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ic upper pipe and BOV and a Boost controler

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RayBan GST

15+ Year Contributor
665
4
Oct 21, 2007
DUBAI UAE, Asia
hi all , i just have quick question i hope you can help me with

my friend has a 1 g GST 93 Model and he made a nasty accident last week and the car got scraped ( there is no way to fix it ) the chassis is toasted , thank god nothing happend to him


his car was slighlty modified and he wants to give me his IC upper pipping , and the BOV
1g and Pipe that connect the Throttle body to the BOV as well ( they are all Greedy) plus he has a MBC and a Boost Gauge ( i have all these things now with me ) the question is , is it worth it to put these things on my car which is 100% stock ? and how much horse power gain i will get ( is it worth installing these things on my car or it wont make any difference) i mean now my car has nice power for stock and i am afraid to mess it up , however these parts are tempting me a LOT :cool:

just want to know if it really makes a difference ( by the way i got the parts for free ) :)

thanks in advance
 
You can definitely use the MBC on your car but I'd look into a boost gauge first. I'm pretty sure the UICP won't fit. But I have seen some crazy things on here so it may work with the right couplers. If not hold on to BOV because you could use it later and just sell the pipe.
 
You will be fine putting that stuff on there but it will take some work to make the piping fit, youll have to customize it. But the bov will help and the boost controller will also but i wouldnt go to crazy with turing the boost up till you have something to control your fuel. Also make sure you have an aftermarket boost gauge before you go turing your boost up. The factory boost gauges suck! Also what kind of bov is it?
 
any idea about the HP gain ? and once we say the metal pipes beats the rubber ( can i really feel the difference on my stock car?


after installing all the things that i mentioned it will really gain power or its not worth it ??
 
The only thing in that list that will make a noticable difference is the MBC because you can turn up the boost...but with that said, the others are good supporting mods for pushing the higher boost. The stock 2g BOV can't hold crap...I can't boost higher than 14psi or it all dumps out of the BOV. Stock is 12psi, and its a very noticable difference to jump to 16psi which you can do relatively safely on your stock fuel system with those mods.
 
The uic pipes would fit with some minor modding but in my opinion it's not worth it, i would keep the bov and order a pipe flanged for the 1g bov and put that on there. Also the mbc shouldn't be a problem installing, that will give your car a noticeable difference, but just to be safe i would keep the boost at 15 psi (i like to be on the safe side of things). As for hp, not sure but the pipes wont really add anything, if anything the mbc is the only thing that would give your car the extra "umph".
 
Also the mbc shouldn't be a problem installing, that will give your car a noticeable difference, but just to be safe i would keep the boost at 15 psi (
The problem here is that he doesn't have a boost gauge...
 
1st off, if its free, take it. 1g bovs definitely hold more boost than the 2g, metal piping vs. rubber hoses will always last longer and look nicer. as for the mbc, i wouldnt install until you get a wideband o2 gauge/controller if you plan on going past 16 psi.
 
He can still install it and enjoy the benefits of a 16psi car in the meantime, even if he intends on pushing it harder later. Judging from his posts, he doesn't want to deviate very far from stock...so I think he will be quite happy with 16psi. If not, its still a good start :p no point in trying to run before you walk, especially if you have the parts just sitting around.
 
Keep it at 15 psi, at 16 psi you'll be overrunning the stock fuel pump. You CAN run 16 psi without the rewire, but I really wouldn't recommend it.

OP: Slap on the MBC, order the "1G BOV on a 2G" adapter from any of the vendors, rewire the fuel pump, and boost to 16 psi. You will feel a noticeable increase in power. It won't be world ending power, but it'll pull quite a bit more than stock.


If you want real power though, next time your friend parts out his 1G, grab the turbo and lines off of his car, and put it on yours. You'll definitely feel the top end you never had before.
 
For sure do the MBC and the boost gauge. I'm not sure the IC piping will fit, if it does the HP gained will be minimal, not able to be felt. The BOV will be nice in that it won't leak like the 2G can.
 
Has anyone here read the part that said he also got a boost gauge included for free ? He doesn't need to purchase a boost gauge unless the one he got is broken.. Sorry had to let it out.
 
If you don't plan to go any further in modding or power searching, none of these parts are worth it.

However, once you start, I doubt you'll be able to stop.

With that said, if you decide to install these parts:
The boost gauge is one of the best things you inherited. The stock gauge is not very functional. It will show you what's going into the motor and will reveal problems such as boost leaks if you know what to look for.
The BOV is probably second best. Stock 2g BOV is plastic junk and will hold maybe 10-11psi before giving you a problematic boost leak. However, you will need the proper flange to fit it to your intercooler piping. This brings us to:
The UICP. The 1G version will not fit the 2G version. However, since you have a nice BOV now, I suggest getting an aftermarket UICP properly flanged for whatever BOV you have. BE SURE TO RECIRCULATE.
The MBC is good to get you a bit more power before you need to upgrade any other parts. Keep in mind that the stock fuel system can only handle 15psi max.

Properly installed in good running order, your gains will be noticeable, but not don't expect anything insane.

These mod's are really minor mods and won't mess up the running condition of your car unless you screw something up during install. Be sure to do a proper BLT afterwards.
 
thank you all for the great input :) THANKS



just have a though , what about installing the boost gauge and the MBC ONLY ( no pipes change no BOV Change) and boost my car to 14 psi only ( without changing the BOV i will still use the 2g Stock BOV)


you think that i should be fine ? i mean no leak in the BOV? i just want to reach 14 psi nothing more at the moment ( i drive the car everyday and i dont want problems)

14 PSI is not much but for sure much than what i have now
 
14psi is fun for 14 min, Install the boost gauge and new bov they are basic upgrades that are needed down the road. Stock bovs leak (boost leaks are bad) As long as your on the t-25 your not going to be seeing crazy amounts of boost (hairdryer ) Replace or rewire the fuel pump and crank up the boost a little. Im pretty sure I was running 14-17psi with no problems stock. When your ready upgrade to a 14b turbo and you will be having fun ;)
 
The boost gauge you can just put in like its nothing and if you have the 1g BOV its a quick swap really :\ the 2g BOV is plastic and the 1g is metal and you can crush them to make sure that its running right, but you don't have to.
 
thank you all for the great input :) THANKS



just have a though , what about installing the boost gauge and the MBC ONLY ( no pipes change no BOV Change) and boost my car to 14 psi only ( without changing the BOV i will still use the 2g Stock BOV)


you think that i should be fine ? i mean no leak in the BOV? i just want to reach 14 psi nothing more at the moment ( i drive the car everyday and i dont want problems)

14 PSI is not much but for sure much than what i have now

There's a tidbit of information in the last post of mine that says something along the lines of "Stock 2g BOV is plastic junk and will hold maybe 10-11psi before giving you a problematic boost leak." You will not reach 14psi and attempting to do so will only result in a huge boost leak and harm your car.
 
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