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[whiteflash]

ok, ive read the tech guide and searched a bit, so i'm thinking i want to get a 1g bov and MBC so i can raise the boost alittle. I already have a catback exhaust, filter and adapter, and boost and A/F gauges. Would i see a significant gain from the bov and mbc? When i was searching i saw that the 1g bov is not a direct bolt up to UICP, but that it needed a flange, should i get a new UICP that bolts to a 1g bov? i new to DSM's and would like to do it right the first time. any suggestions would be great! thanks,
Jordan

 

[v8killerr1]

ok, ive read the tech guide and searched a bit, so i'm thinking i want to get a 1g bov and MBC so i can raise the boost alittle. I already have a catback exhaust, filter and adapter, and boost and A/F gauges. Would i see a significant gain from the bov and mbc? When i was searching i saw that the 1g bov is not a direct bolt up to UICP, but that it needed a flange, should i get a new UICP that bolts to a 1g bov? i new to DSM's and would like to do it right the first time. any suggestions would be great! thanks,
Jordan

If you do the 1g bov I would go ahead and get a uicp with the 1g flange. You don't technically see any gains from the bov, but it doesn't leak like the 2g when you up the boost. You'll see a little bit with the uicp. My recommendations is to go wtih a pipe from dejonpowerhouse.com. I used their intercooler pipe setup for a long time until I installed a fmic with short route piping.

 

[mjarrell20]

There won't be any gains from the 1g bov, but it will hold better than the 2g and you'll be able to raise the boost without any leaks. Do you already have a boost controller?

 

[whiteflash]

\ Do you already have a boost controller?

no i don't, i really wasn't expecting any gains with just the 1g bov but combined with the mbc.

 

[NoNaMeS]

You may see a gain if your current BOV is leaking, the MBC will let you raise the boost. Raising the boost will increase power. Do not turn the boost up as high as it will go, that would be bad. Definately get a datalogger sooner than later.

 

[mjarrell20]

With everything stock you're safe to turn up the boost to 14psi, after that the stock fuel system can't keep up. But I wouldn't touch the boost without a logger.

 

[Spooling99]

Boost leak test first. Then pick up a logger. If you want to save some money you could simply do a BCS mod and it will raise the boost like 1-2psi. Your gonna need a Hard UICP with the 1g flange as stated before. Good luck.

 

[kenamond]

You can also use an evo3 BOV, and it bolts right up to the stock 2g UICP.

A new BOV *will* help with power if yours is leaking at 12psi and you plan on upping the boost to 14psi.

You might need to get a longer BOV hose with the evo3 BOV, because the nipple comes off at a different angle, but that hose is super-cheap.

Get a logger. You can get package deals including the PDA for ~$150 which isn't pocket change, but it's a good deal for a logger. Also check the classifieds. If you catch the fever that most of us have caught, you'll be doing other mods, and you NEED a logging device.

Keep in mind that boost is more-or-less a torque multiplier, and power is more-or-less torque times RPM, so yes, upping the boost will give you more torque which will give you more power. But also keep in mind that the T25's compressor is not designed to go past 15psi boost, and those "more-or-less" disclaimers translate into "less" if you try pusing it farther (it blows hotter air which causes knock which causes the ECU to retard timing which decreases power, so you end up with less power at 18psi boost than 15psi - and knock is a bad thing).

 

[Spooling99]

Very good info Mack. There is a nice Logger setup for sale on DSMtrader. Even a color screen .

 

[zachakagoat]

I have a dave brode UICP and a 1g Bov and I definately noticed a slight increase in thottle response and a better BOV sound. Once you get a mbc youc an turn it up and that UICP will open it up real nice. I am putting my 2g back to stock and will have a Dave Brode UICP and 1g BOV for sale when I get the stock parts in monday. PM if you are interested

 

[92BoostedDSM]

if he isnt i am intersted...

 

[mjstruck]

The 2g uicp will not fit your 1g but they do have a david brode uicp for a 1g. anyways back to whiteflash's question. the uicp will help open up the air flow where the stock piping literally becomes flat going to the smic. you look for more efficient air flow and throttle response instead of a power gain. it helps your future mods perform to their full potential.

 

[roberx]

i think your next mod should be a boost controller, do not put of buying a boost controller you can get them for a good price.

 

[whiteflash]

ok, now i have another question...when i first started looking into the 1g bov, i didnt know i needed a different UICP, so should i just get the evo3 bov with an mbc or get the uicp and 1g bov, then get the mbc when i get the money? thanks again

 

[10minutequarter]

My vote is for UICP with 1g BOV. Those things are so soft that I'm sure anything above stock boost will blow them up like balloons. I had an adapter flange made for a 1g BOV my an exhaust shop and installed an MBC, damnest thing. Now the car spikes to 20 psi and will only hold 13psi.

 

[spyderturbo007]

I vote for the UICP and a 1g BOV and here is why.....

I posted this a couple of months ago, showing the performance gains between the stock UICP and a RRE UICP. Granted, I am modded further than you are, but you will still see some gain.

http://www.dsmtuners.com/forums/showthread.php?t=196116

 

[jtmcinder]

I would suggest the RRE UICP with a 1G valve, as well, and strongly second the idea of stopping at 14 psi if you have a stock fuel system and no way to log knock. Above that, a t25 isn't going to do much more than heat the air, anyway, and it sure won't hold much more (if that) to redline.

- Jtoby

 

[whiteflash]

thanks guys