Before i remove the holset for good, for a garrett unit(smaller) i want to have a chance to make it spool faster.i read in one of the other forums that a garrett journal bearing housing can be machined to provide room for the turbine wheel of the holset and therefore if the AR is smaller, it...

i understand that, but im not building a drag car. If i can get a decent 550hp from that turbo that would be ideal for me,so that smaller hotside should be the one that works.what about that link above of the stainless steel hotside?

since i already use an external wastegate, does that mean that the turbine housing will come with an extra hole in it? or will that be completely blocked?on that link it says that the housing is compatible with 4 or 5 bolt configuration. It does not mention if it is .55ARif it is, then i...

so on that i can choose Holset HX40 and then: without wastegate?OR is this another 0.55??Tim's Turbos - Turbo Rebuilding - Stainless Steel Turbine Housing -4/5 bolt patterni contacted Tim and he said that there is no smaller than .70AR housing other than the mitshubishi one,but i did...

thats one option im considering, others include looking into getting a KKK hotside and getting it to fit the holset.It would be of a smaller ARis there a T3 option on the HX35 turbo?

Hello,i now have the holset fitted and slowly giving it some boost. I can say that it is a big turbo and it will wake up, but my initial thoughts are that the boost is coming too late for my taste.Is there a hotside available with a smaller AR than the 0.70, that also comes with a T3 and...

Hi Richard,i switched to the T3 because my exhaust manifold fits easier this way,and because of a 5cyl engine, i didnt want to make a divided exhaust manifold all over again.I bought the hotside from bullseye turbos.Im also going to do some cryogenic treatment on the hotside, exhaust...

thanks andy... i will be taking loads of photos to capture the moments, and hopefully get everything right!

so you had the turbo spooling up at 3780rpm on the 2.3l engine? and you had the same reaction from the HX40??? that is brilliant!!!!

what spec is the engine you have on the saab?

that is great news abou the EGTs as 850C on that probe placement makes it round about ok for 950C on the hotside itself! On the cruising speeds i get around 700-850 max on 6th gear and fairly lean mixture, but i put it down to my very small hotside on the garrett now (0.63AR as well), so it may...

Hello everyone,in about 2 weeks time i will be installing a Holset SuperHX40 with the T3 0.70AR on an audi 2.2 5cyl engine. Im hoping to be able to achieve full boost at no later than 4200rpm and my goal is to reach 500hp crank with relative humane boost level.(hoping about 26psi)Many...

Hello all,im planning to use a Holset HXSuper40 in my audi RS2 (5cyl engine).i have most parts gathered up, and trying to make sure that the turbo will work properly.i read on the holset forums, which i cannot post at, about oil specific psi needed to work properly.the Audi has about...

thanks!!!i thought so!i have been looking into the holset thread but cannot write in it yet.im definitelly getting this one fitted!Its not going to be anytime soon,but a definite yeswill keep you posted

Thanks! that clears a few things up...now a more interesting question is what to tell people that 'advise' me not to use this turbo because it is a diesel turbo... and someone told me also that it will give me High EGTs with small amounts of boost...because it is a diesel turbo....doesnt...

it is nice to be tuning with a wideband,and always needed. BUT if you want to know the limits, it is good to have the EGT there to know that you are not going to melt something...

here are 2 more maps i have found but i am not sure what B85 and E85 mean when it comes to HX super40

Hiim new here, and im going to be using a holset HX40 on a different car, its a 5cyl 2.2 audi engine.I have already ordered the T3 0.70AR hotside to go along,and the turbo is going to be a 7blade super 40.Now unfortunatelly,most of the cmp.maps i see online to compare come in lbs/min...