FP Big T28

[Colorado KID]

Hey guys. So I bought my 97 GS-T about a year ago but have been in school and my jeep has been my primary driver away at college. I just moved back home as i am finished with school for the time being. Apparently the T25 died and I was needing to replace it. My dad actually went around and bought a FB big T28 to replace the old T25. (I wasn't about to pass up a free turbo).

The real reason for the thread is to ask if I will need any supporting mods for the new turbo. I'm having a hell of a time finding a lot of work, so there isn't a lot of money coming in, but i don't have my jeep, so i need this car running. Once i start making some money i want to start doing some more to the car. My dad and i have been working on the car here and there, and we feel that the car is able to handle a few extras.

I just purchased a 1g BOV, and a new set of oil/coolant lines for the turbo seeing as they were in pretty bad shape. I was just curious what i really NEED to make the new turbo work. (i've read that some say you need a new fuel pump, larger injectors, aftermarket boost gauge/manual boost controller). Do i really need all that?

I'm new to the DSM's and to doing more than routine maintenance on the car. I've read a lot on Vfaq, but still am not sure what i should do. Any help would be awesome.

 

[DSMopar]

Yes you pretty much do need all of that. If you're in a bind and need it on the road fast you can toss it on with a MBC and set the boost low and be ok (assuming the T28 wastegate will go down to 10 or 12 psi)...

 

[907gs-t]

Look at my Profile this should help.

 

[whe3ls]

you shouldnt need anything for stock boost levels

 

[Colorado KID]

you shouldnt need anything for stock boost levels

Great . It's been really hard just trying to afford prices for some parts i needed to get, but hopefully within the next few weeks ill be able to catch up money wise and might be able to put some money down on a boost gauge at least to see what its running. Then I need a place to mount it. I figured that's what would happen, but every thread i read had different information. I was looking at Prosport gauges.. Any thoughts or ideas?

Anyone else have an opinion on what the T28 will need now or in the near future?

 

[whe3ls]

you could get something like this. GlowShift 95-99 Mitsubishi Eclipse Gauge Cluster (2g DSM) - Modern Automotive Performance.

as for upgrades 190 walbro pump(get a 255 if you upgrade to afpr) evo 560cc injectors 1g tb mbc either a vrspeed/ss auto intercooler or a 1g side mount with hard pipes if you dont have the cash. for a tune get a eprom ecu or if your car has one get a keydiver chip.
DSMChips.com | DSM ECU Chips Enchanced by Keydiver

 

[MJBean420]

you might want to get a SS oil feed line. Most people have to replace the stock one when they remove the old t25. I know mine twisted, kinked, and starting leaking when I tried to take mine off. I ended up replacing the whole line from the oil filter housing.

I got a FP t28 too. Just run stock boost levels and you shouldnt have any problems.

If I get a 190 Walbro, I wont need an AFPR? What boost levels might I max that pump at? My goal was to finally get it tuned to run about 20lbs of boost

 

[Zdrummer15]

You can safely run the T-28 in place of the T-25 with no issues at stock boost levels, but just don't expect any big gains. If anything performance will suffer a little. Don't let this stop you from installing the T-28 though. If you ever plan on upgrading the car further (which we all do), then you'll be glad you already have a more capable turbo that can run higher boost with after purchasing supporting mods.

you might want to get a SS oil feed line. Most people have to replace the stock one when they remove the old t25. I know mine twisted, kinked, and starting leaking when I tried to take mine off. I ended up replacing the whole line from the oil filter housing.

I got a FP t28 too. Just run stock boost levels and you shouldnt have any problems.

If I get a 190 Walbro, I wont need an AFPR? What boost levels might I max that pump at? My goal was to finally get it tuned to run about 20lbs of boost

You won't need an AFPR if you only go with the 190lph pump.

 

[saechao04]

If you have the upgraded actuator like I do, you might have trouble keeping boost down. I can't set mine lower mine at all.

 

[GsXtacY325]

T-28 is a direct bolt-on no other "mods" necessary. My T-25 was the first thing to go on my car, and it was replaced w/ a FP Big T-28. My car was 100% stock right down to the stock airbox at the time. I still have the T-28 on my car w/ the mods listed in my profile so that lil turbo has gone from stock daily driver status to weekend warrior that is fairly well modified. Although my next upgrade will be an upgraded hairdryer due to i'm starting to really push the limits of the T-28 and it has finally become the weak link in my quest for more boosting fun. But it has lasted 6 or 7 years 80,000 miles and more awd launches then I can remember so longevity shouldn't be a concern for you. Plus it does give you some room to expand your mod list, although you may find that you will be held back from many mods because it's NOT meant to be a 400hp+ turbo as you probably already know.

 

[pboglio]

^^^Yep.

 

[endeffect0]

You lucked out getting the free upgrade to the t28.

I have a FP t28 and I love it. I bought it pretty much in the same situation as you, so here is what you need to know.

FP gives you an upgraded waistgate actuator with their t28 so you now are going to be running 15 psi at full boost. now thats not Too much, but it is right on the line. so hears what you need to know.

your cooling system will be taxed a little harder than in the past so if you can flush your radiator while your at it do so. check the health of our Side Mount Intercooler, clean the bugs out, straiten the fins with a screw driver ect. If you haven't done it in a while change your fuel filter, you will be right on the limits of the stock fuel system so be sure everything is in tip top shape. double check your timing belt and if you have the $ change out your spark plugs to some fresh ones. Dont cheap out get the oem.

It would be a good time to rewire your fuel pump, that will give you an extra margin of safety on the fuel side. and tighten down all the hose clamps on you boost pipes.

Your going to want to pickup a mechanical boost gauge as soon as possible because of your new higher boost level. you will want to keep an eye on everything you can. I personally run a Prosport oil and boost gauges, i love them and would highly recommend them. I have the two color peak and warn, which i think are great but thats up to you. the amber-red color gauges match the dashboard pretty well and the tint out when off helps not attract any unnecessary attention.

If you have not already check out he free mods list and do the little stuff like remove the BCS resricter ect.

cool thing is, once your done with a minor tune up and you drop in the T28 your pretty much done. you can do intake and exhaust if you like, i would do intake first as the exhaust grabs more attention.. but either way you have a car, that withouht major modification is as good as its gonna get before you get into major power mods.

i have left my car at that point for quite some time because i prefer so spend my money and my time on handling and tires. I could do a big FMIC and a big fuel pump and bigger injectors and a boost controoler and all that jazz. but the car is really fun how it is and i am not taxing it as much as if i modded heavily.



if you ever need any help feel free to PM me. I was where your at not so long ago... like last xmass

 

[donniekak]

Most of the fp big t-28's come with a 17 psi wastegate acutator. If yours has the 17 psi actuator you will need some other mods to run it.

 

[endeffect0]

you might want to get a SS oil feed line. Most people have to replace the stock one when they remove the old t25. I know mine twisted, kinked, and starting leaking when I tried to take mine off. I ended up replacing the whole line from the oil filter housing.

I got a FP t28 too. Just run stock boost levels and you shouldnt have any problems.

If I get a 190 Walbro, I wont need an AFPR? What boost levels might I max that pump at? My goal was to finally get it tuned to run about 20lbs of boost

KID:
I got the SS braided oil line too. Worth every penny. seriously consider it. does not seem like a big deal but it was a big improvement to working on my car.


Bean:
the walbro 190 is commonly sold in the Low pressure version which wont require a FPR on our cars. the 255 is offered as both high and low pressure too, the 255HP flows a bit more and is pretty much the only one people buy/talk about but the low pressure is a good pump too. any will work just fine for a t28 even at max boost.

 

[ifeelubu]

I have mach v big t28 with supporting mods but when i first got it i was all stock and it ran fine

 

[endeffect0]

Most of the fp big t-28's come with a 17 psi wastegate acutator. If yours has the 17 psi actuator you will need some other mods to run it.

yep. but in my experience and that of most others their 17psi actuator falls slightly short of that. get the boost gauge, but i think you will find yourself right about 15psi.

its on the limit for sure.. but i run dsmlink and data log often and it has never given me any issues.

 

[Colorado KID]

you might want to get a SS oil feed line. Most people have to replace the stock one when they remove the old t25. I know mine twisted, kinked, and starting leaking when I tried to take mine off. I ended up replacing the whole line from the oil filter housing.

I considered the SS line because my oil line ended up pretty messed up. I shopped around though and got a brand new OEM one for $10. Since moneys a little tight, i figured i'd use that until i had some extra cash for the car.

I did just open the T28 about 5 minutes ago. Apparently my dad chose the porting option when he ordered it. Is this going to be a problem if i have an unported manifold, o2 housing and a stock exhaust and just a standard turbo gasket kit?

Also, I feel that the car was running a little rich when i bought it. I was reading that it could be a faulty o2 sensor, but yet i had no check engine light, and haven't checked to see if it has a code because the lack of the light. Could this turbo actually help lean it out? (i read it could somewhere, could have been here).

 

[jjrock5]

Most of the fp big t-28's come with a 17 psi wastegate acutator. If yours has the 17 psi actuator you will need some other mods to run it.

since when do FP 28s come with the upgraded 17 psi actuator? It's always been an aftermarket piece you buy on the side.... FP sells them separately.

 

[endeffect0]

dont know what to tell you on that one man. i know mine came with it, i know i didnt pay extra for it.

I considered the SS line because my oil line ended up pretty messed up. I shopped around though and got a brand new OEM one for $10. Since moneys a little tight, i figured i'd use that until i had some extra cash for the car.

I did just open the T28 about 5 minutes ago. Apparently my dad chose the porting option when he ordered it. Is this going to be a problem if i have an unported manifold, o2 housing and a stock exhaust and just a standard turbo gasket kit?

Also, I feel that the car was running a little rich when i bought it. I was reading that it could be a faulty o2 sensor, but yet i had no check engine light, and haven't checked to see if it has a code because the lack of the light. Could this turbo actually help lean it out? (i read it could somewhere, could have been here).

first off, your dad is awesome. you need to make him some cupcakes or something. Or maybe he just really want his grage back, i dont know.

A ported trubo will be just fin on a stock maifold and exhaust. it wont live up to its potential because it will be transfering from a large ported area to a more restrictive one. just means this car has a lot of room to grow when you get intio it. +

how do you know you are rich, are you looking at plugs or just getting crappy gas mileage. Either way, adding boost is not the right way to lean it out. it will be safer as you try out the new tubro for the first time.. but your still going to want to narow the issue down and fix it.

 

[jjrock5]

dont know what to tell you on that one man. i know mine came with it, i know i didnt pay extra for it.

Here's the t28 with a stock actuator, you can see it doesnt have the adjustment nut on the arm:

Forced Performance Turbochargers: DSM FP Big 28 Turbo

And here is the aftermarket 17 psi actuator that they sell separately (note the adjustable arm):

Forced Performance Turbochargers: FP DSM 17psi DSM T25/T28 Actuator

I used to have a FP T28 this is why I was wondering. I even have a brand new 17 psi actuator that I never got a chance to install when I sold the car. anybody interested?

 

[Colorado KID]

dont know what to tell you on that one man. i know mine came with it, i know i didnt pay extra for it.




first off, your dad is awesome. you need to make him some cupcakes or something. Or maybe he just really want his grage back, i dont know.

A ported trubo will be just fin on a stock maifold and exhaust. it wont live up to its potential because it will be transfering from a large ported area to a more restrictive one. just means this car has a lot of room to grow when you get intio it. +

how do you know you are rich, are you looking at plugs or just getting crappy gas mileage. Either way, adding boost is not the right way to lean it out. it will be safer as you try out the new tubro for the first time.. but your still going to want to narow the issue down and fix it.

Ha Ha, Its probably because he wants his garage back, or because hes living vicariously through me. He's always wanted to do some custom work/have a faster car, but he always put everyone else before him and never bought anything for himself. We practically had to force him to buy his Subaru Legacy(best car he's probably ever owned). Its an 05. He got it in 06 for like 10k because it had like 45k miles on it already.. But now he complains saying he should have gotten the GT with the DOHC.. (he wouldn't have done it anyways).

Well i thought it was running a little rich because the exhaust smelt like there was some unburnt fuel in the mix and the plugs look a little carbon fouled and the gas mileage wasn't amazing, but i sure beat my 12-15 mpg in my jeep.

Anyways, Im pretty excited about getting this car back on the ground and rolling.. but guess what happened.. New crack on the valve cover.. my dad "misread" the torque specs for the VC, and CRACK. Small little guy, but its big enough for a decent oil leak.. I don't blame the guy.. he was at work from 5 am till 9:30 last night.. He was just trying to help (mom's away on business and he didn't want to go to bed that early). Hopefully i can get a weld or a new one out of him too .. but i won't push my luck.

 

[endeffect0]

Your a lucky kid. sounds like your old man would be a good candidate for overhaulin.

you can get away with JB welding that. alot of these valve covers crack. cheap cast aluminum. If you jb weld i would try to do it on the outside if possible just to minimize the risk of a pice coming lose and ####ing up your vale train. If its in the corner of the sparkplug well you can get away with putting it on the outside just fine. like with bondo keep it as thin as is reasonable and clean all of the oil and grime off first.

I cracked mine the same way, not paying attention. and when my old man was helping me rebuild my motor last year we/he bent a piston ring while trying to tap it in. had to pull it out and start over. thats life some times, we still had fun working on it.

 

[Colorado KID]

Yeah. That's what i was hoping. I took a closer look and it may be a little worse than i thought.. I'll have to check. I did happen across a junk yard today and after looking in like 10 1g's i spotted one. It has a few problems too, but it was 11 dollars, and i can return it. So i figured what the heck. Unfortunately. None of em had a ECU left. (figured i could sell it or something). Plenty of Jeeps still had their ECU's tho.. .

Anyways, theres a few more yards i can pull through till i figure out what i want to do with my cover. (and until the rest of my parts show up..)

Yeah... When i was like 6 i told him that if i had a million dollars i'd buy him a 59 Corvette.. (he drools everytime he sees the auctions on the Speed channel. Ha)