maybe OR i also heard XE falcon carbs can fit in well and are relatively cheap?

any help and comments appreciated.. :)
..michal..

You would be better to go for the EFI conversion. Not only is there more power to be made but they are a lot smoother and much more fuel effecient. Why lot look at a newer low km's astron from a TR or such, they are as cheap as chips.

As for the conversion, its dead basic but i wouldn't have a clue as far as costs. All youd need is a fuel pump, fuel lines, injector rail and injectors, EFI intake manifold and ECU. Im sure you could pick all this up at a wrecker no probs as they often have plenty older magna's lying around.

yeah but how much work is involved with that? especially all the wiring! the most i can leave my car out of order is one day or two. so really i'd probably have to give it to a mechanic to fix up because they'd have all the right tools and would get the job done quicker, for me it would take ages to do (no less than a week at least i reckon!)

and working hours = i have to pay bucketloads, right?

8)
michal.

i was quoted about $3000 to get my car converted to EFI... not really worth it seeing how u can pick up a few 2.6 EFI engines up for that much, and maybe a car to go with

i got the 2.6 carby / manual config, so a simple carby upgrade is far better for me and should be better than an ecu in terms of power upto a certain point (i.e. no aftermarket chip).. only not as fuel efficient.. which doesnt really matter that much to me when ur comparing an extra $2000

though gettin a carby upgrade on an auto magna isnt as responsive as on a manual magna im told.. so it may/may not be worth the extra trouble

I used to have the 2.6 astron in a manual form, and I agree, stick with the carby and do a upgrade!

I do miss the sound of secondarys kicking in :)

XE carby?? is that the dual throat weber carb?
i guess u'd need a manifold to carb conversion plate or is it a straight fitup?
how about the auto choke and accelerator cables, do they line up or do they need to be modified?
Is it a noticeable power gain?

Yeh, i like secondaries sweet sweet sound to ;)

btw i've a 1985 TM 5 speed

If you decide on a carby change, don't use the 6cyl falcon weber-----they are a 38-38 meaning the dia of the butterflys is 38 mm, they are too big.I am running a 32-36 weber off a 4cyl cortina. It works good.

You have proberly long forgotton about this post but i will reply anyway for anyone who wants to know

Just finished a conversion myself
you need
Exhaust manifold and EFI Cat conveter
The whole inlet systems needs replacing
(MAS air sensor, Manifold,)
Need to change Distributer
Ignition Coil (has sensors that go with it)
you need both EFI computer and fuel pump computer
and you need a wiring run off a EFI Auto <--important
too hard otherwise

now i didn't have to change the fuel pump on mine for some strange reason it allready had a return line on it ???? can't explain won't try to
will have to look for yourself
that should be it hope it helps

i have a TM ULP model.
I have extractors, speaking to a guy who specialises in carby's, he suggested enlarging the main jets on the stock carby.
I haven't had it done yet, but will soon, should go nicely with a stage 1 cam.

First Gen is a great car and the only reason I think they have so many problems is mainly because they're old, upto 18 yo for the very first tm's

I've done a LOT of stuff to mine and it runs absolutely brilliantly

the only thing i dont have, but can live without is cruise control and who really needs that cruisin round town?

hey quick_tm, i also have an 86 ULP TM and was going to upgrade to a larger carb. im interested in enlarging the main jets on the stock carb as u said in ur last post. would this cost less and be as beneficial as fitting a larger carb? im also after a stage 1 cam to go along with it... have u gotten it done yet and if so are u happy with how it is?

thanks,
brendan

You can do the standard mods to a carbi single cam engine.

Polished and ported head
Port matched manifolds
Larger carbi
Cam
Larger valves if really hardcore!
Exhuast

Not in that order tho.

If its your daily driver then its probably going to be too much down time for things like polished heads and valve work. but with limited know how and tools a cam and carbi can be fitted in less that a day, with tim to head to TM-SE-RED's house for drinks

I haven't done the mods yet,
enlarging the jets in the stock carby will give u marginal performance increse, but the main aim is to ensure it doesn't lean out with the incresed air flow, with the stage 1 cam and extractors a slightly larger butterfly (different carby)would give u the best boost

Sounds good. Let me know how they turn out, i have a friend going to do the same mods. I hear exhaust work is pointless too.

exhaust work isnt pointless, it sjust if ya make it too large for ya power output u can lose a lotta torque

i got a (hot air intake atm) k&n round filter sitting on a 180cfm holley, ported intake, extractors, to 2.5" exhaust, highflow cat/muffler etc.

feels like the power is pretty much linear to about 3500rpm where it then picks up and goes like hell... so theres probly a bit of torque loss or backpressure issue

tho im thinkin of getting a small bonnet scoop to help with CAI so that will probly give some better torque/throttle response etc

hey, how much was the 180cfm holley carb, and extractors? u reckon 2.5" is too big? maybe a 2.25" is sufficient for these magnas?

and is it more beneficial (power and money wise) to either keep my carb setup and upgrade it like yours with the holley etc, or buy a newer, EFI TR magna engine?

thanks,
brendan

only cost me about $850 for the whole carb kit.. with everything bolt-on-able... fitted it myself with a mechanical knowledgable friend and got it tuned professionally after that for a hundred dollars or so.

though it also depends... if ya engine is lookin like its on the way out it might be best to just get a new/recond engine... :?

yea 2.25" is probly the largest ya wanna go unless ya goin turbo or something, cos you can only buy premade extractors in 2.25"... but the 2.5" will still have more flow at higher rpm...

only cost me about $850 for the whole carb kit.. with everything bolt-on-able... fitted it myself with a mechanical knowledgable friend and got it tuned professionally after that for a hundred dollars or so.

though it also depends... if ya engine is lookin like its on the way out it might be best to just get a new/recond engine... :?

yea 2.25" is probly the largest ya wanna go unless ya goin turbo or something, cos you can only buy premade extractors in 2.25"... but the 2.5" will still have more flow at higher rpm...

can you beat an EFI astron? i would be surprised if you could. Do you have a cam to go with it.

I wonder if my 1986 Magna TM is EFI?

well go pop the hood and see. if it's efi u will see the rocer cover easy (nothing covering it) and a if it's carby there will be a big carby air cleaner on top of the rocer cover:D u bored ?? thread mining thats all

i ahd carby auto tr used to do 0-100 in bout 18 secs... got it down to 12 secs with ported intake weber carb, 2.25" exhaust amd extractors and a cam.
my new efi setup is much better tho does it in bout 8.5 now. btw its the same car i did all the conversions and mods

THREAD MINE damn dude

Yeah check the rocker cover.

i ahd carby auto tr used to do 0-100 in bout 18 secs... got it down to 12 secs with ported intake weber carb, 2.25" exhaust amd extractors and a cam.
my new efi setup is much better tho does it in bout 8.5 now. btw its the same car i did all the conversions and mods

was looking at you pod and was like how the f(^k? then realised you have and after market ems :) problem is with mods i get used to them to easy, i drive mine every day and im like meh got into a bog standard 1st get and i felt like i had to get out and push then realised how much more go mine has

I wonder if my 1986 Magna TM is EFI?

no TM was EFI.