T25 or 14B

TEAMpK · Post by **TEAMpK** » December 28th, 2004, 10:02 pm

I have 4 turbos...currently I run a VJ-11. I have another VJ-11 on my new motor on the way and then I have a 14B and a t25. I am not sure wheter to run the T25 or 14B. DOes anyone have either installed? My friend is gonna get whatver one I don't take but I was hoping someone has tried to or successfully fit one or both of these on a B6. Thanks for the help.

JWMotorsports · Post by **JWMotorsports** » December 28th, 2004, 10:40 pm

It will take either a custom manifold or you'll have to fabricate an adapter plate in order to use either turbo. The 14B (I'm usuming you mean a Mitsubishi 14B) will make the most power compared to the VJ-11 or the T25. The VJ-11 will be the quickest spooling and the 14B will be the laggiest. If you are interested....I have a Mitsu 16G (small 16G) for sale off my brothers talon. It is a little over one year old and the only reason we are selling it is because the new turbo manifold was designed for a Garrett T3 Flange. So we are using a Garrett GT32 on his car instead of me fabricating and offset adapter flange to make it work (I was going to put the GT32 on my RX-7).

TEAMpK · Post by **TEAMpK** » December 28th, 2004, 10:50 pm

I think I might go with the T25. Do you know what rpm it spools at?

papa roached · Post by **papa roached** » December 28th, 2004, 10:52 pm

damn, i used to live in bellevue man

TEAMpK · Post by **TEAMpK** » December 28th, 2004, 10:56 pm

Oh ya. In NE? It's fun around here because there are like 10 MX-3's, and one kid has neons and tried to be all Billy Bad a-- on me and I had to wax him. Noone has seen anything like what I got. I am gonna drop some mad stuff into here in like 4-6 weeks.

papa roached · Post by **papa roached** » December 28th, 2004, 11:01 pm

yea in NE, wasnt 10 of them around there when i was there

TEAMpK · Post by **TEAMpK** » December 28th, 2004, 11:03 pm

Ya...it's amusing. I take it to the race track here and drag race it and everyone is like WTF is that. It's good times. Did you do a disc conversion on yours?

papa roached · Post by **papa roached** » December 28th, 2004, 11:39 pm

no, the one i had then is long gone

TEAMpK · Post by **TEAMpK** » December 28th, 2004, 11:41 pm

Ahh..oh well. As soon as my B6T gets here I will just test fit em and see how it turns out. I will prolly run the T25 as right now the only track around here is an 1/8 mile.

JWMotorsports · Post by **JWMotorsports** » December 29th, 2004, 11:10 am

The 14B is the one I'd recommend. As far as lag goes I'd guess the 14B would have maybe 500-700RPM more lag than the VJ-11 at most. You would probably only have around a 300RPM differance between the 14B and T25. The T25 falls off WAY be for the 14B when it comes to compressor flow. The Second Gen Eclipse and Talon came stock with a T25....may pitch them in favor of the 14B w/ a stock First Gen Manifold (or EVO III), 16G, 20G, Frank series, or even T3/T4 Hybrids. There are a LOT of Talons and Eclipses running 12sec. 1/4 miles on the 14B's. They are over spining them to make the power, but those DSM's weigh nearly 1000 lbs. heavier than our MX-3's. With that said....theoretically you could run a boost level within the compressors safe effeciancy range and pull solid 12's all day long. The 14B w/ a large front mount intercooler 2.25" IC pipes (maybe even 2.5" pipe from IC to Throttle Body) and 14-16psi of boost would be a NASTY streetable MX-3.

TEAMpK · Post by **TEAMpK** » December 29th, 2004, 2:54 pm

YA..I am thinking the 14B. I just need to figure out how I will make it bolt to my manifold. I can't wait to get this biotch done.

JWMotorsports · Post by **JWMotorsports** » December 31st, 2004, 3:39 pm

I know the feeling....I've had mine tore apart since Sept. 2003 this time around. It still won't be complete even after I get it back on the street. At 13psi I should make around 300WHP which is where it will sit for a while. My clutch, test engine, and the back up tranny are at there limts at this point. I have a total of 3 engines, 2 trannies, and 2 sets of axels so far. After we finish building the race engine and tranny, upgrade the rest of the fuel system (again), and get a twin disc carbon fibre clutch I'll be good to turn the boost up to 30psi. At that point the car should lay down 500+WHP. Then comes several NX goodies pushing the power to 650+WHP. I'll be lucky to run turbo only at full boost for the 05 season.

What · Post by **What** » January 2nd, 2005, 1:43 am

I wouldn't go with the T25 as an upgrade either.... the 'potential' sucks and the lag difference between the two will not be that bad as mentioned.

However, don't expect to be running 12s... the DSMs that do on the stock 14B are pushing the turbo to the extreme, generally use race gas at the track so the ECU keeps timing advanced, and are generally always awd. The FWD dsms are 300lbs or more lighter and slower than the AWD at the track (generally as far as ETs go). The limiting problem on the mx is not going to be power/weight but traction. FWD and horsepower doesn't mean 'go fast at track'. The DSMs have a huge advantage of being able to pull 1.7 second 60fts. on street tires. If you can use some all-season at the track and do that in the fwd, high power mx, post details.