View Full Version : Turn the boost up?
vxfilmer1000
06-12-2005, 06:54 PM
With these mods : Injen CAI , Custom FMIC , and Apexi N1 full exhaust. Do you guys think it would be safe to turn the boost up to 9 or 10. I am not sure what my stock boost is, but what are your guys though of turning the boost up to 9or10 with those mods? Is is SAFE or NOT?
mp3moose
06-12-2005, 06:58 PM
yes. it is safe.
sickspeed94
06-12-2005, 07:18 PM
i hate to be the one to say it but.... "SEARCH"
here's cliff notes to the search you're going to do.
YES!
NO!
stock internals have been known to hold upto 12 psi daily driven in one or two cases
stock internals have been known to blow at stock boost in one or two cases.
most turn up to 9 or 10 psi with no problems,
.................................................. ............
YOU HAVE TO PAY TO PLAY
mp5jeff
06-12-2005, 07:20 PM
put it to 8 and be happy to have a car to drive around for a while...
Brian MP5T
06-12-2005, 07:23 PM
With these mods : Injen CAI , Custom FMIC , and Apexi N1 full exhaust. Do you guys think it would be safe to turn the boost up to 9 or 10. I am not sure what my stock boost is, but what are your guys though of turning the boost up to 9or10 with those mods? Is is SAFE or NOT?
You decide, I say NO
http://www.msprotege.com/members/Brian%20MP5T/Boom%206.jpg
sickspeed94
06-12-2005, 07:26 PM
You decide, I say NO
http://www.msprotege.com/members/Brian%20MP5T/Boom%206.jpg
very powerful piece of info to have... any story behind it? i'd like to know.
sickspeed94
06-12-2005, 07:30 PM
sorry to double post but, here's what i would do in your situation (actually it's what i AM doing)
instead of buying a MBC for $70 and setting it to 10 PSi, send a PM to 505zoom and ask him about his accuboost dsbc (i just ordered one) it's a MBC with a bypass for stock boost and an in cabin switch for a higher boost setting (whatever setting you turn the knob to). i'll post details when mine comes in. it should be tomorrow or the next day so expect a writeup by me in the next week. and in case you're wondering the price altogether for mine was 175 shipped and well worth it IMO.
Aricjm15
06-12-2005, 07:31 PM
that was on a much larger turbo though
I could fart more air than a t25 at 10psi
but if you have a larger than stock turbo, dont go over 8psi UNLESS, you have forged internals and some kind of engine management, if you have forged internals and do not have timing controll do not go over 12
505zoom
06-12-2005, 07:38 PM
...stock internals have been known to hold upto 12 psi daily driven in one or two cases...
They have also been known to hold 22spike/20hold for 3 straight weekends until the turbo gave out. Discreetspeed was also running his at close to 20psi for quite some time. I've been pushing 250whp and higher for over 10k miles.... and it IS my daily driver.
It's all in how you drive it IMHO. I never boost below 2500RPM and I never boost in 5th gear. I also have it tuned very conservatively.
I'm not telling everyone to do it, but I think a lot of people don't give this motor nearly enough credit.
Oh and sickspeed I am sorry about that track number... I left 2 more messages today and Cliff STILL hasn't sent it. My last message was kinda harsh because it is starting to look bad on me, so I promise I will get it no later than tomorrow... should be just in time for your kit to get there, lol.
505zoom
06-12-2005, 07:42 PM
...I could fart more air than a t25 at 10psi
(lol)
but if you have a larger than stock turbo, dont go over 8psi UNLESS, you have forged internals and some kind of engine management, if you have forged internals and do not have timing controll do not go over 12
I run my 28RS at 12psi daily and have been up to 15psi with it... stock bottom end and head. If you tune the car safely and don't beat on it by boosting at low RPM or over-revving it, then it should hold fine.
mp5jeff
06-12-2005, 07:43 PM
that was on a much larger turbo though
I could fart more air than a t25 at 10psi
but if you have a larger than stock turbo, dont go over 8psi UNLESS, you have forged internals and some kind of engine management, if you have forged internals and do not have timing controll do not go over 12
actually, brian was utilizing a t-25 if im not mistaken, just running like 15psi? i forget...unless he upgraded turbo
jersey_emt
06-12-2005, 07:45 PM
(lol)
I run my 28RS at 12psi daily and have been up to 15psi with it... stock bottom end and head. If you tune the car safely and don't beat on it by boosting at low RPM or over-revving it, then it should hold fine.
*Should* being the key word here of course.
And for many people it *is* the way the car is driven.... I remember one time when someone posted a video of when their motor popped.....going WOT at low rpms in a high gear going up a hill. HMMMMM
Of course there are the unfortunate ones that just have a weak link in the chain, and have destroyed a rod at stock boost driving normally.
505zoom
06-12-2005, 07:48 PM
...And for many people it *is* the way the car is driven.... I remember one time when someone posted a video of when their motor popped.....going WOT at low rpms in a high gear going up a hill. HMMMMM...
(mswerd)
mp5jeff
06-12-2005, 07:50 PM
yea, depends on driver, and tuning, i drove mine at the track prety much every weekend, and raced on the streets during the week(shh), so my motor lasted alot longer then i woulda guessed, although it woulda lasted longer had i tuned it correctly, looked like a piston gave out from detonation to me.
BlkZoomZoom
06-12-2005, 07:51 PM
13psi on the stock setup....
http://www.msprotege.com/forum/attachment.php?attachmentid=36503
mp5jeff
06-12-2005, 07:52 PM
haha blk, i kind of want to look in my engine to see if any rods are bent, maybe ill do taht after i move to g-ville. i bet a few are.
BlkZoomZoom
06-12-2005, 07:55 PM
Obviously they faired better than this one...
http://www.msprotege.com/forum/attachment.php?attachmentid=36616
Or there wouldn't be any guessing, lol.
mp5jeff
06-12-2005, 07:56 PM
haha awesomness, make a necklace out of a broken rod...
BlkZoomZoom
06-12-2005, 07:57 PM
I have 4 Cp pistons to make necklaces of now. I think those are more impressive (or depressive). lol
mp5jeff
06-12-2005, 08:00 PM
know whats funny, when i got my cp pistons, i did make a necklace of one, but i havent broke one yet, so you are one step ahead.
MSP#735
06-12-2005, 08:01 PM
yea you are definately safe!! DO IT!!
vxfilmer1000
06-12-2005, 08:12 PM
I had a feeling some people were goin say do it do it. Then some were going to say dont do it look what happened to me. A guy i know can tune cars very well, so im going to get him to help me tune my car when i up the boost. So i will give some updated post later on when it do it. IF I DO IT?
BlkZoomZoom
06-12-2005, 08:14 PM
All the tuning in the world DOES NOT change the fact that the rods are as thick as a index finger.
RenzoMSP
06-12-2005, 08:15 PM
I had a feeling some people were goin say do it do it. Then some were going to say dont do it look what happened to me. A guy i know can tune cars very well, so im going to get him to help me tune my car when i up the boost. So i will give some updated post later on when it do it. IF I DO IT?
I say do it if you have the money for any consequences.
mp5jeff
06-12-2005, 08:15 PM
yes, our rods suck asscrack, and tuning the car to make MORE power, well that just makes it worse on the rods...
vxfilmer1000
06-12-2005, 08:17 PM
I say do it if you have the money for any consequences.
that is one thing i dont have money if the engine/rods gooooo
CChris704
06-12-2005, 08:17 PM
i'm going to post that picture of brianmp5t's in my garage so incase i ever get a boost controller, i'll always remember. maybe one for under the hood too.
505zoom
06-12-2005, 08:23 PM
yes, our rods suck asscrack, and tuning the car to make MORE power, well that just makes it worse on the rods...
That's why you take the opposite approach and tune it for SAFETY... not to make MORE power. I truely believe that I would blow mine in a second if I went out right now and leaned out the fuel to about 12:1 and gave back some timing.
Don't get me wrong, conservative tuning won't make it indestructable, but it will allow you to run a lot more power than if you were to run an aggresive tune with lower boost.
As always, just my .02
mp5jeff
06-12-2005, 08:37 PM
505, how many miles you been at 12psi....im kind of talking about durations of time also, not like 20k miles(if it lasts that long), i guess what im tryin to say is, on a stock block, with our crap rods, after time, with alot of power, IMO the rods will give out if nothing else happens 1st.
505zoom
06-12-2005, 08:46 PM
505, how many miles you been at 12psi....im kind of talking about durations of time also, not like 20k miles(if it lasts that long)
I started pushing 20psi on the stocker the second weekend of september last year... did that for 3 weekends... stocker gave up... been running the disco at 12psi and higher ever since 2 weeks after that (took it easy for 2 weeks to break in the turbo). I get on it anywhere beween 5 and 10 times a day (every day) for a strong pull through second gear and a lot of times I will shift and go about half way through third. I have put about 11k miles or so on the car since then.
Hope that answers your question.
mp5jeff
06-12-2005, 08:49 PM
11k, not bad, around the mileage my stocker shat the piston, but that was because it was untuned, and i beat it at the track/street alot, so that was my fault, hopefuly it lasts a whlie for you.
505zoom
06-12-2005, 08:57 PM
11k, not bad, around the mileage my stocker shat the piston, but that was because it was untuned, and i beat it at the track/street alot, so that was my fault, hopefuly it lasts a whlie for you.
Won't really need to last much longer... my motor should be here in about a month.(rockon)
Brian MP5T
06-12-2005, 10:08 PM
actually, brian was utilizing a t-25 if im not mistaken, just running like 15psi? i forget...unless he upgraded turbo
GT-28s, but the revs is what killed it.
235 Km/h held for 8 seconds and it went... (blowup)
yashooa
06-12-2005, 10:48 PM
I have 70k miles and close to 2.5yrs at 12PSI daily. I do get pinging at 13PSI in 3rd at WOT over 5500RPM but up to 12 has been ping free. I don't boost hard in 5th at low RPM and I don't beat the hell out of it when I don't have constant airflow over the tiny ass stock IC.
For instance in stop and go traffic around town etc. I do hammer the crap out of the first three gears to and from work and I do enjoy it quite a bit. Will yours blow? Who knows maybe maybe not...
Good luck...
mp5jeff
06-12-2005, 10:51 PM
best way to answer this question is, if shit does happen, are you willing to pay the money it will cost to fix it...because don't rely on warranty.
505zoom
06-12-2005, 10:54 PM
best way to answer this question is, if shit does happen, are you willing to pay the money it will cost to fix it...because don't rely on warranty.
Best statement so far in this thread. IF you can't pay for it, don't play with fire.
BlkZoomZoom
06-12-2005, 10:57 PM
(mswerd)
Brian MP5T
06-12-2005, 11:04 PM
How Much for the Neclace... Makes a great stocking Stuffer...
BlkZoomZoom
06-12-2005, 11:13 PM
All reasonable offers are being considered.
sickspeed94
06-13-2005, 03:13 PM
Best statement so far in this thread. IF you can't pay for it, don't play with fire.
hey i said that in my first post. (poke)
and don't worry about not having the tracking #'s, since it's not your fault i'll just be pissed at cliff... anyway you're on top of it so you still haven't lost my future services don't worry.
peepsalot
06-13-2005, 03:34 PM
That's why you take the opposite approach and tune it for SAFETY... not to make MORE power. I truely believe that I would blow mine in a second if I went out right now and leaned out the fuel to about 12:1 and gave back some timing.
Don't get me wrong, conservative tuning won't make it indestructable, but it will allow you to run a lot more power than if you were to run an aggresive tune with lower boost.
As always, just my .02
So if 12:1 is lean, then what is yours tuned to?
wicked
06-13-2005, 03:50 PM
I ran at 10 psi with FMIC,DP,exhaust,intake,fcd,colderplugs for 40,000 miles,and never poped my motor,and when I finaly pull it apart,the pistons and rods were in great shape.
and I drove the shit oout of the car.
goes to show, the stock FS-DE motor is very unpredictable,boost at your own risk.
wicked
06-13-2005, 03:56 PM
13psi on the stock setup....
http://www.msprotege.com/forum/attachment.php?attachmentid=36503
this is interesting,did you break any pisons,or just bend the rods?
BlkZoomZoom
06-13-2005, 04:38 PM
well the one rod bent far enough that on the bottom of the stroke the bottom of the piston got in a arguement with the crankshaft and lost. The piston was cut in half along with the wrist pin (length wise).
505zoom
06-13-2005, 04:40 PM
So if 12:1 is lean, then what is yours tuned to?
Not saying that is lean.... but I have mine tuned a lot safer than that. Mine dips to 10 at the max tq point and then it comes up to 11 now, and that is what I consider to be a more aggresive tune for me. This is what I consider to be truely safe (when I did my last dyno pull):
http://www.msprotege.com/members/505zoom/263whpdynosheet.jpg
yashooa
06-13-2005, 05:08 PM
goes to show, the stock FS-DE motor is very unpredictable,boost at your own risk.
Exactly...
vxfilmer1000
06-13-2005, 06:07 PM
I have deciced to run 9 psi with : FMIC , Injen CAI , full exhaust , and cold plugs. Then next mod will be dp and FCD. i will keep everyone posted what happens (ugh)
wicked
06-13-2005, 06:18 PM
I have deciced to run 9 psi with : FMIC , Injen CAI , full exhaust , and cold plugs. Then next mod will be dp and FCD. i will keep everyone posted what happens (ugh)
make sure you ask yourself the most important queston;
if the motor does pop,will you be physicaly,and financialy able to repair it?
orng1
06-13-2005, 08:00 PM
make sure you ask yourself the most important queston;
if the motor does pop,will you be physicaly,and financialy able to repair it?that's what credit is for. (first)
BlkZoomZoom
06-13-2005, 08:02 PM
worst answer ever.
505zoom
06-13-2005, 08:03 PM
lol
wicked
06-13-2005, 08:11 PM
(smash)
JBreed
06-13-2005, 08:32 PM
that is one thing i dont have money if the engine/rods gooooo
THen don't do it Man!
wicked
06-13-2005, 08:35 PM
if your confident enough to say that "thats what credit is for",then save yourself the expense,and headaches,go forged now.
BlkZoomZoom
06-13-2005, 08:44 PM
if your confident enough to say that "thats what credit is for",then save yourself the expense,and headaches,go forged now.
(werd) ...... But remember, shit can happen even if your forged. Always have backup plans for backup plans. And if this is your only car, leave it stock.
vxfilmer1000
06-13-2005, 11:53 PM
dang guys. alright alright .i have been thinking and thinking im going to run stock boost for a while on what i have. An maybe and "maybe" being the key word will turn the boost up. So no uppin the boost (for now) (hand)
batmang
06-14-2005, 12:01 AM
just stay at 8... lol
vxfilmer1000
06-14-2005, 12:02 AM
8? what is stock boost for MSP
505zoom
06-14-2005, 12:15 AM
8? what is stock boost for MSP
Anywhere from 4 to 8 depending on the individual car.
wicked
06-14-2005, 03:26 AM
yeah,how were you going to up the boost accuratly without a boost gauge?
orng1
06-14-2005, 06:19 AM
wow, did I get flamed. Save your money and buy a spare motor. Thats what I've done. got a 2.0 from a 02 protege, a set of gaskets and I have the money set aside for the pistons and rods (and rings)finally,now I need a bit for the machining. But if I had not thought ahead and were to blow my daily driver id have to put it on my credit card. minus the labor I have tools and a lot of friends with the experience needed.
jeffmsp
06-14-2005, 01:25 PM
8 or 9 psi i believe is fine with your mods. if you are unsure then get 92+ gas or add some octane booster with each tank of 91. rather than use a mbc and have spiking problems, just adjust the wastegate (or pay someone with your credit if you dont know how) and enjoy a bit of extra boost. going over 9 you better know what you are doing and have proper mods EX: EMS and btw when you tap your vac system for the boost gauge, make sure it is tapped on the intake manifold or you will not be getting an accurate boost reading and might think you are at 8psi but in reality are pinging like a mofo from higher boost.
sickspeed94
06-14-2005, 01:40 PM
i still say just contact rich and get a dual stage boost controller so you only have to run upped boost when you flip the switch. i just recieved mine today and already mounted the hardware (took about 3-4 minutes) all i gotta do is tap some vac hoses and run the wires for the switch (another 30 minutes to an hour at most) and i'll be able to switch between stock boost and 9.5 psi at my leisure, (pretty much only when at the track or the VERY seldome occasion that i mess with someone on the street.)
vxfilmer1000
06-15-2005, 02:20 AM
you know i am thinking bout getting that. Were can i find out how to get it and such.
wicked
06-15-2005, 02:22 AM
I highly recamend going with the www.boostsciences.com dual stage
peepsalot
06-15-2005, 03:09 AM
recommend
505zoom
06-15-2005, 03:15 AM
Thanks for the recommendations fellas. I can get any BoostSciences products for my fellow msp chums. PM me for details and I'll get ya squared away.
vxfilmer1000
06-15-2005, 12:45 PM
PM sent
speedj
06-24-2005, 03:18 AM
I have my 2003.5 msp set at 9 psi with the accuboost controller, I dont want to stress my turbo and engine. What is the stock boost level?some one help me?
Brian MP5T
06-24-2005, 06:37 AM
wow, did I get flamed. Save your money and buy a spare motor. Thats what I've done. got a 2.0 from a 02 protege, a set of gaskets and I have the money set aside for the pistons and rods (and rings)finally,now I need a bit for the machining. But if I had not thought ahead and were to blow my daily driver id have to put it on my credit card. minus the labor I have tools and a lot of friends with the experience needed.
Rings come with Rods.
http://www.msprotege.com/members/Brian%20MP5T/PISTON%20-%20%284%29.jpghttp://www.msprotege.com/members/Brian%20MP5T/PISTON%20-%20%281%29.jpg
Aricjm15
06-24-2005, 09:38 AM
I have my 2003.5 msp set at 9 psi with the accuboost controller, I dont want to stress my turbo and engine. What is the stock boost level?some one help me?
if you want to run stock boost why did you put in a boost controller?
speedj
06-25-2005, 11:49 AM
if you want to run stock boost why did you put in a boost controller?
MM..I just bought this car used, has only 3000k miles on it, and it has a boost gauge installed too. I checked with the Mazda dealer, they told me that the gauge is fine but the boost controller will void the warranty. I dont want to wave bye to the 3 year warranty that is still active.
speedj
06-25-2005, 11:51 AM
MM..I just bought this car used, has only 3000k miles on it, and it has a boost gauge installed too. I checked with the Mazda dealer, they told me that the gauge is fine but the boost controller will void the warranty. I dont want to wave bye to the 3 year warranty that is still active.
I really meant to say 3000 miles only.
Ryoga28
06-25-2005, 11:51 AM
The stock boost level is anywhere between 5-6psi, spiking to 6-7psi respectively.
speedj
06-25-2005, 11:53 AM
The stock boost level is anywhere between 5-6psi, spiking to 6-7psi respectively.
Oh..one more question, do I turn the accuboost controller clockwise or counter clockwise to lower the boost?
Ryoga28
06-25-2005, 11:59 AM
Not sure about which direction lowers boost, but I'm sure the instructions should have it.
http://www.boostsciences.com/accuboostinstall.html
Vampyre
06-25-2005, 12:45 PM
umm not sure if it is counter clockwise or not, but it will be whichever way backs the nob out. like loosening a screw
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