![Smile :)](./images/smilies/icon_smile.gif)
VJ-14 max psi
- TEAMpK
- Regular Member
- Posts: 341
- Joined: August 16th, 2003, 2:01 am
- Location: ZOOM-pssst-ZOOM NE
- Contact:
VJ-14 max psi
I was wondering what the max psi anyone has turned their VJ-14 to without it being ported or clipped. Thanks
. Should have my car running in 2 weeks.
![Smile :)](./images/smilies/icon_smile.gif)
- Josh
- Supporting Member
- Posts: 3432
- Joined: April 18th, 2002, 2:01 am
- Location: Washington state
- Contact:
i ran mine at 16psi, but at that point i maxed out the MAF.
Josh
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216
- Josh
- Supporting Member
- Posts: 3432
- Joined: April 18th, 2002, 2:01 am
- Location: Washington state
- Contact:
that sux, i do have a Vj 16 turbine, but hopefully it wont break, i haven’t heard of that happening before. i only have like 4K miles on the internals. had it rebuilt with all new internals. but after i paid for it realized it wasn’t much more for a T3/T4E. that’s what i get. i only ran it at 16psi cause thats as high as it would go without cutting out. Crazy Fast at 16. but not going to run it their again till i get the stand alone.
Josh
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216
-
- Regular Member
- Posts: 44
- Joined: April 10th, 2003, 2:01 am
- Location: New Jersey
-
- Regular Member
- Posts: 629
- Joined: November 21st, 2002, 2:01 am
- Location: Weyers Cave, VA
- Contact:
Porting it isn't going to prent it from breaking. Once your running over 16psi the turbo is just spinning to fast for the bearings to handle. If you were running elevated oil pressures then you may get away with 18-20psi for a little while but then your problem becomes compressor efficency. It's just simple to small and at 18-20psi your compressor out let temps would shoot to over 450*F. For more than 16psi you really need to upgrade to a larger turbo w/ a cooler compressor outlet charge. That will allow you to run more timing advance per pound of boost and make a he!! of a LOT more HP at the same boost level.
http://www.cardomain.com/ride/354836
B6T, APEXi Silvia IC, HKS SSQV, Magnacore KV85 Wires, NGK V-Power, Haltech E6K, Accel 300+ Digital Ign w/ coil, Accel 375+ controller, JWMmotorsports turbo manifold & exhaust, custom Garret GT-R series turbo, MAZDASPEED mounts, SRD Bushings, Pacesetter Short Shift, entire Pro LX drive train w/ custom ACT clutch (I'm the first to succeed this on B6T), Weapon-R, and lots more stuff!
B6T, APEXi Silvia IC, HKS SSQV, Magnacore KV85 Wires, NGK V-Power, Haltech E6K, Accel 300+ Digital Ign w/ coil, Accel 375+ controller, JWMmotorsports turbo manifold & exhaust, custom Garret GT-R series turbo, MAZDASPEED mounts, SRD Bushings, Pacesetter Short Shift, entire Pro LX drive train w/ custom ACT clutch (I'm the first to succeed this on B6T), Weapon-R, and lots more stuff!
Yeah, those Vj turbo shafts suck. Theyre too small.
I had a stock IHI RHB5 VJ11 in my 88 MX6 GT and up here at high altitude, if I tried pushing over about 10-12 psi, the shaft would snap in half. I must have done this to 5+ stock VJ11's.
I had a stock IHI RHB5 VJ11 in my 88 MX6 GT and up here at high altitude, if I tried pushing over about 10-12 psi, the shaft would snap in half. I must have done this to 5+ stock VJ11's.
94 Mazda MX3 GS - 395 whp 397 ft lbs untuned on pump gas and stock KLDE 15 psi boost. now running 16 psi and E85.. numbers=? 425ish whp
04 GSXR 600- full exh, power commander 3, int turn signals, etc
98 Ford Ranger 3.0L
01 YZ250- most fun vehicle Ive ever owned.
95 Eclipse- built 420a, 60-1, megasquirt, 371 whp @ 17 psi, dsm-broken-car-curse
04 GSXR 600- full exh, power commander 3, int turn signals, etc
98 Ford Ranger 3.0L
01 YZ250- most fun vehicle Ive ever owned.
95 Eclipse- built 420a, 60-1, megasquirt, 371 whp @ 17 psi, dsm-broken-car-curse
- Josh
- Supporting Member
- Posts: 3432
- Joined: April 18th, 2002, 2:01 am
- Location: Washington state
- Contact:
i have a 2 1/4" down pipe with 2 1/4" exaust all the way back. no cat. its all free flowing. i only ran 16 for a short while, to see what it would do. 14 is really the max for the VJ14. sooner or later i will get a T3/T04E 60 trim. should do nicely
Josh
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216
95' AWD MX-3 RST - (work log - http://www.mx-3.com/phpBB3/viewtopic.php?f=46&t=73765 )
94' GS - KLZE DD (work log - viewtopic.php?uid=2713&f=46&t=79063&start=0 )
05' MS RX-8 - Parted out and Sold :'(
Feedback - http://www.mx-3.com/phpBB3/viewtopic.php?f=37&t=49519
Cardomain Page - http://www.cardomain.com/ride/408020
Face Book page http://www.facebook.com/pages/Mazda-MX- ... 3472959216