Sierra Conversion to Gti Engine

[Try_Me]

hey guys

need to find out how to and wat is needed to do the conversion


thanks nick

[cj]

http://home.iprimus.com.au/pulsr/g13b/

[bczook]

if you can't find all the info on my site you need

give me a pm i might be able to answer your questions

cheers
Brad

[Try_Me]

Thanks much apriciated

do u know how much roughly it will cost to do that and maby make it turbo

Will keep u in mind when sure about doing it tho


Thanks again
Cheers Nick

[Gwagensteve]

AVO were charging around $6k for their swift GTI turbo conversion kit.

I think you will find that you will have plenty of power for the chassis dynamics of a sierra with a swift gti motor. I don't think you need a 180hp sierra or will would to drive it around corners.

The swift GTI motor is a really cool motor but no all that suited to offroad use- they are very very revvy which makes for more difficult throttle control in the bush.

[Guy]

AVO were charging around $6k for their swift GTI turbo conversion kit.

I think you will find that you will have plenty of power for the chassis dynamics of a sierra with a swift gti motor. I don't think you need a 180hp sierra or will would to drive it around corners.

The swift GTI motor is a really cool motor but no all that suited to offroad use- they are very very revvy which makes for more difficult throttle control in the bush.

That sid with the correct gearing they should be quite workable I would have thought ... I would have thought that the same revability would make em pretty sweet .. again with the right gears .. mmmm 9000rpm ..

[sausage]

Ive done one conversion in a 1.0L (bit more of a mission) and about to do another conversion in a 1.3 trayback
Never looked back since the first conversion. Goes really well in the bush - 31's and a rockhopper transfer. Highly reccomend it to anyone. Only just hit redline the other weekend after years of trying

[DeWsE]

I want one : (

I couldn't see the rev's being an issue really, as the gears will control the wheel speed. It just means you have more rev's to play with, which would equal less gear changing.

I love rev'n the crappa out of motors

[bazooked]

hopefully my motor will be goin in soon, look out ricers....

[jcianci]

i got a g13b sierra motor for $20 and a ct12 of a soarer. Should work well.
As for power. It will be basicaly the same, exept for a massive powerband and a surge of tourque from about 2500 revs. I can live with that.

[bczook]

Thanks much apriciated

do u know how much roughly it will cost to do that and maby make it turbo

Will keep u in mind when sure about doing it tho


Thanks again
Cheers Nick

cost me over 3K for the conversion with new clutch,microtech computer, suzisport angle drive dizzy, custom extractors,efi fuel pump
i would estimate about 2k to turbo it, custom manifold, rebuilt turbo, vitara pistons, intercooler + pipework

[OldGold]

I'd love a GTI conversion!

I wish I'd bought Wolverine's old zook... $700 for a GTI converions

[Try_Me]

bczook wrote

cost me over 3K for the conversion with new clutch,microtech computer, suzisport angle drive dizzy, custom extractors,efi fuel pump
i would estimate about 2k to turbo it, custom manifold, rebuilt turbo, vitara pistons, intercooler + pipework


can u give me details etc of were u got it done


thanks nick

[bczook]

I done it at home all work carried out their except dyno tune (rxengineering) and custom extractors (lilford)

if you are interested in turboeing checkout www.redlinegti.com


cheers
brad

[Santos]

i got a g13b sierra motor for $20 and a ct12 of a soarer. Should work well.
As for power. It will be basicaly the same, exept for a massive powerband and a surge of tourque from about 2500 revs. I can live with that.

Wait?! $20!? G13B as in 'Twin Cam'?
There is no justice in this world

[zookieboi]

bczook wrote

cost me over 3K for the conversion with new clutch,microtech computer, suzisport angle drive dizzy, custom extractors,efi fuel pump
i would estimate about 2k to turbo it, custom manifold, rebuilt turbo, vitara pistons, intercooler + pipework


can u give me details etc of were u got it done


thanks nick

ive been trying to find out if you NEED the microtec computer for this conversion
sorry toi bring up an old thread

[jonno_racing]

bczook wrote

cost me over 3K for the conversion with new clutch,microtech computer, suzisport angle drive dizzy, custom extractors,efi fuel pump
i would estimate about 2k to turbo it, custom manifold, rebuilt turbo, vitara pistons, intercooler + pipework


can u give me details etc of were u got it done


thanks nick

ive been trying to find out if you NEED the microtec computer for this conversion
sorry toi bring up an old thread

nope you dont..

i have just bought all the bits for mine.. under $500 But no angle drive etc..

i am useing a mk1 motor and stock computer... should be around 1k in

[flickaz]

I have a 91 WT SWB Sierra running a turbo GTI set up. I did all the conversion and build myself with my brother on and off over roughly 3 months. The engine conversion itself took about 6 hours, wiring about a day and the rest of the time customing all the turbo gear.

I run a Haltech E6X ecu and a JE camira throttle body (30% larger and contains GM style throttle position sensor and idle air controller, as opposed to the mechanical/thermal wax idler on the GTI's). I run a 1 litre surge tank with twin 040's as surge under 3/4 tank of juice was insane (and on boost potentially expensive I installed CA18 injectors (direct swap, increased fron 270CC to 380CC). I avoided the dizzy issue and machined an alloy rotor and mounted 4 rare earth magnets as a crank angle sensor (which gave me the added bonus of full ecu timing control). I stripped the dizzy out and pressed this rotor onto the shaft, works a treat.

I used a theormostat housing off an old barina, which brings the hose out the drivers side and means i could use the standard radiator (figured this was best as the passenger side was going to have a heat producing turbo mounted on it).

As for exhaust I got a laser cutting place to cut my header plate and flanges off the gaskets I supplied and I built the manifold myself with 32mm (3mm thick) steam pipe butt welds. Although any exhaust place that builds custom exhausts can supply the header plate for $40 and generic flanges for bugger all if you just want to build extractors. The remainder is a full mandrel bent 2.5" exhaust, I bought as bends and straight and routed and mig welded myself. Obviously this is too big for a N/A motor but breathes well for a turbo.

The stock clutch lasted around 150m even as an atmo set up runnin a simple (rich as all hell) base ecu map. I replaced it with an extreme outback HD clutch with custom pivot points to avoid cable breaks. It now runs an IHI RHB5 turbo on 10PSI through a modified series 5 RX7 intercooler on a very safe tune pushing 100RWKW and the clutch has absolutely no probs.

I dont really understand where the comments relating to revvy engines and poor low down throttle response come from. The GTI makes more torque per RPM than the stock 1.3 (74Kw VS 49Kw and a larger rev range), so in any case is a step up in power. My set up makes fairly good torque from about 2grand, which with stock gearing isnt hard to get to especially in low range. With the turbo its on full boost by 3500RPM and makes peak power at 7200, limits at 7800, which to me is a big usable power band (over 5000RPM). So far the set up has been bullet proof.

I now plan to put bigger wheels and a 2" suspension lift. I have F100 offset rims and 31" rubber, and will compliment them with a set of transfer gears and possibly a locker, havent researched it enough yet though.

Having done everything (with my brother) except the machining of the dizzy rotor and dyno tuning Ive found the result to be very enjoyable as I built it myself, at an estimated $4500 inc purchase price of the Sierra. I have pics and tech info for anyone that's interested. I cant comment on any other conversions as ive never done them or been in a 1.6 sierra etc but im happy with mine

Project estimates

G13B (93 model, complete with all accessories) $400
ECU $650
INJECTORS $180
CLUTCH $280
MANIFOLD $150
EXHAUST $200
REBUILD TURBO $400
COOLER/PIPING $200
TUNE $350
MISC HARDWARE $200

TOTAL $3010 (purchased the zook $1500)

[zookieboi]

I have a 91 WT SWB Sierra running a turbo GTI set up. I did all the conversion and build myself with my brother on and off over roughly 3 months. The engine conversion itself took about 6 hours, wiring about a day and the rest of the time customing all the turbo gear.

I run a Haltech E6X ecu and a JE camira throttle body (30% larger and contains GM style throttle position sensor and idle air controller, as opposed to the mechanical/thermal wax idler on the GTI's). I run a 1 litre surge tank with twin 040's as surge under 3/4 tank of juice was insane (and on boost potentially expensive I installed CA18 injectors (direct swap, increased fron 270CC to 380CC). I avoided the dizzy issue and machined an alloy rotor and mounted 4 rare earth magnets as a crank angle sensor (which gave me the added bonus of full ecu timing control). I stripped the dizzy out and pressed this rotor onto the shaft, works a treat.

I used a theormostat housing off an old barina, which brings the hose out the drivers side and means i could use the standard radiator (figured this was best as the passenger side was going to have a heat producing turbo mounted on it).

As for exhaust I got a laser cutting place to cut my header plate and flanges off the gaskets I supplied and I built the manifold myself with 32mm (3mm thick) steam pipe butt welds. Although any exhaust place that builds custom exhausts can supply the header plate for $40 and generic flanges for bugger all if you just want to build extractors. The remainder is a full mandrel bent 2.5" exhaust, I bought as bends and straight and routed and mig welded myself. Obviously this is too big for a N/A motor but breathes well for a turbo.

The stock clutch lasted around 150m even as an atmo set up runnin a simple (rich as all hell) base ecu map. I replaced it with an extreme outback HD clutch with custom pivot points to avoid cable breaks. It now runs an IHI RHB5 turbo on 10PSI through a modified series 5 RX7 intercooler on a very safe tune pushing 100RWKW and the clutch has absolutely no probs.

I dont really understand where the comments relating to revvy engines and poor low down throttle response come from. The GTI makes more torque per RPM than the stock 1.3 (74Kw VS 49Kw and a larger rev range), so in any case is a step up in power. My set up makes fairly good torque from about 2grand, which with stock gearing isnt hard to get to especially in low range. With the turbo its on full boost by 3500RPM and makes peak power at 7200, limits at 7800, which to me is a big usable power band (over 5000RPM). So far the set up has been bullet proof.

I now plan to put bigger wheels and a 2" suspension lift. I have F100 offset rims and 31" rubber, and will compliment them with a set of transfer gears and possibly a locker, havent researched it enough yet though.

Having done everything (with my brother) except the machining of the dizzy rotor and dyno tuning Ive found the result to be very enjoyable as I built it myself, at an estimated $4500 inc purchase price of the Sierra. I have pics and tech info for anyone that's interested. I cant comment on any other conversions as ive never done them or been in a 1.6 sierra etc but im happy with mine

Project estimates

G13B (93 model, complete with all accessories) $400
ECU $650
INJECTORS $180
CLUTCH $280
MANIFOLD $150
EXHAUST $200
REBUILD TURBO $400
COOLER/PIPING $200
TUNE $350
MISC HARDWARE $200

TOTAL $3010 (purchased the zook $1500)

awesome mate! best write up ever!
ill be using some of this
just wondering, do you know what 1/4 mile time would be estimate with turbo @ 10 psi ?

[JrZook]

The swift GTI motor is a really cool motor but no all that suited to offroad use- they are very very revvy which makes for more difficult throttle control in the bush.

Whats this like comp to the 660 turbo motor. In past threads this 660 has been all the rave even when it comes to offroad due to correct gearing. Surely the 660 has less torque than the 13b?

Dan

[GRPABT1]

I have a basically stock GTi motor in my zook with 31 inch pedes and 6.5 transfer gears and I don't have any throttle control or lack of tourque issues. It was a pain on big tyres with stock gearing though but so is any zook.

[flickaz]

To be honest I dont know what 1/4 it would do mainly because Im not keen on dumping the power off the line. The rest of the drive train is stock at the moment but I bring power on sensibly, because Im sure 3x stock power will break something!!! lol. I had to give a power run a go once and can tell you from a roll on start it chatters/spins 1st, chirps 2nd. but again I wasnt trying to dump the clutch or abuse it too much You spend too much time changing gears to really be fast but its enough to beat your average commodore.

[zookieboi]

To be honest I dont know what 1/4 it would do mainly because Im not keen on dumping the power off the line. The rest of the drive train is stock at the moment but I bring power on sensibly, because Im sure 3x stock power will break something!!! lol. I had to give a power run a go once and can tell you from a roll on start it chatters/spins 1st, chirps 2nd. but again I wasnt trying to dump the clutch or abuse it too much You spend too much time changing gears to really be fast but its enough to beat your average commodore.

ahah yeah im the same. change gears slow and gradually put power on.
damn sounds pretty fast.