10 psi safe???!!
- Thread starter EVILSRT
- Start date
MemphisRacer
Member
should be fine man, im sure your bound to hit fuel cut every now and then which will feel like hitting a brick wall!! but no worries, enjoy it!!!
MemphisRacer
Member
well, look at it this way, you're never going to be able to say you're 100% safe, but lets call it 99%. you always gotta be mindfull of that 1% and not get carried away. (thumb)
MazdaDryvr
Member
I'm going to limit mine at 9psi to be extra safe 
Maestrokneer
Member
- :
- 2003 Mazdaspeed Protege
I have a question about boosting my MSP, seeing as how I also just got my Joe MBC.
The general consensus is that 9-10 psi is "safe". But what about long-term effects on the life of the engine? How much increased wear and tear does this create? And how much stress am I putting on my engine in the long run. Is this reducing the life of my car?
That's what I'm concerned about, so if anyone has any answers, feel free to post them here. Thanks.
The general consensus is that 9-10 psi is "safe". But what about long-term effects on the life of the engine? How much increased wear and tear does this create? And how much stress am I putting on my engine in the long run. Is this reducing the life of my car?
That's what I'm concerned about, so if anyone has any answers, feel free to post them here. Thanks.
- :
- 2002 BJFW, 2007 BK3P, 1979 SA22C, 2005 BK3P
Look at it this way - there are specific reasons why Mazda and Calloway set the boost at the level that they did. Is it possible that tampering with that will reduce the life of your engine? Sure it is. The fact is this; no one has YET blown an engine through higher boost, but also remember that no one has had the car long enough to truly determine what, if any, long term effects there may be. Check back six months to a year from now.
I personally feel that 10 psi on the MSP's setup is too much. Get an EGT gauge and/or an Air to Fuel Ratio gauge and monitor how rich/lean you run on fuel as well as temperature. Keep those ranges within acceptable limits and you'll be fine. It takes work, but that's why its called "tuning"
The higher psi you boost, the more air you force into your engine. You need the fuel to compensate, something that the ECU on all three variants of Protege does not do well at all. As stated above, the MSP has even been setup with a fuel cut (safety measure I imagine). What Flyin' Protege suggests for running higher than normal boost is an inline fuel pump. That along with their 02 signal modifier is enough to safely turn up the boost on my kit. $300
I've blown an engine, and let me tell you that it is no fun. Just be careful and tune smartly and you will probably have no problems.
Oh and one final thing - alot of people have posted in rather naive fashion that if the SRT 4 can have its boost turned up with an MBC right from the box, then goshdarn so can the MSP! Wrong. The SRT 4 has forged internals among other things, much much tougher than your average Joe Neon. The MSP has a Protege engine with a turbo. Mazda has stated in their racing materials that they believe the engine can safely handle 220 horsepower at the crank. Look at the SpeedVision series Proteges - they replace an engine every four races. Something to think about.
I personally feel that 10 psi on the MSP's setup is too much. Get an EGT gauge and/or an Air to Fuel Ratio gauge and monitor how rich/lean you run on fuel as well as temperature. Keep those ranges within acceptable limits and you'll be fine. It takes work, but that's why its called "tuning"
The higher psi you boost, the more air you force into your engine. You need the fuel to compensate, something that the ECU on all three variants of Protege does not do well at all. As stated above, the MSP has even been setup with a fuel cut (safety measure I imagine). What Flyin' Protege suggests for running higher than normal boost is an inline fuel pump. That along with their 02 signal modifier is enough to safely turn up the boost on my kit. $300
I've blown an engine, and let me tell you that it is no fun. Just be careful and tune smartly and you will probably have no problems.
Oh and one final thing - alot of people have posted in rather naive fashion that if the SRT 4 can have its boost turned up with an MBC right from the box, then goshdarn so can the MSP! Wrong. The SRT 4 has forged internals among other things, much much tougher than your average Joe Neon. The MSP has a Protege engine with a turbo. Mazda has stated in their racing materials that they believe the engine can safely handle 220 horsepower at the crank. Look at the SpeedVision series Proteges - they replace an engine every four races. Something to think about.
Last edited:
MazdaDryvr
Member
ok, now you're freakin me out. Joe said he's run his car all over the place and monitored the fuel ratio while testing. He's put over 8,000 miles on already and said he beleives that the MSP still runs rich enough to be safe.
Don't forget- MAzda and callaway also have to consider the morons who put 87 octane in the car even though it says not to and the occassional bad tank of gas with the mindless drone driving the car never hearing detoantion or not even knowing what it is if they did hear itCaptain KRM P5 said:Look at it this way - there are specific reasons why Mazda and Calloway set the boost at the level that they did. Is it possible that tampering with that will reduce the life of your engine? Sure it is. The fact is this; no one has YET blown an engine through higher boost, but also remember that no one has had the car long enough to truly determine what, if any, long term effects there may be. Check back six months to a year from now.
I personally feel that 10 psi on the MSP's setup is too much. Get an EGT gauge and/or an Air to Fuel Ratio gauge and monitor how rich/lean you run on fuel as well as temperature. Keep those ranges within acceptable limits and you'll be fine. It takes work, but that's why its called "tuning"
The higher psi you boost, the more air you force into your engine. You need the fuel to compensate, something that the ECU on all three variants of Protege does not do well at all. As stated above, the MSP has even been setup with a fuel cut (safety measure I imagine). What Flyin' Protege suggests for running higher than normal boost is an inline fuel pump. That along with their 02 signal modifier is enough to safely turn up the boost on my kit. $300
I've blown an engine, and let me tell you that it is no fun. Just be careful and tune smartly and you will probably have no problems.
Oh and one final thing - alot of people have posted in rather naive fashion that if the SRT 4 can have its boost turned up with an MBC right from the box, then goshdarn so can the MSP! Wrong. The SRT 4 has forged internals among other things, much much tougher than your average Joe Neon. The MSP has a Protege engine with a turbo. Mazda has stated in their racing materials that they believe the engine can safely handle 220 horsepower at the crank. Look at the SpeedVision series Proteges - they replace an engine every four races. Something to think about.
. The car has more than enough fuel for 10 psi, hell, I have run 14 without going lean. The stuff that these guys are doing is tested by others who know how to tune and passed down to them with a "this is the limit, so you are safe here" message .. The MSP also doesn't start to detonate until 11-12 psi with stock fuel, timing, plugs, etc. As for 220 at the crank, my snowmobile can handle more than that .. That is a VERY conservative number. I know quite a few people with MSP's and P5's putting in excess of 240 to the wheels with no issues whatsoever. Some have been together for over 50K miles already.. I agree, it is all in the tuning.. That is why there are those of us that tune and push the thing and then those who just go to the safe limit of stock tuning.Joe
damn.....after reading captins post.....I dont feel safe at all now.
I hear all this hype about the MBC and now that I get mine on I am very nervous. But let me ask this question..if you drive like a decent human....shifting at 4 etc....then you should have no worries because you only really start to stress the motor at the higher RPMs..right?
I hear all this hype about the MBC and now that I get mine on I am very nervous. But let me ask this question..if you drive like a decent human....shifting at 4 etc....then you should have no worries because you only really start to stress the motor at the higher RPMs..right?
boostisgood
Member
- :
- 1988 FC3S TII
AZSpeed, If it was any other car, then I would up my fuel pressure. I got an A/F gauge, and it is always pegged at rich, unless im at idle. There should be no issues boosting to 10 PSI. I am, and have no issues as of yet, and I drve hard every day. 
TURBO3WAGON
Member
Praise the boosted!
(scratch) Im next, Im tired of pussy footing around!
(second) (hump) place!
(scratch) Im next, Im tired of pussy footing around!
(second) (hump) place!
Maestrokneer
Member
- :
- 2003 Mazdaspeed Protege
bcbadboy said:
Umm....that's great badboy.....but 4356 is about what? 4-5 months worth of driving? Let's see where your car is in 5 years.
At any rate, I know the risk of boosting increases wear on your motor, I just wanted to see if anyone had any technical data on that. That way I can be picking up "my hoes" in five years and going strong.
A
AGR
heeeee heeeee
pussy foot!!!!!!! (rofl)
TURBO3WAGON said:
pussy foot!!!!!!! (rofl)
