hi all,

i want to put a coupe 2.0 20v turbo engine in my 1997 bravo hgt 155 but id like to hear some advise on what i can do to make my life tht bit easier. any info welcome, plz holla back coz im ready to buy the engine any week now and i dont kno what to do ....:bang:
when my transplant is done il be going to santa pod to see what i can beat in a race.

johnnieHGT said:

hi all,

i want to put a coupe 2.0 20v turbo engine in my 1997 bravo hgt 155 but id like to hear some advise on what i can do to make my life tht bit easier. any info welcome, plz holla back coz im ready to buy the engine any week now and i dont kno what to do ....:bang:
when my transplant is done il be going to santa pod to see what i can beat in a race.

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The coupe and bravo are the same car underneath so expect very similar quarter mile times to a coupe 20VT.
You are going to need a lot more than just an engine as gearbox, driveshafts roll bars suspension hubs, breaks, exhausts, fuel pump, ecu, oil cooler, intercooler, etc. Are all different, uprated.

Best bet is to buy a running coupe and strip it, this way you can compression test engine etc and check for turbo wear. plus get all the required parts.
(bulldog) might be the be the best person to speak to as he has done the conversion on a marea which is the same as the Bravo/coupe, here is the thread detailing all the work.

https://www.fiatforum.com/marea/153748-first-uk-marea-turbo-build-thread.html

hope this helps

Engine mounts are the same, obviously T20 required more space in the hood (IC, turbo and pipes).
You also need a de-codified Coupè ECU, because is different from HGT and is not possible to program HGT ECU with T20 parameters. And the Immobilizer (electronic key)of T20 ECU won't recognise your HGT key, so you must de-codify the ECU.
The fuel pump in the tank... i think is not necessary to swap it, because usually this pump have more output than required.
Obviously you must take also the gearbox if you want the Coupè top speed... but if you want to run 1/4mile maybe the best thing is to use you stock gearbox, as the gears are shorter (230-240Km/h HGT, 260-280Km/h Coupè) and grant you more acceleration

The T20 with only a good ECU map can easily reach 250hp or more... so ENJOY IT

Quetzalcoatl said:

Obviously you must take also the gearbox if you want the Coupè top speed... but if you want to run 1/4mile maybe the best thing is to use you stock gearbox, as the gears are shorter (230-240Km/h HGT, 260-280Km/h Coupè) and grant you more acceleration

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Coupe 20VT clutch can only just take the power and torque of the engine without issues. A stock 20v one would be put under too much pressure. The gearbox brakes and hubs on the 20vt are uprated for a reason.

bridges said:

Coupe 20VT clutch can only just take the power and torque of the engine without issues. A stock 20v one would be put under too much pressure. The gearbox brakes and hubs on the 20vt are uprated for a reason.

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Yes, right... i forgot the clutch... simple use a T20 one, or a sport one.