TFD

Since it is hard to find any decent information about the real performance of Precision turbo's I had the idea to start this thread as an information libary for these turbo's (same as the famous GT2871R thread...)

What info do you want?

Well, most people like to know spoolup and power so lets post your precision setup here.

- PTE turbo? (from the old sc61 or so to the new billet stuff..)
- A/R, BB etc.
- Engine (displacement)?
- full boost rpm?
- Power? @ what boost?
- Dynosheet?
- Other stuff that makes the turbo spin faster/slower?

Well, you get the picture. Please, no discussions on whats better or not... just reallife experience.

Grtz,
Daniel

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JDMstyle-Driftstyle-Dish-Stickerbomb-Stretch-Bye Bye Kitty...

Yellow4g63

- PTE turbo SC61 .63 exhaust housing with stage 5 wheel.

- Engine RB20

- full boost rpm 5200ish I would say

- Power? 354whp @ 15psi 398whp @ 17psi

- Dynosheet

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95 240sx RB20 415whp
91 Nx2000 VVL yo

trickey1991

Precision FTW! 3231E

251whp RB20 at 11.5PSI , looking to make 350whp at 18lbs this spring!
• 55mm inducer compressor wheel
• "E" compressor cover 3.0" inlet/2.0" outlet
• T31, 76 trim turbine wheel
• Turbine housing options:
- T3 .48 or .63 A/R with 4 bolt discharge
- T3 .48 or .63 A/R with 5 bolt discharge (with or without wastegate hole)
• 360° journal bearing system

rbs14kouki

My friend did 373 @ 18psi (on mustang dyno) full boost around 4500

Sr20det
Billet 5557 ar.64
264 cam
Greddy intake
Other bolt on parts



And im building a ka24det for my friend i chose the same turbo for the built

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AV FABRICATION

Built thread sr20vet s14
http://zilvia.net/f/showthread.php?t=535574

STR8E180

think u might be interested in this thread if your interested in Precision turbos
POWERTUNE Red Dragon - Hardtuned.net

jimefam

I should be dyno'ing my rb25 in a month or so I'll post up the results for my pte 7685.

R33E8

I should have my 6766 on the dyno soon. It's currently a ceramic ball bearing T3 .82 AR with 3" vband outlet and going onto a KA-T.. I think I might change to a .68 exhaust housing.. I planning on running 25-30psi on 93 with meth injection.. Daily driven.. Here it is next to my 35r in my dirty ass engine bay (not for long )



You might want people to specify their fuel type too..

I'll add my dynosheet to this post..

TFD

This going well guys, thanx.

@ Dtr8180: great link. I'll copy the results for a quick reference:

Stock S14 SR20DET
264 BC cams
Precision 5557S journal bearing
Precision 3" V-band kit
Tial MVS Watercooled 38mm wastegate
Powertune high mount exhaust manifold

297 wKw @ 20 psi (403 whp) E85
379 wKw @ 30 psi (515 whp) E85
392 wKw @ 33 psi (533 whp) E85 (ARP Headstuds, BC S & R added)

20psi with full boost @ 4100rpm

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JDMstyle-Driftstyle-Dish-Stickerbomb-Stretch-Bye Bye Kitty...

STR8E180

^ that car has now upgraded to a 6262 .63 exhaust housing

Now packing a 2.2L Brian Crower stroker kit and Precision 6262SP turbo, it has been tuned to a thumping 427kW at the wheels at 35psi on E85 before the 1450cc injectors were at 99% duty cycle.

STR8E180

my sr20vet is running a 6262 as well

STR8E180

another one of powertune ausrtalia's cars

6265 twin scroll
powertune twin scroll manifold
twin Tial MVS 38mm gates

Stevos S15 Precision 6265 AKA wild Banana - YouTube

Z350MAN

Built Bottom s13 blacktop SR20DET
supertech valve train 264 HKS S2 cams
Precision 5557S journal bearing billet wheel
Precision 3" V-band kit
Custom fab'd exhaust manifold

@ 20 psi 412whp 93
should be finished up with my Methanol injection kit tomorrow will be tuning for 26ish psi on 93 #'s soon

20psi with full boost @ 4200rpm

AdrenalineS14

anybody running a 2871 or 3071 equilvalent? say the billet 5130??? i wanna know what people are pushing with that turbo?

Flicktitty

Just bumping this back up, Anyone on here running a 5858 on a KA?

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2JZ-GTE Swapped S13 Coupe - 1994 Supra Turbo

waxball88

Currently looking to get my 6152 rebuilt. KA-T
Will be keeping an eye on this thread!

beems240sx

Precision 5558 with a .63 ar vband. i wanted response

Trinidrift3

anyone have a suggested turbo for a redtop sr20det with:
3in catback
greddy fmic
apexi power fc
z32 maf
walbro 255
blitz dd
manual boost controller

the turbo seals on my stock t25 are going so i am looking to upgrade but im not looking to pay a garret as i do not have that amount of money. precision seems to be a good option

looking for mid range to top end power (3500-7500 rpms)
also will most likely add tomei 254 poncams soon
thanks

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jamg

bumping this

STR8E180

SR22DET
BC 272 intake and exhaust cams
precision 6262 with .63 exhaust housing
powertune exhaust manifold
tial mvs external gate
4inch exhaust system
2000cc injectors
powertune twin intank pump kit

sqd

Not my car, but I have the exact same setup to be assembled this winter. I even have his exact head he used on this car.

E85
Precision SC5857 .63 a/r
Forged bottom end
Headwork (ported/polished, cnc'd etc)
Tomei Procam 260s
1680cc injectors
Custom intake & exhaust manifold
Twin in-tank 340lph pumps
Haltech PS1000
Audi 115R coils



So I'm expecting to land somewhere around there too

[email protected]

- PTE turbo? 6266
- A/R, BB etc. .63 ar BB
- Engine (displacement)? 2.0L .20 oversized stock sleeves stock head only cams
- full boost rpm? idk too busy driving lol
- Power? @ what boost? 398whp 360ft lbs @ 22psi off the trailer, 595whp 424ft lbs @33psi spike 30psi at redline
- Dynosheet?

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MunkyW3rkz Racing

Mike Mic

so I just picked up a 6262 for my sr20 can anybody tell me when it will start getting into boost? I'm thinking about trading it for a gt3076r. any info will help. I've searched and I cant really find anyone running a 6262 on a sr. most people have the ve head or a 2.2. I have forged block with stage 1 custom cams I had made, compression is 9:1 je pistons with eagle rods. I have a high mount set up. im only going to be running about 18psi any idea of when I will hit full boost?

ForeignMuscle

I'm going 5858. Forged block. 272's.

Anyone making over 400whp on pump with this turbo?

rbs14kouki

I just bought a s14 , pt 4828 on a sr20det , Never drove it yet cause the bottom end is knocking !

Does anyone know how much a set-up like that do ? I think i should be around 350whp

__________________
AV FABRICATION

Built thread sr20vet s14
http://zilvia.net/f/showthread.php?t=535574

ForeignMuscle

Bump it up. I'm about to have my setup ready. Looking for 475hp at around 20psi on 93.

I know there has to be more Precision users out there. Post it up!

boost addict

Looking at everyone torque numbers in here it seems theyre kinda low to me in relation to the whp. Ive got a 5558(t3, .62ar, 38mm wg) on my sr and made 420/280 at 17psi and my last setup was a 3071r(t2, .82ar, interally gated) and made 430/365 at 22psi. Any one know whats up with such the big drop?

EnemyS15

I have this precision turbo I am trying to sell.. I don't have the serial number or plate for it.

It's .60 cold
.63
T3
5 bolt exhaust housing
external wastegate
Oil cooled only


i know it's a long shot, but any help is appreciated

ForeignMuscle

Take the housings off and measure the inducer and exducer of each wheel with calipers. Problem solved.

EnemyS15

Assuming your reply is directed to my post, could you elaborate a bit more on this?! I would like to learn as I proceed with your suggestion, but your reply is vague atm.

ForeignMuscle

Using Vernier calipers, measure the small side and large side of both turbo wheels. You should be able to do a Google search to find your model using the measurements.