gti motor into si. will it fit easily
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  1. #1
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    Default gti motor into si. will it fit easily

    Djvue has a 91 series 3 gti motor and box 4 sale. I want to put it in my 92 205 SI (not gti). Is this a straight fit and does it need any other work, such as new loom , ECU etc.

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    Fellow Frogger! DjB8V's Avatar
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    There is a thread that covered this.

    Start with this. It might help you weigh up whether you really want to do it. Si 205s are pretty good cars and should'nt be tickled around with (I think).

    Turning a 205Si into a GTi

    I think it would be easier to get a 205GTI.



    Chris


    205GTI - 8 valve, single cam coolness.



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    I had a read but there is only Peter Ts comment about using a short engine. The rest of the time they debate the sence in doing it. I have a low km Si 205 and i want more power out of it. There is an engine going cheap so I was just thinking is it easily done?

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    Quote Originally Posted by anesti View Post
    I had a read but there is only Peter Ts comment about using a short engine. The rest of the time they debate the sence in doing it. I have a low km Si 205 and i want more power out of it. There is an engine going cheap so I was just thinking is it easily done?
    Only thing wrong with the Si is lack of torque so yes a good conversion.
    Unless you want to rewire the whole front part of the car you will need to leave the Si ECU in place, just cut and tape up the leads you don't need.
    Add the DKZ ECU and ignition, most leads just go between this and the engine so not hard to join it into the Si wiring system.
    Alternatively you could simply use the Si manifold and management complete as it is, the question is how well will the Si management cope with the extra 300cc?
    Graham

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    1000+ Posts pug-life's Avatar
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    I have a series 1 out of my 89' Gti if you would like it. Working. Was literally just about to post it in the F/S section until i saw this thread. Had planned to reco her to UK spec.
    $150 if you want it.

    You can run a Gti with a SI box though yes?

    But I'm in vic & no loom though sorry.

    food for thought

    CHeers

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    Great now I just have to find someone to do the job, if anybody is interested in taking it on let me know.Ill only break it.

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    Quote Originally Posted by anesti View Post
    Great now I just have to find someone to do the job, if anybody is interested in taking it on let me know.Ill only break it.
    Wouldn't be worth it to pay someone, would cost too much by the time they figured out the wiring.
    Graham

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    1000+ Posts cam85's Avatar
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    Rip everything out and make it super light. Really short box and got to the track. Probably more fun and money better spent. Or take the head off, skim, fit a thin gasket, talk to someone about a cam and that will probably be a nicer motor than the S3. They are pretty un involving engines to drive. If you do go the S3 route, do a little work to it while its out to get a little more life out of it. Worth it if your going to bother transplanting it.

    My Opinion anyway

    Cam
    94 205 Gti Classic #9
    91 205 Si
    87 205 GTi Race Car
    http://www.aussiefrogs.com/forum/res...-race-car.html

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    Thanks Cam i value your opinion, Ill bear it in mind.

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    Fellow Frogger! DjB8V's Avatar
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    I hope you have a decent wallet. Engine conversions are never easy. Do your research and try it yourself.



    Chris


    205GTI - 8 valve, single cam coolness.



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    Quote Originally Posted by DjB8V View Post
    I hope you have a decent wallet. Engine conversions are never easy. Do your research and try it yourself.



    Chris
    I have a Pierre Cardin wallet, shame there is little in it. I would like to do the job right and do it once. The car deserves it as its in fabulouse condition. Dito to doing the research, I couldnt tackle it myself though as i dont have the knowhow, tools , garage or time.

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    Quote Originally Posted by anesti View Post
    I have a Pierre Cardin wallet, shame there is little in it. I would like to do the job right and do it once. The car deserves it as its in fabulouse condition. Dito to doing the research, I couldnt tackle it myself though as i dont have the knowhow, tools , garage or time.
    Keep the car standard then, if it is that good condtion the engine should go well enough, just ones like my road car with a tired engine that need a transplant.
    Graham

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    Quote Originally Posted by GRAHAM WALLIS View Post
    Keep the car standard then, if it is that good condtion the engine should go well enough, just ones like my road car with a tired engine that need a transplant.
    Graham

    I could do that as well, you see ive rebadged it as a 1.3 Rallye, Ive also powder coated berlingo rims white and put advan yoko semi slicks on it. So it looks the part with the rallye decals. I just wish it had more go to match the peugeot sport decals.

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    1000+ Posts cam85's Avatar
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    I think the rallye has less power than you have but were lighter. That was there 'thing'. As said before. To keep it close to original, just tweak the current motor to a higher spec. Not too much power for the chassis..

    Cam
    94 205 Gti Classic #9
    91 205 Si
    87 205 GTi Race Car
    http://www.aussiefrogs.com/forum/res...-race-car.html

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    Quote Originally Posted by cam85 View Post
    I think the rallye has less power than you have but were lighter. That was there 'thing'. As said before. To keep it close to original, just tweak the current motor to a higher spec. Not too much power for the chassis..

    Cam
    the rallye had twin webbers right. Is that a possibility with the 1.6 si engine and would it give the gains i desire. I can buy original ones from ebay.

    maybe thats the go.

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    Quote Originally Posted by cam85 View Post
    I think the rallye has less power than you have but were lighter. That was there 'thing'. As said before. To keep it close to original, just tweak the current motor to a higher spec. Not too much power for the chassis..

    Cam
    Th Si has 90 hp the Rallye 105 but that was the proper Rallye with twin sidedraft carbies, the UK 1.4 is probably about the same as the XU5M.
    You could put a GTi inlet manifold and fuel system on, still need to change the ECU and would need to run a dissy (although you could proably leave the Marelli ECU running the ignition while the GTi one runs the fuel) but at least you would save time and mony on the mechanical transfer.
    Just noticed the carbies post, yes that would be a lot simpler, just leave the original ECU to run the ignition.
    You would proably need a better cam but could leave that for later on.
    Graham

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    Original Rallye carbs were for the 1.3 TU engine and fitted behind the engine, carbs may possibly work on a 1.6 XU but manifold definitely wont. Plenty of Weber set ups for XU engines available in the UK.
    Graham

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    1000+ Posts cam85's Avatar
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    Haha. Thats a great idea I think! Something different and with a few other mods will work really nice I believe. You will need a manifold etc but that wont be too hard to come by. WIth the engine you have those Ks you should be able to take the head off and give it a touch up, more compression, and a cam and it should be sweet.

    I dont think the rallyes had webers but think than ran a carb of some sort. TU engine..

    Like this one!
    Attached Thumbnails Attached Thumbnails gti motor into si. will it fit easily-205-gti-moteur.jpg  
    94 205 Gti Classic #9
    91 205 Si
    87 205 GTi Race Car
    http://www.aussiefrogs.com/forum/res...-race-car.html

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    Quote Originally Posted by cam85 View Post
    Haha. Thats a great idea I think! Something different and with a few other mods will work really nice I believe. You will need a manifold etc but that wont be too hard to come by. WIth the engine you have those Ks you should be able to take the head off and give it a touch up, more compression, and a cam and it should be sweet.

    I dont think the rallyes had webers but think than ran a carb of some sort. TU engine..

    Like this one!
    That's an XU, Cam.
    The proper Rallyes had twin sidedrafts but these only came in LHD.
    The UK ones just had a 1.4 with single carby. There was one of these for sale recently on Ebay, immaculate yellow, had a few bids
    The German ones had a 1.9 but DFZ
    Graham

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    Yes I think carbies is the go. Ill get on the uk sight and have a read. Thanks guys.

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    1000+ Posts cam85's Avatar
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    Quote Originally Posted by GRAHAM WALLIS View Post
    That's an XU, Cam.
    The proper Rallyes had twin sidedrafts but these only came in LHD.
    The UK ones just had a 1.4 with single carby. There was one of these for sale recently on Ebay, immaculate yellow, had a few bids
    The German ones had a 1.9 but DFZ
    Graham
    I know its an XU, was just showing the twin webers....

    Cam
    94 205 Gti Classic #9
    91 205 Si
    87 205 GTi Race Car
    http://www.aussiefrogs.com/forum/res...-race-car.html

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    1000+ Posts 504-504-504's Avatar
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    Quote Originally Posted by GRAHAM WALLIS View Post
    Only thing wrong with the Si is lack of torque so yes a good conversion.
    Alternatively you could simply use the Si manifold and management complete as it is, the question is how well will the Si management cope with the extra 300cc?
    Graham
    Had hoped I would have been able to answer that by now.
    Bought a recon 205 Si engine on eBay a while back.
    Vendor said it had been taken out to 1.9L but couldn't supply details.
    Finally got some paperwork from him and contacted the mechanic that did the recon.
    Luckily he remembered the engine.
    Guess what , its still 1.6L.

    Paul

    “A straight is merely the distance between two corners.”

    “Corners: radar free zones.”

    Current: Peugeot 205 GTi Mi16 1987
    Peugeot 205 Si, one red one silver, both 1991.
    Peugeot 504 Wagon, V6 and 5 speed gearbox.
    Isuzu (Holden) Rodeo, 4WD dual cab, extended chassis.
    Past: Goliath, Isuzu Bellett, Austin A30, Peugeot 203, 403, 404, 504,505.
    Subaru 4WD wagon, Toyota Hilux Dual Cab Diesel 4WD.

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    1000+ Posts djvu205's Avatar
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    I think the rallye had twin solex carbs? You might be a bit late if you want my motor box anyway!

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    Great, i was just going to pm you. I was hoping you were reading. Thanks djvu glad you sold it someone got a great buy, hope they put it to good use.

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    1000+ Posts djvu205's Avatar
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    Waiting for funds to clear

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