question about a t28

[JiveMasterT]

So, it looks like my t25 is on it's way out and I was thinking about having it rebuilt into a t28 by forced performance. My concern is that since it has basically the same internals as a 16g, would I have to do fuel mods to use it, or could I keep it at about 15 psi and run it like that on the street? I'm assuming that I could just keep it at around 15-16psi with my rewired fuel pump and be fine, or am I wrong?

 

[importboost]

you should have no problems bolting on a t28 with no fuel mods or anything. i had a t28 on my old 7bolt and it ran great. the turbos are the same size they just put a different size turbine in it. of course fuel mods would help greatly but not necessary. i didnt run 15psi daily but i did on track settings.

 

[2gGSX]

I ran a Big T28 on my car for about 8 months on the stock fuel, 15 psi sometimes 16 psi spikes were no problem.

 

[JiveMasterT]

ok cool... thats so good to hear. I really just wish I could hold 15psi to redline with a little bit of room to move up in boost, but maintain the quick spool I'm used to for taking the twisties on the mountain and backroads that I enjoy so much.

those with the t28, how did you like the spool, holding boost, and overall power? did you notice a difference between the t25 and t28?

 

[importboost]

t28 will flow higher cfm than the t25. if no boost leaks it will hold till redline. top end will be much more impressive than the t25

 

[2gGSX]

Mine did not hold boost until redline, the spool was the same as the T25 if not a slight bit laggier for me, and I did notice a power difference. Peak airflow I logged while I still had it was 28 lbs/min at 17 psi. It did not increase as I raised boost, so I believe that my wastegate was the problem. If you do get a T28, be sure to check out FP's 17 psi actuator upgrade--people have recommended it and jumped from 28 to 34 lbs/min on the DSMLink forums.

 

[turbolarry]

those with the t28, how did you like the spool, holding boost, and overall power? did you notice a difference between the t25 and t28?

I had the FP big T-28 and I loved it. Spooled perfect for a daily driver and I didn't have a problem holding boost to redline. I definately noticed a difference from the stocker, especially after mixing in some 100 octane and raising the boost to 20 psi.

 

[JiveMasterT]

cool, thanks for the tips. May have to just bite the bullet and get this done when I recover from holiday expenses.

 

[mitsuclipsegsx]

So, it looks like my t25 is on it's way out and I was thinking about having it rebuilt into a t28 by forced performance. My concern is that since it has basically the same internals as a 16g, would I have to do fuel mods to use it, or could I keep it at about 15 psi and run it like that on the street? I'm assuming that I could just keep it at around 15-16psi with my rewired fuel pump and be fine, or am I wrong?

hey,what have you been up too? havent talked to you in a while,i thought you were going with a 50 trim last time i talked to you

 

[JiveMasterT]

hey,what have you been up too? havent talked to you in a while,i thought you were going with a 50 trim last time i talked to you

I was going to and then a few months later, when I had all the money set up for the project, my tranny blew up taking the clutch and flywheel with it. You can imagine it was a little expensive to replace. Then I realized at 100k+ miles on the motor I should probably not be pushing my daily driver too much. I still have my spreadsheet setup for the build to... AGP RS49T, extreme intercoolers fmic, gm maf, etc. I even have the GM Maf I bought from a friend . Trust me, I still really want to do a 50 trim and get the car into the 12s but I just don't have the money right now... I mean... I do, but I think I'll just pay off the car first and see what happens.

BTW, hit me up on AIM sometime... it has been a while.

 

[azonic]

I run about 20 lbs of boost at the track on my FP T28 and it has been good for a 12.43 @110. So far, I'm fairly pleased with it. I've logged 33lbs/min at 19lbs of boost with the 17psi actuator. I would strongly recommend some 550's, somthing for tuning(dsmlink), fuel pump, and a good O2 housing porting and exhaust to make the most out of it.

 

[ACM]

I have an FP B28 on my street DSM, I'm very happy with it. However, it completely maxed the stock injectors/fuel pump out by about 15psi on street fuel. I upped to 550s and a 3000GT pump in order to get the IDC to something tolerable at 18-19psi.

I use DSMLink in both cars, so I do have complete control and logging, I wouldn't want to play with this without.


Charles