2.0gti turbo conversion?

[barrym381]

Trying to turbo a mk4 too slow has to be the worst idea ever.

says wayne that bought a rover 75 

Sold it 3 weeks ago

(having said that just wait until you see what I have in mind as a replacement  )

A yugo? Haha

is that worse that a 75 

[damien010685]

Good bloody point baz at least the yugo was on top gear!! 

[sk8boy73]

i think he`s gone

[barrym381]

Good bloody point baz at least the yugo was on top gear!! 

so was the sport version of the 75  a sport version did they forget they were rover

[F17BAD]

best thing you can do with a 2.0 8 v engine from the mk4 platform is scrap it

it is a absolute pile of sh!te engine known for fault out the factory

AVOID 

[TEST100]

Ive got a mk3 2l 8v and im looking at doin a 1.8t engine conversion but wouldnt risk putting a turbo on the engine ive got now,even if u cn get 160/170 outvthe block its gona blow sooner or later imo

[bob23]

oops seems i'm on wrong site, my car is push, i'm insane, oh well never mind. adios.

If your still out there and looking to turbo the 2.0 8v , I'd recommend you buy a secondhand 8v engine and build it ready to put in your car. (I paid £50 for a complete 2.0 8v)

Buy an exhaust manifold and turbo from a mk3 1.9td. (I paid £30 inc post for mine)

You will need to take a grinder and slightly shave the top of the exhaust ports and bottom of the inlet ports to make it fit onto you 8v head, but the stud pattern is the same.

Buy a 1.9 td exhaust from the downpipe back, you can get a decat pipe on ebay, you can also get a centre pipe replacement which does away with the middle silencer box, then choose a rear silencer box or keep your own (I paid £90 for downpipe, decat pipe and centre pipe.)

You will need to replace the sump with one that has a return for the oil from the turbo. (I paid £18)

Your oil pump should have a second connection that is blanked off that you can use to feed the turbo, if not replace it with one that has.

You'll have to make your own pipework from air filter to the intercooler, then from the intercooler to the turbo and from the turbo to the inlet and the oil feed/return for the turbo. (I paid £55 for the intercooler and my mate has all the pipework I'll need)

I have replaced all the gaskets and oil seals in the engine, reground all the valves and replaced the valve stem seals and oil seals in the head and have used a high build headgasket to lower compression slightly. (cost around £90 for all the gaskets/seals)

If you want, you can buy a set of kawazaki zzr1100 carbs that have been upjetted and come with a conversion plate to fit a 2.0 8v , they are on ebay for about £150, (I got mine for £130) the bloke I am using to set it up for me when I finish building it says it will be easier to set up with carbs, but you will need a plenum chamber if you do use carbs. (which is the only thing I am yet to buy)

So that route has cost me £463 plus whatever the plenum chamber is going to cost, so for around £500 I'll have build a 2.0 8v turbo, rather than buying for a 1.8t setup.

Obviously you could use a bigger turbo and make a custom exhaust if you wanted to, but I have done it that way so that I don't have to fabricate anything.

[benvictors]

Hhhmmmmm, you have spent £500 on making your 8v engine, potentially, about 30bhp more than stock........
What are your plans for the ecu if you are going to run carbs?
Plus, turbo-ing a carbed motor is an art form itself and is gonna cost you a lot more than that carb kit you bought as they are desgned for N/A cars.

It is a very interesting build if you can get it all running, I do believe you are going to run into a LOT of headaches tho.
Good luck 

[bob23]

To be honest, I myself have no clue about running it on carbs and wouldn't have bothered, but the bloke that is doing it for me has told me what to do, all I have to do is build it and he is going to set it up, He has been doing stuff like this for over 20 years so knows what he is doing and I trust him to do it properly.

So I'm just doing as I am told, he has done stuff like this before and as I work in his garage for free it doesn't cost me anything to have him work on my cars, which is why it will get a new floor welded in, new sills, new wings and a full respray as well.

I'm doing it more to see what the results will be, he did a similar build on a ford scorpio 2.0 8v which standard had something like 110/120bhp and got that up to just over 180bhp, I'm hoping to get about 150bhp from mine on this setup, I want to see how reliable the engine is when it is turbocharged and what it feels like, if all goes well, I'd look into getting a bigger turbo, changing the cam, port and polish the head.

I thought is worth a try as it would cost me £500 to buy and fit a 16v and that would only have 150bhp and I doubt that with what I'm doing I'll get less than that from my 8v, but there is a chance I could get more, also means that the engine going in has been stripped, had all the gaskets replaced, had new piston rings and the bores honed.

It could all go wrong and go bang, or not work in the first place, but if I don't try I'll never know, plus, I like to be different.

[Gavv8]

Do you know what.. i'm with you on this, you can have all the horsepower in the world and still have a boring car and still lose your licence in a heartbeat.. sometimes its more fun just to do something different for sh1ts and giggles and i'm guessing you'd have plenty of people nosing around it at meets and shows when its done.