20v NA Engine vs 20VT Engine - Supercharging

Im still toying with the idea of bolting on a mini couper s Eaton M40 supercharger onto my car. Its been done with a 20v NA engine before on a Fiat marea.

My question is, is there much difference between the NA and Turbo engine? Would it be correct to say the 20VT engine is "stronger" dare i use that word?

The eaton m40 isnt a massive supercharger and should bring the NA up close to the BHP of a Turbo my concern is putting too much strain on the engine.

Any comments . . . .

Cheers

Mario

also worth pointing out that my engine has done 74,000 miles

this sounds like a very interesting project...
any ideas on costs?
do you have to lower the compression ratio to fit a supercharger? or did i dream that i had heard that somewhere?

no it is a bolt on type job!

there is a massive wright up on this!
cant find the like now...

Mario do you still have it?

bolt on?
jesus!
no changes to manifold, ecu, etc?

Nope i will dig out the article and post it in a bit...
..... Its a bolt on job worth a remap after. Im
Planning on starting this project in the next few months just gatheting parts at the mo...

well, lucky i sent you the list then lol

any luck with that charger mate?

what about costs?
keep us posted!

who needs a turbo anyway...

have a read guys (thanks for the article marco)

http://www.fiatforum.com/marea/152914-exclusive-worlds-only-20v-supercharged-marea.html

This guy has supercharged a marea with a Fiat 20v NA Engine

Price wise i will be going for a
Mini Cooper S Eaton E45 supercharger - they fetch about £100 on ebay second hand with low mileage.

I will also need FMIC, dump valve, hoses, metal to make the brackets etc etc. Going to be an interesting project that i will be working on with marco. once it starts i will move over to the projects thread.

Me

Sorry for not replying sooner, I'll post some picks of the brackets in a bit (if I can find them)

jesus have you read the thread on the supercharged marea?
that guy is bonkers!
now talking about a twin engined marea, 4L 40v, one engine up front one engine in the boot!!
christ and i think changing a wheel is difficult...

haha he is a crazy guy!

i have to admire people like that
crazy, but fascinating!
did anyone ever see that twin engined golf vr6?
i wonder if anyone has ever thought of a twin or mid engined coop?
v8 rear wheel drive.... thats the dream!

you got the dream bit right lol

hehe i lol"d. good luck with the project though.

Again, also interested in the compression ratio differences. I know the valves are sodium coted or filled on the 20vt to help with heat and strength

is the bottom end on a 20v and 20vt the same?

that guy has a great project, he lives local to me, the only bit that consurns me is the lack of mapping and fuling. as well as complete lack of any boost control

I strongly suspect thats why he has moved on to car number two

Hi, by the time I finished the car, it was running a dastek unichip B
without the unichip the car actually ran to rich
reason for the new car is sleeper all the way, plus supercharged and turbocharged.
Boost is controlled by the size of the pulleys

I would put a 20VT head on if you're going to supercharge as the 20VT has better timed cams for it and also sodium filled exhaust valves.

You are likely to get quite a lot of blow by - these engines get quite oval bores in non-turbo form, so with that sort of mileage it will not work very well (Discussed previously)

i know this is a old post but did you have any luck with the super charger?

No mate..

Marios mint 20v had a short life..

part of it still lives on... on the number 22 bus driving round london.

still got all the parts to make it work.

pm me if you wnat more info but this thread shows every thing you need to no