anyone replaced all the vacuum lines?

[03MSPRO]

what size hose did you use? how did you keep the hoses from kinking? The is a built in 90 deg. elbow at the wastegate and intake manifold. How do you remove the metal clamp at the intake manifold, BPV and wastegate? What is the size of the nipples at those locations (I guess that would dictate what diameter hose to use?). I decided to replace all the stock vacuum hose becuause I don't like them!! They are too stiff and brittle. Any reason why I should not do this? Thanks.

[03MSP]

I don't think there is a reason not to do that, they are very bad hoses stock.

I replaced my wastegate line and bpv line, I used 7/32" which is just a hair too big, but they fit fine. I think 3/16" is the stock size, but advance auto parts only had 3/16" fuel line, not vaccum line, so I went with the 7/32".

About the clamps, I just pulled the one on my wastegate off since it is a metal nipple and I wasn't worried about it breaking. For the BPV one you can either try to get the clamp off or just cut it to hell.

[ForceFed]

Any reason why I should not do this? Thanks.
Possibble warranty issues down the road.
Matt

[03MSPRO]

I thought stock was 1/8"???? so your wastegate line does not kink since it has to make a 90 deg. turn?

[03MSPRO]

Possibble warranty issues down the road.
Matt
I already voided my warranty!! :(

[celdridge]

I already voided my warranty!! :(

I replaced all of mine with new hose ... and i have no warranty issues at all. The Mazda tech even said to me. "looks like you replaced all those crappy hard hoses" ... i was like .... ummm humm.

[03MSP]

I thought stock was 1/8"???? so your wastegate line does not kink since it has to make a 90 deg. turn?
Nope, no kinking.

[Pkay]

1) stock hoses suck bad.

2) stock clamps suck bad.

3) find the hose techniques website and purchase the kit for the P5. Plenty enough of each size.

4) go to autozone and pick up some new clamps
Very easy to do. Very reasuring after its done. I'll look for a pic of mine

[Pkay]

very old pic of my setup but you get the idea. I'll take an updated pic later. Keep in mind you might want to still keep a lot of the heat shields used with the stock hoses for protection.

http://www.fushca.netfirms.com/images/swaybar1.jpg
http://www.fushca.netfirms.com/images/swaybar2.jpg

[Pkay]

I thought stock was 1/8"???? so your wastegate line does not kink since it has to make a 90 deg. turn?
Connectors solve that problem but isnt really needed. Unless you're using heater hose it'll be hard to find a vaccum hose that'll kink like that. The stock hoses are overly brittle (sp?)

[Dr.Sound]

I replaced all of mine with new hose ... and i have no warranty issues at all. The Mazda tech even said to me. "looks like you replaced all those crappy hard hoses" ... i was like .... ummm humm.that's cause u didnt go there with a popped engine

[celdridge]

Connectors solve that problem but isnt really needed. Unless you're using heater hose it'll be hard to find a vaccum hose that'll kink like that. The stock hoses are overly brittle (sp?)

You got that right ... i snapped the wastegate hose off in my hand when i tryed to remove the dang thing fromt he T connector. That was reason 1 i replaced all the hoses. Reason 2 would be that the factory setup does not really provide enough vacuum for running a single BOV setup imo. So i spiced the brake booster line and gave the wastegate a dedicated source.

[celdridge]

that's cause u didnt go there with a popped engine

I have a statment from the dealer in writing that they will not void me based on aftermarket upgrades to a certain point. There are certain stipulations, but as long as i dont do anything stupid ... im covered.

[celdridge]

that's cause u didnt go there with a popped engine


By the way ... the Mazda warrenty says that they have to proove specifically that your upgrade caused the problem. How can they equate vacuum hoses to a blown engine?

[Dr.Sound]

i've posted this before
late last year all mazda dealerships got a letter from Mazda NA saying that if the wastegate line is cut or repplaced, then the car is a candidate for a prior installation of a boost controller.
and that's it.
they will tell you to go f#ck yourself.

and i know, u gonna say "oh, i'll sue them"

u can try (they might be wrong), but by the time this goes to trial, u will be out many thousands of dollars.

not trying to start a fight, u're cool celdridge, just stating the facts.
u havent been here long enough to witness the battles people had with Mazda.
they wont budge, and they have many more lawyers than anyone of us could afford.

this all happened after a guy in orange couty blew his mottor.
his dealer was the only one i know of that fixed his car "complementary" and not thorugh Mazda NA.
basically dealer ate 3-4k, or whatever it is for a new motor.

[celdridge]

i've posted this before
late last year all mazda dealerships got a letter from Mazda NA saying that if the wastegate line is cut or repplaced, then the car is a candidate for a prior installation of a boost controller.
and that's it.
they will tell you to go f#ck yourself.

and i know, u gonna say "oh, i'll sue them"

u can try (they might be wrong), but by the time this goes to trial, u will be out many thousands of dollars.

not trying to start a fight, u're cool celdridge, just stating the facts.

this all happened after a guy in orange couty blew his mottor.
his dealer was the only one i know of that fixed his car "complementary" and not thorugh Mazda NA.
basically dealer ate 3-4k, or whatever it is for a new motor.

Wow ... thats good information ... i had no idea. I guess its too late for me, but others should know this. Mazda can be sneaky bastards sometimes ...

My signed warrenty voucher does say that i can install a EBC as long as boost is kept at a resonalble level ... ie under 10. Im sure they would find a way to screw me in the end though. My warranty is not exactly through Mazda NA though ... its through an aftermarket company ... i paid about 4k for it when i bought my car. I can do most everything except swap the turbo or install NOS.

Ohh and dont worry ... i don't jump into e-fights over something like good information.

[Notorious]

an incorrectly installed vacuum hose delayed the opening of the wastegate, and resulted in higher boost than the engine was designed for.

thats how easy it is for them to blame you.



By the way ... the Mazda warrenty says that they have to proove specifically that your upgrade caused the problem. How can they equate vacuum hoses to a blown engine?

[Dr.Sound]

an incorrectly installed vacuum hose delayed the opening of the wastegate, and resulted in higher boost than the engine was designed for.

thats how easy it is for them to blame you.(sad2)

[celdridge]

i've posted this before
late last year all mazda dealerships got a letter from Mazda NA saying that if the wastegate line is cut or repplaced, then the car is a candidate for a prior installation of a boost controller.
and that's it.
they will tell you to go f#ck yourself.

and i know, u gonna say "oh, i'll sue them"

u can try (they might be wrong), but by the time this goes to trial, u will be out many thousands of dollars.

not trying to start a fight, u're cool celdridge, just stating the facts.
u havent been here long enough to witness the battles people had with Mazda.
they wont budge, and they have many more lawyers that anyone of us could afford.

this all happened after a guy in orange couty blew his mottor.
his dealer was the only one i know of that fixed his car "complementary" and not thorugh Mazda NA.
basically dealer ate 3-4k, or whatever it is for a new motor.

You know whats really sad ... i have my 2G DSM with about 500+ HP and they Mitsu dealer never once gave me any issues with warranty.

[Dr.Sound]

yeah....kinda sux

so far my dealer has been good to me, maybe you got lucky with your DSM as well.

i've heard horror stories from evo guys.
dealers not covering clutches, trannies, LSd's.......

[jersey_emt]

yeah....kinda sux

so far my dealer has been good to me, maybe you got lucky with your DSM as well.

i've heard horror stories from evo guys.
dealers not covering clutches, trannies, LSd's.......


I've heard that too...people with bone stock EVOs are having trouble with warranty issues.

[celdridge]

yeah....kinda sux

so far my dealer has been good to me, maybe you got lucky with your DSM as well.

i've heard horror stories from evo guys.
dealers not covering clutches, trannies, LSd's.......


I think the EVO is a whole new beast for Mitsu ... they seem to be getting crappier with the newer high HP cars. The 2G 4g63T's were awesome cars though ... dealershups didnt seem to mind you going crazy with them.

[Gbourdon]

Wow ... thats good information ... i had no idea. I guess its too late for me, but others should know this. Mazda can be sneaky bastards sometimes ...

My signed warrenty voucher does say that i can install a EBC as long as boost is kept at a resonalble level ... ie under 10. Im sure they would find a way to screw me in the end though. My warranty is not exactly through Mazda NA though ... its through an aftermarket company ... i paid about 4k for it when i bought my car. I can do most everything except swap the turbo or install NOS.

Ohh and dont worry ... i don't jump into e-fights over something like good information.
(boom05)

[jersey_emt]

Oh, and I've said it before, and I'll say it again. My stock wastegate line cracked, and caused me to overboost. Now had I not known what was going on, I would have definitely popped my motor. But instead, I knew what happened, and immediately got off the gas, drove to the nearest auto parts store without hitting boost, and replaced the line with a part that EXCEEDS OEM SPECS.

Mazda would be damn stupid to try and deny me warranty work because I replaced a faulty part. My lawyer is a friend of the family, so legal fees would be very low to nothing.

[Dr.Sound]

I think the EVO is a whole new beast for Mitsu ... they seem to be getting crappier with the newer high HP cars. The 2G 4g63T's were awesome cars though ... dealershups didnt seem to mind you going crazy with them.heh
maybe not a lot of people were into modding back then......not a lot of claims.
dunno......

seems like it's everywhere now......some kid redlining his DX civic waiting for VTEC to kick in.
then POP.

[Dr.Sound]

Oh, and I've said it before, and I'll say it again. My stock wastegate line cracked, and caused me to overboost. Now had I not known what was going on, I would have definitely popped my motor. But instead, I knew what happened, and immediately got off the gas, drove to the nearest auto parts store without hitting boost, and replaced the line with a part that EXCEEDS OEM SPECS.

Mazda would be damn stupid to try and deny me warranty work because I replaced a faulty part. My lawyer is a friend of the family, so legal fees would be very low to nothing.lol
right on dude :)

hopefully it will never come to a point where you have to fight fighting Mazda.

[jersey_emt]

Oh, and I've said it before, and I'll say it again. My stock wastegate line cracked, and caused me to overboost. Now had I not known what was going on, I would have definitely popped my motor. But instead, I knew what happened, and immediately got off the gas, drove to the nearest auto parts store without hitting boost, and replaced the line with a part that EXCEEDS OEM SPECS.

Mazda would be damn stupid to try and deny me warranty work because I replaced a faulty part. My lawyer is a friend of the family, so legal fees would be very low to nothing.

Now of course, if the replacement line fails, and I overboost and damage the motor, then definitely my warranty is gone, and I definitely wouldn't try to fight it, it was my fault. But if my engine fails at stock boost, then it's being covered under warranty, no matter how many legal hurdles I have to cross.

[yashooa]

what size hose did you use? how did you keep the hoses from kinking? The is a built in 90 deg. elbow at the wastegate and intake manifold. How do you remove the metal clamp at the intake manifold, BPV and wastegate? What is the size of the nipples at those locations (I guess that would dictate what diameter hose to use?). I decided to replace all the stock vacuum hose becuause I don't like them!! They are too stiff and brittle. Any reason why I should not do this? Thanks.
Mazda replaced all mine for me. :) They were falling apart.

[Dr.Sound]

hey yash, why are u running arround the forums without your "special kid" helmet on???
u gonna get hurt again!

[Notorious]

hehe, in a dx your gonna be waiting a long long time


heh


seems like it's everywhere now......some kid redlining his DX civic waiting for VTEC to kick in.
then POP.

[celdridge]

heh
maybe not a lot of people were into modding back then......not a lot of claims.
dunno......

seems like it's everywhere now......some kid redlining his DX civic waiting for VTEC to kick in.
then POP.

Yeah ... thanks Fast and the furious for making my life harder.

HAH

[Pkay]

What it all comes down to is if your dealership is a prick or not. Service managers make bank on doing as little warranty work as possible. Some service managers take pride in mazda products and own up to bad products others will try to charge you to put air in your tires.


Regardless if you're not planning on keeping this car for a few years or aren't ready to "pay to play" then dont go that route. If you're upgrading vaccum lines you're wanting to extend the functionality of your turbo reliability etc etc. If that voids your warranty than make sure its worth it in your eyes.

[yashooa]

hey yash, why are u running arround the forums without your "special kid" helmet on???
u gonna get hurt again!Oh damn the can opener may get stuck to my metal plate again!@
Turn off the microwave Mom TURN OFF THE MICROWAAVVEE!

[03MSPRO]

ok, back on topic.
so what size hoses are you guys using? I can't find 3/16" vacuum hose anywhere!!! I can find 3/16" fuel hose though. I can find 7/32" vacuum. Ist that OK? Does the wastegate require a special thicker hose so it won't melt?

[msp4you]

I think the EVO is a whole new beast for Mitsu ... they seem to be getting crappier with the newer high HP cars. The 2G 4g63T's were awesome cars though ... dealershups didnt seem to mind you going crazy with them.

Yeah, aside from crank walk!!!

[Pkay]

ok, back on topic.
so what size hoses are you guys using? I can't find 3/16" vacuum hose anywhere!!! I can find 3/16" fuel hose though. I can find 7/32" vacuum. Ist that OK? Does the wastegate require a special thicker hose so it won't melt?
it couldnt hurt anything for it to be thicker

best bet is to use some of that foam type hose cover thats used near our engine bay

[Dr.Sound]

the fuel lines are braided, hence can withstand more pressure.
i would use a fuel line for my wastgate line.
i actually have done this on few MSP's and always used fuel line.
fuel line is also recommended for use with MBC's, especially if u're running long lines, to eliminate spiking.

[Pkay]

In my new setup I have a braided line coming from my wastegate with that heater shield cover on it. Inside that cover I have a connecter which goes into silicone hose through the rest of the setup into and out of the mbc.

I had originally had straight silicone but had the spike issues..... from my little bit of fucking around, it seems the spike issues with silicone hoses hooked up with an MBC only happen on curves or corners. If you have your lines setup where the hose is stable (ie tied down in a few locations) then the spike issues dont happen.

As long as you keep your lines as straight, and short as humanly possible then all is good.

[celdridge]

Yeah, aside from crank walk!!!


The 3g64T didnt have an incredable problem with crankwalk ... the 3g64 however did ... also the last generation of the 3g63. Mine only had the stock crank, pistons, and rods for about 6 weeks though.

[03MSPRO]

well, I replaced all the vacuum hoses with 7/32" vacuum hose. The stock hoses are 3/16" but I could not find it anywhere. 5/32" and 7/32" were the closest vacuum hoses I could find. I was not going to run fuel lines everywhere so I went with 7/32". 5/32" was too difficult to fit over the BPV nipple. My hands are still hurting from installing the Unichip!! I have blisters in 3 fingers fromtrying to reconnect all the crappy stock hoses that kept splitting!!! I might replace the wastegate line to fuel line though.
BTW, all the hoses that came with the Unichip where soft silicone.

[Pkay]

www.hosetechniques.com (http://www.hosetechniques.com)

do it up man.... you wont regret it

[BlkZoomZoom]

Don't get the hosetechniques flo orange vacuum lines.....no matter what they tell you they DON'T match the stiching in the seats.

[azian6er]

Don't get the hosetechniques flo orange vacuum lines.....no matter what they tell you they DON'T match the stiching in the seats.

haha looks a bit off there. Maybe pait your valve cover?

-B

[BlkZoomZoom]

I was thinking about it....I don't know though, I hate making things look "pretty". It's a car.....it should be bare metal anyways.

[Dr.Sound]

yeah, Lucky Dodge (that's really the owner's name, no kidding :D) is a very cool guy.
he prototyped my car for the kit for MSP.
his garage looks bad-ass.....it's like 3 stories high.

[Pkay]

If anything it helps you get more familiar with your car and future problem areas to be aware of. Plus in reality replacing the stock hoses somewhat forces you to clean up mazdas sloppy job

Less clutter= less hoses or wires resting on hot objects = less annoying problems.

[03MSPRO]

I replaced all the vacuum lines again. This time I used the correct size, 3/16" fuel line. I found one that was not super thick and looks nice. I like it better than the 7/32" vacuum line since I was afraid it would melt (we all know how hot it gets under the hood) and it was just a bit big (1/32" big to be exact).

[Dr.Sound]

nahh, those lines (even very thin ones) are designed not to melt.
unless it touches the turbo.....then anything would melt......

i lit a sigarrette off my turbo at the track once :D

[BlkZoomZoom]

"i lit a sigarrette off my turbo at the track once :D"

Thats why I wrapped mine up. lol<!-- / message --><!-- sig -->

[03MSPRO]

nahh, those lines (even very thin ones) are designed not to melt.
unless it touches the turbo.....then anything would melt......

i lit a sigarrette off my turbo at the track once :D
You are probably right, but since I replaced the wastegate line with a 3/16" fuel/emissions line since I did not want to use a soft vacuum line that would expand, I also replaced the other 2 lines (BPV and IM). The 3/16" line fits better over the nipples. 7/32" was a bit big.

[MSP#735]

what is the diameter for the hose going from the intake to the exhaust mani?? is it 10mm??

[peepsalot]

You mean the one that goes from your intake mani to your turbo wastegate? There shouldn't be anything going from your intake manifold to your exhaust manifold except your egr tube, and that is made of metal. Got a pic of the tube you are talking about?

[JDM Sam]

edited for a bunch of blabber.
OG's in the house!

[MSP#735]

You mean the one that goes from your intake mani to your turbo wastegate? There shouldn't be anything going from your intake manifold to your exhaust manifold except your egr tube, and that is made of metal. Got a pic of the tube you are talking about?

ok maybe im wrong about the name but, it goes from the intake pipe, up to the valve cover (actually under it) not sure what its called, obviously but, im wanting to replace it with a yellow hose....
the pic attatched is referencing the hose (with the red arrow pointing to it)

thanks!!

[CChris704]

bump for an old thread but i have a question... i was thinking about getting the hose techniques kit... my hoses look like they are going to go bad any minute now but all i see is a protege5/regular protege kit... will this work for the MSP and have the lines that go to the BPV and whatnot? Thanks in advance!

[b00sted]

i remember a long time ago...probably around beginning of last year i think people tried using hose techniques p5 kit for the msp and had minor hose length issues. i could be wrong though but im pretty sure.

[Wingman21]

You are probably right, but since I replaced the wastegate line with a 3/16" fuel/emissions line since I did not want to use a soft vacuum line that would expand, I also replaced the other 2 lines (BPV and IM). The 3/16" line fits better over the nipples. 7/32" was a bit big.

Hey guys,

Bringing up an old thread here, but what sort of clamps did you guys use when replacing your vacuum hoses? Did you re-use the stock one?

Thanks

[HondaNoMore]

(bump) also curious