we will take the Q4 on RR this spring/summer, so will let you know the results. first with standard head and after that with using thema non turbo cams ( 239 / 9,5mm )

actually the GT40 82mm 50 trim is more forgiving than the T04E 60 trim according to the maps.

The newer GT series turbos are no doubt more efficent across a wider range. the 82mm GT40 wheel is O.K. above 3500rpm on the map at 1bar which is better than the 4500rpm of the 60 trim

hmm.. heres a link to the master power, that we use :
http://www.partsexpressonline.com/highperformance13.htm
its actually a bit different, than garrett, it has 58/84mm comp. doesnt garrett have 58/75mm

nice info guys.
ive recived a email from ATP and tolled me that they dont have the T3 super 60 because its not made by garret( but theres a nother company that sells the super 60 very cheap )
and that the difference between both is :
T3 60 trim form ATP 31 lb/min,
T3 super 60 35 lb/min
form tuboelements.com for the super 60 its 695$ with waste gate and actuator with the ATP dosent inculde waste gate or actuator.

what about: make new dp and buy this.. master power 802138 ?
http://www.partsexpressonline.com/highperformance3.htm
good for 350hp, with internal gate. 54,1mm compressor and 49,5mm turbine. one result I know is 365hp / 1.35bar on saab 2.3. ( stock engine )

BUY A GT28R !

dont want to take apart the engine now dont have money to change rods, pistons and lot more now , thats why with the super 60 is ok , when I have the money wich wont be this year then ok but not now cant afford so much.

a super trim 60 will be ok, it'll get you to 280hp, and it's not advised to go much over that with a stock engine.

The one i have has a less restrictive turbine wheel with backcut blades to give a bit more top end power it's good for 330hp but that's with 1,7bar

wow 1,7 now thats what i call high or perfect. jejeje

the super 60 is the perfect choise for a stock engine

with a gt28r u'll get your 280hp (with an option to 300), with a super 60 u'll get 260 (maybe 280). so why n0t gt28r ? there is no need to change rood&pistons with 280hp.

i got 260bhp with super60, full exhaust with decat and evochip! so still a few mods to be done which should help get towards 280bhp!

arent these just for 20vt unless you exstensively mod loads of stuff??

If you buy from ATP, you can get it in a T3 flange, then the next thing to worry about is the fitment on the exhaust, as most come with a 5 stud arrangement, but ATP do a 5 stud to 3 bolt converter

like I said before dont wont to have a head ake to change rods pistons and much more thing internaly form the engine.
whant to keep the standard engine and get the max power .
T3 super 60 is the best choice , then in a few years form now ill do something else

than 260hp with the super60 and rr it... it is your car =)

Interesting topic its exactly what i want to know..

So this Super60 is quite out of date and isnt a ball bearing turbo? It says on that link..

"T3 series turbocharger 60 trim. 60 Trim T3 with .48.. 250HP 4 Cyl. Standard T3 4 bolt inlet and T3 5 bolt discharge exhaust" - does this mean its rated to 250hp? so your not likely to see the 280 your going on about?

Where as the GT28R is a roller bearing turbo.. Does the GT28r fit the coupe without any modifications other than the 5-3 exhaust adapter plate????


You may also want to read this.. http://www.atpturbo.com/root/technicinfo/gtvst.htm

That makes alot of sense as to why you should head in the GT28R route.

Anybody able to confirm if im right/wrong about the GT28R?

anybody?!