max out a t-25!

[gotEclipseD]

if i get a boost controller and alraedy have a bov...wat is the max i can boost on my stock t-25? and is it a big difference?

 

[98TsiAWD]

Originally posted by gotEclipseD
if i get a boost controller and alraedy have a bov...wat is the max i can boost on my stock t-25? and is it a big difference?

About 16psi I believe is the most you can get out of it without just blowing hot air. But in order to run more than 13-14 pis you should have exhaust work done.

 

[gotEclipseD]

yea..i got 3' downpipe with piping done already...

 

[98TsiAWD]

You should be able to run 16-17psi on the T2small if you have the fuel to feed it. Walbro 190lph pump and 550's, SAFC.

 

[boostineklipz]

15-16 psi is fine...i do that everyday and yes its noticable

after 16 psi the t-25 just runs outta breath but you can still squeeze a few more ponies if you run 18 psi, but I dont recommend it

 

[RippinGSX]

You don't need a pump upgrade with a T-25 at 17psi. Just rewire it and 17psi is about the max before it loses it's efficiency. The T-25 just can't produce enough CFM at any boost level to require changing pumps.

 

[larryd]

as Ive said before.. I dynoed the T25 @ 15-20-23lbs and I made more power each time. I know everyone says its not efficient at over 15lbs but mine still made power. And this was on the stock SMIC..

<img src="http://www.newcelica.org/larryd/dyno/02-01-02-dyno_comparison.jpg">

 

[gotEclipseD]

wow..thanx guys...

 

[lambertvr4]

damn, 23psi?! Poor little turbo.

What mods did you have done when you did those dyno runs? Same day?

 

[CL MaNTis GST]

do notice u reach your power peak at a lower RPM..and power starts to drop sooner though (at higher psi).

 

[larryd]

yes the power always drops off with the T25 regardless of boost level. I just wanted to prove a point that apparently even though its blowing hot air at over 15psi it is still making more power. More torque then anything.

lambertvr4, here was the list at that time..

T25, Injen Intake, Greddy Upper & Lower IC Piping, Greddy S Type BOV, Apexi N1 Exhaust, Apexi Front Pipe & Cat Bypass, Magnecor 8.5mm Wires, NGK Plugs, Greddy Profec B Boost Controller

 

[doug]

Good info, Larry-- thanks! Now, a dyno run is one thing, but would it be not recommended to run 20 PSI on the street on a daily driver?

 

[RippinGSX]

Running a T25 at 20psi on a daily basis will just kill it much faster and that's about it.

 

[MaineDSM]

When I was in your situation, I found that running 16psi (spiking to around 21psi, as T25s are wont to do) I ran the fastest times.


Following is my opinion on the T25:

The T25 *does* suck compared to any upgrade you can buy.

BUT, most people never give it a chance. How many T25 equiped cars have you seen running a FMIC, engine computer, race gas, full exhaust, tuned well, etc. etc. I honestly haven't seen many. Most people get rid of the T25 before they really mod and get good at tuning.

If you look on times.dsm.org, you will see there are a couple T25s running mid 13s. I'm personally amazed. I never got my T25 past a 14.4, but then, I never gave it race gas, DSMLink, etc. like I've given my T28.

However, even though the T25 may be capable of good times, isn't reason to not replace it. I've known a couple of people who were running the T25 on the edge, and it self-distructed. Parts of the compressor wheel got into the engine, requiring a new engine.

My personal opinion: Ditch the T25. I think you can get it upgraded to a T28 for 650 bucks now, and you don't need to touch anything on your car. I installed my T28 in the street outside my apartment. It was easy. That was 1.5 years ago, and the thing put a big grin on my face that hasn't come off.

 

[Rob]

Wheres the cheepest place to find the Walbro 190lph pump ?? ive been looking and mostly just find the 255 help me someone =0) thanks

 

[irn__man]

What are the size of the Stock Injectors on a 2G? I thought I remember the size being 450cc, but I can't seem to find the info anymore.


thanks

 

[MaineDSM]

Originally posted by irn__man
What are the size of the Stock Injectors on a 2G? I thought I remember the size being 450cc, but I can't seem to find the info anymore.


thanks

450 is correct.

 

[CH152]

What did you do to get your boost up that high?

 

[GSX_RCR]

My t25 went @ 60k miles running 20psi daily. Poor little thing started smoking and puking oil all over...

I might upgrade to the AGP 28 soon...so all is not lost.

 

[P8ntBalla]

Originally posted by GSX_RCR
My t25 went @ 60k miles running 20psi daily. Poor little thing started smoking and puking oil all over...

I might upgrade to the AGP 28 soon...so all is not lost.

god you people talk about the t25 like its a little puppy or something. i hate mine

 

[-=TWITCH=-]

when you guys say past 16 psi the t-25 is blowing hot air????? does that matter? will "hot air" hurt anything If I get a walbro 190 and log my runs what could I get out of the t-25 can I run the t-25 at 18 psi all the time with the fuel to feed it? my plans are to eventually go FPbigT28 but I would like to get all I can out of the T-25

 

[boostineclipse]

Larry..did you ever run at the track with the same setup that got you the results you posted above? If so, what did you get?

 

[silver91talon]

Originally posted by Rob
Wheres the cheepest place to find the Walbro 190lph pump ?? ive been looking and mostly just find the 255 help me someone =0) thanks

http://www.autoperformanceengineering.com/

 

[DSmAWdGSxTURBO]

damn a supra tt fuel pump for $109.. is that right??

 

[doug]

Well, kinda. Looks like it's not the Denso Supra TT fuel pump that comes stock in a Supra, but a Walbro fuel pump designed to FIT into a Supra. Big difference. I don't even know why they're selling a Walbro 255HP for a Mk IV Supra TT-- doesn't the stock/OEM Supra pump flow more than 255 lph?