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Old 22-09-05, 12:19   #126
Turbo-moruk
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Quote:
Originally Posted by Bax
factory turbo/v8 28 spline rear and hook that into the equation.

And upgrade your front brakes aswell.. But the manual will last as long as you treat it nicely and don't go snapping through gears.

So Bax are u saying that I need to get a turbo v8 28 spline diff and upgrade my front brakes and bobs ur unkle?

What I wanna know is what about the tranny it self ? or the gearbox or both and say I snap thru gears what else would I need to upgrade?
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Old 22-09-05, 12:35   #127
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The tranny is the gearbox mate.

You don't have to put on the 28 spline rear. Rear discs are what you want though.

If your going to give it a real big hiding I'd invest in doing your entire driveline.
Depending on the power your going to have.

25 Spline Disc rear. What the n/a calais has. Will do you fine unless your going to be crazy with it, have lots of power and do burnouts all the time. Just like the N/A Manual gearbox, it will last as long as your not doing burnouts.

Either way, brakes are a definate upgrade in my opinion. Discs on the rear as a minimum, and vlt on the front. as a minimum.
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Old 22-09-05, 13:42   #128
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turbos arnt all about top speed guys so why becuase he got a turbo you think hes gonna be driving any faster?
dont worry about brakes upgrade them later
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Old 22-09-05, 14:02   #129
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It's not so much speed. But theres alot to do with momentum. And theres something to do with the turbo that encourages... Spiritful driving. Do the brakes.
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Old 22-09-05, 14:28   #130
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do ya brakes seriously!!! They didn't come out on factory turbos for no reason!
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Old 22-09-05, 15:08   #131
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yeah do em but you dont need it for a turbo conversion get the turbo done first man once sorted pull up in your garage and fit some bigger brakes for sure
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Old 25-09-05, 10:50   #132
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[QUOTE=VLT_CONV]Hi im doing a turbo conversion on a SII Auto Exec.

Brakes: 90% of braking is done in the front so upgrade the front at least. Drums pull up as good as disks in a one off situation they just dont cool off as quick. If you had VT twin spots up front, NA drums rear, and had to slow the 150+KW down after accelerating hard on the freeway you wouldnt have any trouble. The only thing is with drums you get that terrible VL spongey pedal feel. I'll tell you one thing though stock NA Front disc brake system is the exact same as on a sigma. The sigma is even too overpowered for that system let alone a modified VL turbo.

As for NA Auto: Turboluke, have you seen an NA auto tranny hold up with a turbo conversion? How long would you give it with a cooler?

I have most parts ready for the actual turbo conversion but only have an auto NA gearbox. Im hoping my DBA x-drilled slotted and NA auto will withstand the pain till i can afford a decent box and brakes.



DO NOT PUT CROSS DRILLED AND SLOTTED ROTORS ON YOUR CAR YOU WILL CRACK THE IF YOU GIVE THEM A HARD TIME I DID IN 15,000 KMS AND THAT WASNT EVEN ON A TURBO!!!!!!! AND DBA HAD ONE LOOK AT THEM AND TRIED TO SHIFT THE BLAME OHH YOU GOT THEM TOO HOT!!! ECT WASTE OF TIME TRUST ME !!
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Old 28-09-05, 16:59   #133
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Okay what bolts are needed then,

obviously the T pices for the oil libes and water lines. whatabout exhaust manifold, boltign the turbo up. and dump pipes form the turbo to cat?

Also can you get premade intercooler piping for a vl commodore made up already?? or does it need to be custom to fit your car with what you got in the way of the piping?
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Old 15-11-05, 11:50   #134
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what do you need to do with the bottom end of a n/a vl to be on the safe side if i was to run say 12 - 15psi
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Old 15-11-05, 12:02   #135
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lower the compression
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Old 15-11-05, 12:34   #136
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how much would it cost approx to get the oil and water lines tapped in
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Old 15-11-05, 12:56   #137
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what eva you do don't use n/a injectors and ecu for a turbo conversion. i tryed it with n/a injectors and it pinged it's head off at 4000rpm with the timing set at 5 btdc on 6psi.

Last edited by darkl0n; 15-11-05 at 13:05.
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Old 15-11-05, 13:03   #138
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If done right, excellent results can be reaped reliabily on low boost. Many ppl shortcut on the fueling side and wonder why they crack pistons and such. I made. Don't skimp. Yes turbo front brakes make a huge difference. I have done this highly reccomended for $100 bucks or so it will cost.

Cheers.

Lowey.
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Old 15-11-05, 13:03   #139
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Quote:
Originally Posted by steveo_69
what do you need to do with the bottom end of a n/a vl to be on the safe side if i was to run say 12 - 15psi
Good management and a tune.
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Old 15-11-05, 13:27   #140
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how much would it cost approx to get the oil and water lines tapped in
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Old 15-11-05, 17:03   #141
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Quote:
Originally Posted by SYKO3L
lower the compression
use a decompression plate or fit some turbo pistons or both

i was thinking of fitting a ACL race series rebuild kit wat are your thoughts on that???

cheers,
Steve
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Old 15-11-05, 17:27   #142
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No to a decompression plate. evil.

As for how much to drill and tap the holes, your going to have to contact somebody that does machining, ask a few engine places around the joint. I wouldn't know where to start. Keeping in mind you can pick up an entire engine for 2-300 dollars and a block alone for 100.
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Old 15-11-05, 20:48   #143
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will a series 2 block bolt straight on to a series 1 engine
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Old 15-11-05, 21:14   #144
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just a question regarding the N/A auto, i'm looking at running 10psi, do you reckon i should get it done? If so where did u get it done and how much?
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Old 13-12-05, 19:14   #145
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Quote:
Originally Posted by turboluke
ok these are the bits needed for a dodgy conversion that will work well

ECU
injectors
crossover pipe
air flow meter to turbo ducting metal & plastic piping
detonation sensor & wiring
exhaust manifold
turbocharger
dump pipe & exhaust
oil & water lines for turbocharger
could someone tell me what a crossover pipe is? and what is the '&amp' written a few times in the list?
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Old 13-12-05, 19:19   #146
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a crossover pipe is the pipe from the turbo to the intake manifold and the "&amp" is programming lag for "and"

"&amp" = &


Quote:
Originally Posted by Max Boost
could someone tell me what a crossover pipe is? and what is the '&amp' written a few times in the list?
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Old 13-12-05, 19:39   #147
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Quote:
Originally Posted by Michael2427
just a question regarding the N/A auto, i'm looking at running 10psi, do you reckon i should get it done? If so where did u get it done and how much?
uhhh, what exactly do you mean by get it done? the NA auto will hold up fine to 10 psi if thats all you plan on running, it will handle more, just make sure you have a tranny cooler and you should have no problems... the NA auto is alot closer in strength to the VLT auto than say an NA 5 cogger would be to the MX7
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Old 13-12-05, 19:57   #148
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i have been running a decompression plate and have had no probles with it. i think that a lot of people state bad things about them with out ever having used one.
the one i used was made by alc and only needs one head gasket, not two


Quote:
Originally Posted by Bax
No to a decompression plate. evil.
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Old 13-12-05, 20:08   #149
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Quote:
Originally Posted by darkl0n
i have been running a decompression plate and have had no probles with it. i think that a lot of people state bad things about them with out ever having used one.
the one i used was made by alc and only needs one head gasket, not two
thats true, its all heresay... one persons opinion turns into anothers wihtout educated conclusions... just like people that think there isnt a difference between an NA ext fuel pump and a turbo ext fuel pump, some like to think just because the NA pump still works once the conversion is done that there is no difference, there is a difference between the two and i have proof
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Old 13-12-05, 22:14   #150
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Quote:
Originally Posted by Avenged7X
thats true, its all heresay... one persons opinion turns into anothers wihtout educated conclusions... just like people that think there isnt a difference between an NA ext fuel pump and a turbo ext fuel pump, some like to think just because the NA pump still works once the conversion is done that there is no difference, there is a difference between the two and i have proof
Whats the difference on the pumps? I was under the impression they both had the same part number from Bosche.

As for the decompression plates, yeah I'll admit that I've heard bad things about them and thats mainly why I haven't bothered. Especially when they seemed to have stepped up in quality alot - But I guess with the lower compression alot of people think instantly you can run big big boost. I'd be worried still with a gasket in there. But if it can hold it can hold
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