Single Turbo RX-7's Questions about all aspects of single turbo setups.

i got my holset hx52

Old Apr 27, 2009 | 06:41 PM
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i got my holset hx52

well it finally got here, holset hx52, going on my 1990 turbo with a mild street port, 1600cc injectors in all 4 corners, e85 fuel, haltech e6k, hks cast manifold, 44mm wastegate, hks exhaust, not sure what size intercooler piping i want to use yet. hoping for some good numbers from this piece, cant go to big because the motor wasnt doweled when we rebuilt it. i will post pics when the car comes apart and then after tearbo has his way with it.






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Old Apr 27, 2009 | 07:28 PM
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Is that T4 flanged? And if ya dont mind me askin, how much that run ya?
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Old Apr 27, 2009 | 07:56 PM
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this is gonna be fun !!!!
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Old Apr 27, 2009 | 08:16 PM
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you have to modify the bolt holes but it will work with a t4 flange, i got it for 500, the comp wheel is 67mm, the exhaust wheel is 70mm, and the housing is a 16cm^2.
Originally Posted by tearbo2
this is gonna be fun !!!!
your damn right it is, the suspense is killing me.
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Old May 1, 2009 | 12:04 AM
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So you put this thing on yet? Mine is running now just tring to tune it and also getting another muffler the HBP is soo soo LOUD. I love it but neighbors dont. Im running 3" intercooler piping. Is your motor rebuilt? Did you stay with a S5 engine? How mush boost are going to be running?
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Old May 1, 2009 | 09:14 PM
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no s5 motor, i had already street ported and rebuilt a s4 so i just dropped it in, i wish mine was bridgeport, as far as boost goes, i will go as much as i can until i feel that the motor is going to take it. probably around 420 or so horse power.
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Old May 1, 2009 | 09:28 PM
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Nice turbo! I'll be getting an H1E with 22cm housing. I'll be using a Shook Motorsports manifold and DP so spool won't be too bad.

Good luck with your setup!

Reese
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Old May 2, 2009 | 10:23 AM
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thanks man, good luck on yours.
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Old May 16, 2009 | 08:43 PM
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its on and it sounds so awesome.


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Old May 17, 2009 | 12:42 AM
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looking good - how is the passenger side brake line?
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Old May 18, 2009 | 07:23 AM
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its fine
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Old May 19, 2009 | 01:31 PM
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Holset has their new HSS-Pro70. Its a T4 flanged unit with HSS-70mm wheel and 82mm turbine wheel. Sucker rocked on a 2JZ a local fellow built. Came on boost early and made some big numbers.
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Old May 19, 2009 | 11:23 PM
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where was it when i was shopping
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Old May 20, 2009 | 12:32 PM
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That is always the case. Holset now has their new HSS (Holset Super Series) line of units slowly releasing.
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Old May 23, 2009 | 10:47 PM
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Old May 23, 2009 | 11:58 PM
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This is on 14.6psi?
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Old May 24, 2009 | 02:20 AM
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yep, a 1 bar spring
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Old Jun 23, 2009 | 05:00 PM
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Looking good what oil pressure are you running before turbo and what size restrictor into the turbo? How does it pull? I just drove mine for the first time today just got it where i can go around the street and start playing I still have lots of tuning to do. Looking good though.
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Old Jun 29, 2009 | 10:40 PM
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i just used the stock oil line, hacked it in the middle and had my friends at a hydraulic shop join the two pieces at the length i needed. no restrictor, just the stock oil line size.
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Old Jul 1, 2009 | 12:11 AM
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What was the torque? Also what did it put down peak hp and torque? Looks good! Is that on the stock manifold? Thanks
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Old Jul 14, 2009 | 04:15 PM
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when are you seeing full boost by on this turbo?
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Old Aug 6, 2009 | 10:33 AM
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its laggy, im trying to find a way to get this thig spooled up faster. im seeing 14.6 psi around 5500 and i really want it a lot sooner.
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Old Aug 6, 2009 | 11:50 AM
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thats a pretty decent sized turbo, how does the size compare to say a t04r or gt35?
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Old Aug 7, 2009 | 01:25 PM
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im not sure, ive never had either of those turbos.
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Old Aug 7, 2009 | 05:15 PM
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That is really laggy for a 67mm wheel.

Are you sure you don't have any exhaust leaks before the turbo or any boost leaks?

Have you checked compression on the engine?
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