how much boost can the bpt handle stock?
Protege Newbie
Joined: Apr 2003
Posts: 24
From: Right of Center
I think it was Ric, from Racing Mazda got 399whp out of a stock-bottom-end BP with one of his turbo systems.
I see people w/ the pre-99 BPs running 12-15psi quite often - WITH proper Fuel, Spark, and Timing control.
I see people w/ the pre-99 BPs running 12-15psi quite often - WITH proper Fuel, Spark, and Timing control.
Registered User
Joined: Apr 2002
Posts: 172
From: Christchurch, New Zealand
almost everyone i talk to here (in NZ) with a gtx has or is running as much boost as they can before they get boost cut.
that tends to be 13-15psi. not so good for the turbo i know, but it seems to be fine for the car.
of course i don't know how many of those still have an engine but from the sheer amount of people doing it, i'd say it was okay.
that tends to be 13-15psi. not so good for the turbo i know, but it seems to be fine for the car.
of course i don't know how many of those still have an engine but from the sheer amount of people doing it, i'd say it was okay.
The beige beast!
Joined: Sep 2002
Posts: 300
From: Mt. Pleasant, NC
Originally posted by midnightblue97
I asked this same question a while ago. I never actually got a boost number, but thats what Jesse told me, 399 WHP
So thats what maybe 420-430 Flywheel??
I asked this same question a while ago. I never actually got a boost number, but thats what Jesse told me, 399 WHP
So thats what maybe 420-430 Flywheel??
http://members.attcanada.ca/~dragon64/dave.html That's a lot of inspiration for me. I need a GTR turbo 
Protege Enthusiast
Joined: Dec 2001
Posts: 170
From: nj
Originally posted by funkdaddysmack
The big question I have is what is going to be running the engine? If it's the pro LX ECU, I wouldn't run more than 10psi. If it's the GTX ECU, you can go higher yet. Braden got those high hp #s with a haltech full engine management... It's all about tuning.
Good engine + shitty tuning = you're screwed
Good engine + good tuning = lotsa power, reliability
The big question I have is what is going to be running the engine? If it's the pro LX ECU, I wouldn't run more than 10psi. If it's the GTX ECU, you can go higher yet. Braden got those high hp #s with a haltech full engine management... It's all about tuning.
Good engine + shitty tuning = you're screwed
Good engine + good tuning = lotsa power, reliability
Salt addict
Joined: Aug 2002
Posts: 1,201
From: Niagara Falls Ont.
Originally posted by sweetprotege93
Looks like he's running 480+ at the wheels now! http://members.attcanada.ca/~dragon64/dave.html That's a lot of inspiration for me. I need a GTR turbo
Looks like he's running 480+ at the wheels now!
http://members.attcanada.ca/~dragon64/dave.html That's a lot of inspiration for me. I need a GTR turbo
Sorry if its already mentioned on that site, I don't have time to read it, my computers fucked
The beige beast!
Joined: Sep 2002
Posts: 300
From: Mt. Pleasant, NC
Originally posted by midnightblue97
Stock internals??
Sorry if its already mentioned on that site, I don't have time to read it, my computers fucked
Stock internals??
Sorry if its already mentioned on that site, I don't have time to read it, my computers fucked
Registered User
Joined: Nov 2002
Posts: 102
Originally posted by sweetprotege93
Looks like he's running 480+ at the wheels now! http://members.attcanada.ca/~dragon64/dave.html That's a lot of inspiration for me. I need a GTR turbo
Looks like he's running 480+ at the wheels now!
http://members.attcanada.ca/~dragon64/dave.html That's a lot of inspiration for me. I need a GTR turbo
Boosted 2nd Gen
Joined: Jul 2002
Posts: 225
From: Portland, Oregon
when i dyno'ed my car before at 8 psi, i was getting 163 hp to the wheels and 184 ft/lb torque.
finally got everything working nearly perfect, boost and all. how much to the wheels would i be getting at 15 psi?
finally got everything working nearly perfect, boost and all. how much to the wheels would i be getting at 15 psi?
Goodbye everyone
Joined: Oct 2001
Posts: 383
Originally posted by itzkcatz
R u sure he had a GTR turbo that seems really high for one.
R u sure he had a GTR turbo that seems really high for one.
14.3 @ 98mph stock tires
Joined: May 2003
Posts: 356
From: Sarasota, FL
Originally posted by pin0yi30y
when i dyno'ed my car before at 8 psi, i was getting 163 hp to the wheels and 184 ft/lb torque.
finally got everything working nearly perfect, boost and all. how much to the wheels would i be getting at 15 psi?
when i dyno'ed my car before at 8 psi, i was getting 163 hp to the wheels and 184 ft/lb torque.
finally got everything working nearly perfect, boost and all. how much to the wheels would i be getting at 15 psi?
Registered User
Joined: Jun 2002
Posts: 2,130
Originally posted by turboge
The turbo on his car was a Warner/Ishi custom GIANT turbo that was bolted to a GT-R manifold. Adam was going to put it on his EGT until he found a full GT-R turbo and he sold the hybrid from Dave's mx-3.
The turbo on his car was a Warner/Ishi custom GIANT turbo that was bolted to a GT-R manifold. Adam was going to put it on his EGT until he found a full GT-R turbo and he sold the hybrid from Dave's mx-3.
Thats what i thought :-) ..Jon
Protege Enthusiast
Joined: Dec 2003
Posts: 52
From: Puerto Rico
Re: how much boost can the bpt handle stock?
Originally posted by jedwards242000
I've heard differant things, like 12lbs of boost 8lbs and so on. But i would drive the car every day and i would want it to run safely i get on the car every once in a while maybe once a day or so but how much boost should i run on a stock bpt and about how much hp would that give me thanx for the info
I've heard differant things, like 12lbs of boost 8lbs and so on. But i would drive the car every day and i would want it to run safely i get on the car every once in a while maybe once a day or so but how much boost should i run on a stock bpt and about how much hp would that give me thanx for the info
I have a protege with a stock kia engine 9.8 to 1 in compression running up to 18psi of boost with the BPO9 ecu from the lx protege Rx7 550cc injectors and flowmeter, and have no problem I use the car daily to go to work. Remember you are not always running on boost that all depends on your hammer foot.
