Technical Turbo question?

[hmallett]

Yes indeedy. On the Coupe that requires a bit of choppage of the front end, whereas the Pace one doesn't. Ben's probably going to have to do some chopping anyway, so the world's his oyster! A front-mounted intercooler tends to be fitted on the coops by people who have turned the boost up, or have more serious mods. As Ben doesn't want to go too high on the boost, he wouldn't necessarily need such a large FMIC.
There's a trade off in terms of IC size and turbo lag. The more air there is between the turbo and the engine (which includes all that in the intercooler), the more it takes to pressurise it all to blow it into the engine.
H

 

[smokeme]

Since some people weren't sure about the difference between 270 and 360 degree thrust bearings i thought i would give it a shot

Many conventional journal- bearing turbos use a 270-degree thrust-bearing washer, while the new conventional and ball-bearing turbos use 360-degree thrust bearings. The advantages of a 360-degree bearing include a full circle of lubrication, six orifices on the washer instead of three for the 270-degree unit, and an updated pad strategy to better disperse oil where it's needed.

These pictures clearly show the difference, the golden one is the 270 and the black the 360. If you have the opportunity to use a 360-degree bearing, jump at it.

If you need a better explanation just say so, i think the rest has been answered by other people

Nelson

 

[sumplug]

if you are thinking about adding cams and a turbo to your abarth,then you are not going to do it on the cheap.the block will need altering,crank,con rods,pistons,valves,all the electrical side.will cost thousands.if your are real serious,have a word with trevor on NYSSA RACING SITE.

 

[smokeme]

if you are thinking about adding cams and a turbo to your abarth,then you are not going to do it on the cheap.the block will need altering,crank,con rods,pistons,valves,all the electrical side.will cost thousands.if your are real serious,have a word with trevor on NYSSA RACING SITE.

How did you come to that conclusion!! That isn't anywhere near right, the only thing that needs changing is fuel management and what ever manifoldwise to bolt the turbo on including the oil feed lines to the turbo. If you want to push serious boost then the compression needs lowering by changing the pistons. The crank and rods are nitrite steel and can take serious power and the valves are coated from the factory. Electrical wise nothing needs changing since fuel management is needed.

Just ask anybody with a turbo fire engine

BTW if you think the factory nitrite treatment is not good just remember that my turbo 999cc 8V did 186hp at the crank with stock rods and crank, this from an engine with 45hp stock

 

[Ben R]

How did you come to that conclusion!! That isn't anywhere near right, the only thing that needs changing is fuel management and what ever manifoldwise to bolt the turbo on including the oil feed lines to the turbo. If you want to push serious boost then the compression needs lowering by changing the pistons. The crank and rods are nitrite steel and can take serious power and the valves are coated from the factory. Electrical wise nothing needs changing since fuel management is needed.

Just ask anybody with a turbo fire engine

BTW if you think the factory nitrite treatment is not good just remember that my turbo 999cc 8V did 186hp at the crank with stock rods and crank, this from an engine with 45hp stock

Yeah that's what I was thinking! I'm not intending to run serious boost only between 7-10psi. All I need is the cams intercooler & lower comp pistons & I can use an in car adjustable boost gauge to control the turbo. The only problem I can see is remapping the ECU. I wasn't expecting to do it cheaply anyway as the supersprint manifold is about £450 & I should imagine the pistons & cams are going to be very expensive! Thanks for all the info guys!

 

[sumplug]

you obviously no nothing about the 20 valve engine.the crank runs in a strange way in the turbo engine.nyssa racing will tell you all about it.the head and valve shape are different.what about the ecu to turbo sensors? what about cooling? it is not as straight forward as you think.anyway good luck.you will need it.!!!!!!

 

[Ben R]

you obviously no nothing about the 20 valve engine.the crank runs in a strange way in the turbo engine.nyssa racing will tell you all about it.the head and valve shape are different.what about the ecu to turbo sensors? what about cooling? it is not as straight forward as you think.anyway good luck.you will need it.!!!!!!

No need to be aggressive mate. I'm sorry but you should try reading the posts before commenting! :shakehead

 

[smokeme]

you obviously no nothing about the 20 valve engine.the crank runs in a strange way in the turbo engine.nyssa racing will tell you all about it.the head and valve shape are different.what about the ecu to turbo sensors? what about cooling? it is not as straight forward as you think.anyway good luck.you will need it.!!!!!!

He doesn't say he want to convert it into a turbo engine, he said he wanted to turbo HIS engine . There are no ecu to turbo sensors in a na to turbo conversion unless you have a screw loose and convert it to stock configuration, at that point i would burst out laughing that you spent thousands when you could swap in a bone stock turbo engine for a fraction of that cost not to mention the headaches you would get during a conversion.

Basically any engine can be turbocharged, it for durability and higher power that the compression is lowered .

 

[sumplug]

yes,quite agree any engine can be turbocharged.courtney were doing vauxhall conversions for years.but on this engine,you will have many things to sort out before it will work.for all the money spent doing it,why not put in a turbo unit and ecu.much,much easier.

 

[hmallett]

The 20V Turbo engine out of the Coupe is "only" a 2 litre, rather than the 2.4 of the Stilo Abarth. Not sure if the 20V Turbo Coupe engine would go straight in. The 2.0 and 2.4 engines are NOT the same.
H

 

[Ben R]

Plus the stilo is drive by wire the coupe isn't! I would need to keep the standard ECU as it also controls the selespeed gearbox anyway.

 

[sumplug]

the drive by wire uses a throttle sensor so you could just change manifolds.the ECU though will be a problem.how are you going to control the turbo? what about the oil pump,cooler and feeds to the turbo? i know these last things are not to difficult to sort,but it all needs careful planning.the selespeed gearbox has had problems with its electrics/sensors in service.if you put more torque through the gearbox,do you think it will be up to the job?

 

[Ben R]

Well the plan is to use an in car adjustable boost gauge to control the turbo, I'm going to get the supersprint manifold eventually as it matches the rest of the system & it says in the catalogue it's for a turbo as well, so I will have to investigate that further. Oil feed shouldn't be too difficult to sort it's why I want to get the turbo, intercooler & manifold first to see where everythings is going to be placed! the pistons & cams I'll get last but have them fitted first, which I'll have done professionally, I'll also ask them to rework the head & inlet manifold whilst they're at it!

 

[sumplug]

ok. what about the gearbox though?

 

[Ben R]

Most of the problems with the selespeed box seem to be centered around the actuator, me myself I've never had any problems with it & also I think the new 159 Alfa is having it coupled to a 3.2 V6 so I can't see there being any trouble there. TBH I'd be happy with a genuine 200bhp @ the wheels which would probably only be 230-240bhp @ the crank so it's not like I'm doulbing the horsepower or anything.

 

[sumplug]

BEN.
seriously,good luck with your project.by the way,i wasn't being aggressive to you.i was only a little concerned you were taking on a flawed project.now i see you have thought things through.again,good luck.

 

[Ben R]

Thanks again for all the replies people! Just one last thing I want to also fit the brakes from a coupe but I've been told I have to have the coupe brackets & drive shafts as all the ABS sensors are different, so if I'm turbocharging it anyway it would sound best to fit the driveshafts anyway. Can anyone tell me how much I'd be looking at for a set of driveshafts & are they easily attainable? Cheers!

 

[sumplug]

look on the FCCR site.there was some 20v turbos being broken.maybe this will be suitable for parts and info.

 

[hmallett]

Well the plan is to use an in car adjustable boost gauge to control the turbo, I'm going to get the supersprint manifold eventually as it matches the rest of the system & it says in the catalogue it's for a turbo as well...

I think you mean boost controller, rather than gauge. An electronic one is what you want, such as the Apexi AVC-R.
I'm confused about the manifold. Surely it's either for a turbo, or it's not?
Dunno about the brakes and driveshafts I'm afraid.
H

 

[smokeme]

A trubo manifold will have a turbo flange on it, if it has a turbo flange it won't fit the exhaust