For those with MPINicks T25 Upgrade..

jeffmsp

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Contributor
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2003 MazdaSpeed Protege
how much did it end up costing you?

what was the turnaround time?

Did you get your S pipe or exhaust manifold ported with it?

what are you using to tune? Anyone running just fuel control? (no timing control)

Anyone running it on the stock motor?

If you had a chance to do it over again, would you still upgrade the T25R or just spring for a GT28RS?

What was your overall impression of the work that was done?


Thanks for your replies, Jeff
 
I love my upgraded MPNick T25R/GT25R!!!

it spools super ******* fast and yes I got the S-pipe and exhaust manifold done, but I didn't the S-pipe becuase I have the complete ION 3" turboback exhuast. I can't ******* beleive how much more power my car seems to have. I was goofing around with the turbo setup on my old motor becuase I had an extra one and I wanted to see what the turbo could do. My car lept like a Cheetah and would throw your ******* ass back into the seat to the point a guy who was 6" something and of decent size said he would truly had a hard time reaching for the dash...

I ran stock motor with MPI and J&S at 12psi daily forever and then would do some fun runs at 15psi...

I thought I blew the first engine, but it ended up only being backed out all of my exhuast manifold bolts....

I ran that day with me and the other guy on a cold night 16.9psi, 17 psi and then 19 psi before backing out the bolts and let me tell you it was a ******* animal.

Total cost was $580 to have the turbo, exhuast manifold and S-pipe ported and polished and to have the GT28RS wheel installed.

All I can say if you already have the turbo YOU CANNOT GET ANY BETTER FOR $580!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
would this upgrade be worth it to someone like me..ive got most major mods except for the manifold..im runnin like 10psi on the stock motor..would 10psi on the upgraded turbo do alot more than standard 10psi
 
the stock turbo is more than enough to blow the motor,so with the modified one pumping more air than the stock, it will fail at lower boost levels. I believe the upgrade would make 10psi pull harder in the top end.
 
I suggest the gt28rs,if you want to lay bigger power later,or if you want to drag.
not because it has higher output potential,but it is better for boost in the top end due to it taking longer to spool,and flowing higher CFMs it will hold steddy high boost better.

if you want this for just daily driving,fun,and HP range about 200-250,then the stage 1 t25 will be fine,it's a lot easier to fit in then the GT28RS.


I say this because if you want good times at the track,you will be hurt trying to keep traction with a turbo that spools as fst as the stage 1 T25 does,even though on paper the dyno will show about the same peak HP per same PSI.
 
wicked said:
if you want this for just daily driving,fun,and HP range about 200-250,then the stage 1 t25 will be fine,it's a lot easier to fit in then the GT28RS.
MPNick said:
Stage I is machine out your comp housing. Port out your exhaust housing, S pipe and exhaust manifold. Add a larger comp wheel. This set up flow very well, go for up to 320-330whp with the right mods.

I will think MPNick is right on this just because the stock turbo OEM as is will make 250whp now with larger internals(gt28) it will probably make more than what it was originally designed for 250whp, I will think that once you do this upgraded t25r and dyno it you'll probably get less than 320whp unless you have a good mechanic.
 
my MPI nick turbo will be here next week and I will be the third person here in dallas to get it. Richard apocman has it and so does moeed, who before the mpi nick turbo he was running n/a on his p5. for the money you can beat the nick upgrade and its going to put down power comprabale to the disco patato.
 
you miss understood me.

the stage 1 can produce the same HP as the GT28RS,it just dos it in a different spot in the RPM range.

it spools earlier,and flows less CFMs then the disco does,causeing it to have more lowend on boost,and boost sooner.this makes it a harder turbo for launching.

the disco has to take more time to spool making it easier to keep traction,and doesn't fall off in the top RPM the way the stage 1 will.


get it?

stage 1 vs. the disco
part 2.

stage one and disco=same peak hp
disco ---------spools slower,stays constant boost through higher revs
stage 1-------boost comes on quike and strong,hard for traction,falls of at higher RPM when boosting higher.
 
wicked said:
just wanna make sure you read this
Have you seen the CFM graph for the stage I or stage II? Can you post them? I have looked for them and have not been able to find them. Up to my knowledge and the research I've done never seen anything about an upgraded t25r to loose boost at higher rpm's and also I've never had niether on my car so can't compare, but if you can find the graph that would be big help.
 
Stage I is Compressor side machined and upgraded wheel.
Stage II is Compressor side and exhaust side machined and upgraded wheels.
Both Stage I & II include the manifold and s-pipe porting.
 
All I know is my car "if memory serves me correct was boosting very early, but not one time did I feel it back off or plain out and that was at 6500rpm and up to 19psi,

Now I backed my exhuast manifold bolts out, but the ******* car was a tiger jumping on a kill...

as a matter of fact the guy that was in my car was not physically able to reach forward and touch the dash the entire time I was in boost...

I was able to throw five grown men back in their seats in my car in every gear through the entire rpm range while under boost at 10psi (the one in the middle in the back seat complained becuase he did not have a headrest like the others and it hurt his neck snapping back....

I know for a fact my cock must have instantly grown three feet each time I went into boost with this turbo setup made my love makin to the wife turn into " I'm gonna bang you till you can't walk s***" and all she could do is mur'mer weird sounds in attemps to talk afterwards before passing out from exhuastion and a complete feeling of satisfaction....


Yep all I know is I sure would love to race a disco agianst my setup now that I got FRANKEN'SPICY running agian, as of last night....

Im tellin ya complete utter satifaction with this setup. you will truly feel like a well hung porn star when at your local hangouts
 
wow that was x rated.
Me too, I have the MPNick treatment plus ported Spipe & manifold. Mine was damaged from abuse? when he took it apart & the wastegate was fragged, cost me over $1100. My fuel system is stock with a BEGI rising rate FMU and essentialspeed O2 modifier. My engine is built with Wiseco pistons and Pauter rods, ported head too. I haven't really stomped on it with race gas yet, but I have run it with 94 octane and water injection at 15psi for very short periods (like 5-10 seconds). 15psi pulls like a bastard, but most of my trackdays I stick to 9 or 10psi. I have not dynoed it with this setup.
IMHO I should have gone GT28RS, but I didn't know my turbo would be so costly to fix until it was all apart.
I have a FJO wideband that reads 10.2 for most of the rev range at 9spi. At 15 psi it leans out very badly above 5k. I have a 255lph walbro waiting for install next month.
 
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