turbo advise needed
Turbo Mini Forums

I think the Cinq cooling system is fairly good, ( certainly compared with the A series lol)

thermostat is the opposite end to the water pump, so it stands a chance of having even temps across the head.

hi guys. latest update -

the GT1752 is paided for and will be with me by friday, he has done mw a GT17 hybrid by using the bearing housing off my turbo (which shares the same bearings etc as the GT17/20) so this means i can stick with my oil pipes etc and also no water cooling.....but i use a turbo timmer so im happy with that, a guy is coming to give me downpipe flange bracket tomorow and im using the gasket as a template to make a new manifold adapotor plate on a new manifold.........

and my j and S Ultra safe gaurd ignition controller is paid for and on its way too! ill be going to MPI in the next few weeks when ive finished the new engine build off as i had a look inside the exhaust valves today to see what i new would be the case from past exsperience and thats two black valves (centre) and two white valves (outer) the usual case off rich inners and weak outer cylinders.....tut

so we will see what a 1250cc f.i.r.e 8v engine running a GT17 with 8.5:1 c/r on the lower comp pistons and rods and MPI can do at 15psi soon yey

jason

It will be interesting to see the diference :)

Excellent news! You didn't piss about. I look forward to updates

On 12th Nov, 2009 Paul S said:

I think Gary OS has taken over my role as the forum smart arse

std 998 A+, g295, MD266, RHF4, 109hp @0.8bar/5400rpm

Hi ive been reading this topic and find it interesting in the way you fiat boys tune engines, you use alot of other fiat bits and pick n mix between other cars wheras alot of us mini peeps use alot of aftermarket parts.

is there not alot in aftermarket parts for fiats yet or is it just prefurred to use other fiat bits?

oh and best of luck with the engine, looking forward to seeing the difference in power.

rick. :)

Edited by Rick.SPI on 3rd Mar, 2010.

Right everyone, been trying to post up on the forum past couple of days, guess its been down but ow well here goes.
This is the latest update on the cinq -

The GT1752 Hybrid is back and mounted to the car, ive made a new adaptor plate on a new manifold, modified my old down pipe to fit etc and the build up has begun.
Does anyone now what to the preload is on the GT17 as ive had to spin the comp housing to suit and as a result the actuator may have moved slightly??

here are loads os pics and info on the project so far have a nosey here is the link - scroll down on the link page,

http://modifiedmonsters.forumotion.net/tec...roject-t271.htm

thanks

jason

Edited by 1250cinqturbo on 6th Mar, 2010.

coming along there!

we normally work on the "half a hole preload" and go from there.

i thought so, thats roughly were i set it anyway so i should be ok. thanks

jason

hello guys, bit off good and bad news -

the car is up and running with the new turbo on, its spools up very fast and drives better off boost etc, it hasnt yet been setup but there is a reason why -

its burning oil, smoking bad on tickover and sometimes when i drive aswell.

I checked the oil return and its free from restictions and is free flowing down into the sump.
And one thing i thought it may be was a lack off back pressure due to my exhaust having no real restriction but it was never a problem before and the new GT17 uses the same GT15 centre housing,seals etc and it didnt do it before. There is oil dripping from the turbine housing so its coming past the seal but why! its neawly built up! daaam

I did a quick test for back pressure by putting my foot over the exhaust to build up pressure but the smoke is still creeping out, and its as bad as a failed turbo at times, after being on over run for some time then re-applying the throttle its smoking like a bugger.

Im going to ring midlands up on monday but i dont want to strip it all down and send it back if its my exhaust causing this, any of you guys had this problem ever???

My exhaust by the way is a 2" turbo back with a single straight through stlye silencer with baffle material around the tube, how does this compare to your mini exhausts??

thanks from a very depressed jason haha

similar construction to ours,

2 inch all the way thorigh with one straight thru silencer, or bigger.

im thinking faulty unit then, especialy seen as the oil is dripping from the turbine housing.....not good

aaarrrrghhhh guess its going to have to come off and be sent back again, not what you want when you pay 360quid for a turbo build.

thanks

jason

sounds like they forgot to put the turbine ring in jason .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Or an incompatability between the GT17 shaft and GT15 housing where the seal runs which may not have been obvious at the time.

Schrödinger's cat - so which one am I ???

hhhmm, yes they may have forgot the ring seal but id thought it would actualy be worse than it is, but then for oil to be running out of the turbine maybe your right......and on the subject of compatability, he said that the GT15,17,20 all use the same housing, some water cooled some not but i surpose its a possability (one i hope isnt true).
If that was the problem they could just fit me the GT17 housing but i dont want to plumb in water pipes as its bad enough for pipes and room around there anyway and the oil fitting are differnt too???

thanks

jason