Gtx45R Rear Housing Choice On Rb32

[bigmikespec]

Thanks for the input guys. At the moment it looks like im sold on the 7175 (GT42) turbo.. Ive decided to lower down my power goal to something more streetable (650kw),

GTX4202R

[Tyranus]

I could go that, but im leaning onto the Precision atm.. My friend is getting his car tuned this week (26/30) with the 7175 (GT42) 1.12 a/r im curious to see what kind of figure he puts out. Im going to use his car as a guideline.. I know of someone who also has a 26/32 with a GTX4202R his making 630awkw on 29psi and he claims that he gets full boost at 4500rpm.

[Daz]

Gtx42 currently on special at GCG

[Rbdirty30]

If I knew a gt42 would hit full boost by 4500rpm I would of brought one instead of my 6766 for my new engine oh well

[bigmikespec]

I could go that, but im leaning onto the Precision atm..

Why would choose a Precision over the Garrett?

[zebra]

Because results speak volumes

[GTRPSI]

I would check the prices, and check rebuilding costs before making a decision......then take it from there.

We went precision 7175 ONLY because we go it new for a ridiculously low price after someone abandened their drag build and it was perfect for what we were targeting.

I would have prefered the 7175 GT42 style though.....

Edit, nothing in my inbox Sedat

Edited December 10, 2014 by GTRPSI

[bigmikespec]

Because results speak volumes

So does a compressor map; and it is not subject to different dyno, conditions, etc

[zebra]

You can look at you compressor map all you like

I'll look at cars running 8s in street trim

[GTRPSI]

I could go that, but im leaning onto the Precision atm.. My friend is getting his car tuned this week (26/30) with the 7175 (GT42) 1.12 a/r im curious to see what kind of figure he puts out. Im going to use his car as a guideline.. I know of someone who also has a 26/32 with a GTX4202R his making 630awkw on 29psi and he claims that he gets full boost at 4500rpm.

If I knew a gt42 would hit full boost by 4500rpm I would of brought one instead of my 6766 for my new engine oh well

Coming on boost or at full boost Sedat?

Ask him for the dyno graph, what compression and cams he is running.

Would be interesting to see 29Psi at 4500Rpm.

If true then our 7175 with .96 housing will be on song earlier or about the same being a 3.0 bottom end if compression and cams are similar.

[bigmikespec]

You can look at you compressor map all you like

I'll look at cars running 8s in street trim

Yes I don't disagree that results are important but results coupled with choosing the right compressor from a map is the ideal scenario.

I am interested to know why people choose otherwise, if they cannot offer any other reason other than they saw a result on the internet then that is fine with me.

[Tyranus]

I dont know the man personally, all i know that he has that setup. His been posting on FB claiming that so im not sure if his shit talking or being truthful.

[jet_r31]

if you looking at the 7175, id be relooking at the 6870 for sure..

cheers

darren

[Mick_o]

^ This man knows! Exactly what i said a page ago but got ignored!

[GTRPSI]

No he is not ignoring, thank you for the suggestions, he has just pulled back and watching.

My last words to him last time we spoke were sit back and wait to hear and see more results for the 6870, dont rush in now as its still early.

As is said to him, could be what he was looking for.

His turbo and manifold purchase will be made last, now he has his RB32 bottom end to be built, his head is ready, then study results and pick the turbo.......

Edited December 13, 2014 by GTRPSI

[bigmikespec]

His turbo and manifold purchase will be made last, now he has his RB32 bottom end to be built, his head is ready, then study results and pick the turbo.......

That is the way it should be done!

[Tyranus]

As mentioned above im just going to wait and see how these gen2 pt's peform.. garrett might give them a reply by releasing something better.

[jet_r31]

not real smart, the camshafts should always be chosen when the turbos chosen, unless your conservative, which you

havnt been..

the motor is way over cammed for anything smaller than a gt45 with a big hotside, your just costing yourself

response for no reason at all..

cheers

darren

[GTRPSI]

Hes certainly not being conservative.

Cams were chosen by the engine builder and cam manufacturer based on his Nitto 2.8 stroker and planned use, now with the 3.2 its changed the game, cams will be simple enough to swap over when the time is right should he want more bottom end.

Remember he built it one way, then sold the bottom end to go 3.2 so some chages to the head may be needed.