N54Tech.com - International Turbo Racing Discussion
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Acetech Acetech is offline
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Default Fast spooling single ??? - 08-11-2015, 07:23 PM

If I do a single I want fast spool fast response, no need for more than 600 wheel, preference for bottom mount though no twin scroll manis exist in bottom mount. May not be a big deal.
I found Terry ran a 5862 turbo and remarked it was great for street and spool.
What recommendations do people have? Can a small single match the spool and response of current hybrid twins?
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Riceball777 Riceball777 is offline
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Default 08-12-2015, 02:22 AM

The best 600whp turbo is a t3 garrett gtx3576r with a .63 ar hot side.
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Default 08-12-2015, 03:16 AM

If you're only after 600whp and are concerned with spool you might as well stick with twins (hybrid RB's, VTT's or Pure) + inlets.


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Last edited by Element; 08-12-2015 at 03:34 AM..
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boost junkie boost junkie is offline
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Default 08-12-2015, 05:38 AM

Quote:
Originally Posted by Element
If you're only after 600whp and are concerned with spool you might as well stick with twins (hybrid RB's, VTT's or Pure) + inlets.
For a lot less $ too.
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Acetech Acetech is offline
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Default 08-12-2015, 05:45 AM

All good things to consider.
Pros of the single are lower octain requirement and more reliable turbo, negative are cost 1-2 thousand more and there is not a lot of info about people that have done a smaller single and how it performs.
The pros of twins are, you know how they perform and they are a bit cheaper, cons, octane requirement, rediculase wait time for them to be made (my biggest complaint), reliability 20000 miles if your lucky.
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Default 08-12-2015, 10:16 AM

If your auto,Single turbo has lower torque then twins which would be better on your trans.


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csu87 csu87 is offline
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Default 08-12-2015, 11:12 AM

just find a small turbo and slap it on. think GTX30xx and lower sized turbos
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Acetech Acetech is offline
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Default 08-12-2015, 11:43 AM

If the Steedspeed mani is finished anytime soon I just may
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Default 08-12-2015, 12:27 PM

The MOTIV 750 kit spools nicely and is worth a look. Alternatively most of the 5858 kits spool OK. A VM 5862 would be nice too. But if 600whp is all you want the OEM twins are probably a wiser choice.


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Default 08-12-2015, 06:43 PM

Quote:
Originally Posted by csu87
just find a small turbo and slap it on. think GTX30xx and lower sized turbos
A GT30R (or any GTX30) makes around the same power as stock turbos with inlets. IMO, you need something bigger to justify all of the hassle and expense of going single.


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Default 08-13-2015, 06:16 AM

You know how ridiculously spoiled we sound saying "only 600whp". I just think back to the old days with my LS1 and what we had to do just to get to 450.


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Default 08-16-2015, 09:23 AM

I run a 5858 and push about 530~ to the ground. I'm happy with it. The pros are reliability over stock turbos. I've had zero issues outside my own screw ups on installing/tuning. I spool around 3200 rpms. I dont post a lot about my car because of there is not much to say lol. I am fabricating a new intake for the turbo and a new engine cover for bling factor. A meth kit, oil cooler (hell yeah I am still running no oil cooler) and other odd stuff. Oh my cup holder stopped popping out of the dash. I'm still trying to figure out how to fix that...


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Acetech Acetech is offline
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Default 08-16-2015, 02:55 PM

Nice, what PSI do you run to get 530 wheel and is it maxed out?

I found a thread about CES motorsport running a gtx35R on a E36 with a TS steedspeed mani with very good spool and 700 wheel at 26 psi

http://www.bimmerforums.com/forum/sh...t-GTX35R/page3
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Default 08-16-2015, 04:11 PM

Quote:
Originally Posted by Acetech
Nice, what PSI do you run to get 530 wheel and is it maxed out?

I found a thread about CES motorsport running a gtx35R on a E36 with a TS steedspeed mani with very good spool and 700 wheel at 26 psi

http://www.bimmerforums.com/forum/sh...t-GTX35R/page3
That car has headwork and cams. Probably not the best comparison.


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Default 08-17-2015, 06:42 AM

They are not apples to apples but they are very close in design and displacement, plus I would think cams and head work would improve top end not spool. And the N54 higher CR and dual vanos and direct injection would all be benifical to some degree for spool and width of power band compaired to the M52.
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Default 08-17-2015, 03:25 PM

Quote:
Originally Posted by Terry @ BMS
The MOTIV 750 kit spools nicely and is worth a look. Alternatively most of the 5858 kits spool OK. A VM 5862 would be nice too. But if 600whp is all you want the OEM twins are probably a wiser choice.
Terry there is 600whp car with oem twins? Even rbs are not able to produce such power and keep working, am i wrong?


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Default 10-14-2015, 04:26 AM

Quote:
Originally Posted by Riceball777
The best 600whp turbo is a t3 garrett gtx3576r with a .63 ar hot side.
Has anyone made 600whp with the GTX3576R on the N54?
I can't seem to find much/any information on it.
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Default 10-14-2015, 09:59 AM

Quote:
Originally Posted by Riceball777
The best 600whp turbo is a t3 garrett gtx3576r with a .63 ar hot side.
A T3 would be a horrible idea for this car.
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Default 10-14-2015, 10:14 AM

Quote:
Originally Posted by Taron
Terry there is 600whp car with oem twins? Even rbs are not able to produce such power and keep working, am i wrong?
OEM twins that have been modified. e.g. PURE, RB, Vargas, etc.


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Default 10-14-2015, 10:17 AM

Quote:
Originally Posted by boost junkie
For a lot less $ too.
can you explain why this is? you'd think two turbos are more expensive than one, you're still replacing manifold etc so no difference there... just the custom work to convert to single makes it more? what am I not getting... do turbos become exponentially more expensive as they get bigger?
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Default 10-14-2015, 10:42 AM

Quote:
Originally Posted by Vertigo
You know how ridiculously spoiled we sound saying "only 600whp". I just think back to the old days with my LS1 and what we had to do just to get to 450.
LS1s still put in work... Slap a turbo on it for a few grand and its pushing more than my car. No replacement for displacement.


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