Max psi with stock internal?

[nrcooled]

A manual boost controller is the most reliable. All of my experience with EBCs has shown them to be very quirky. I have a t25 on my SR and my EBC (Blitz SSBC) will always spike.

I have it set to 14lbs but it will go to 18psi at times. I have 370cc injectors though so no detonation not to mention the fact that the t25 isn't really pushing much more air at 18psi then at 14psi.

I would suggest a remapped ECU (if anyone does it yet for the MSP) and dyno tuning with a wideband o2 and bigger injectors.

BTW- do MSPs use high impedance or low impedance injectors? Are there any "junkyard" swaps as far as injectors go?

 

[MSP Chris]

Sorry for being off topic but....I have been around alot of turbo cars with the Greddy Profec B, all I always hear is "DUDE! You have to get one". Mainly due to the remote switch that can be purchased as well that goes on the steering wheel for high and low boost. I belive sport compact car did a test on boost controllers, but I dont have a link. All I remeber was the Greddy being one of the least complicated due to very simple and easy functions.

 

[biochembruin]

http://www.sportcompactcarweb.com/

http://www.sportcompactcarweb.com/tech/0207scc_boostcontrol/

 

[iON Performance]

Cirielle - no cats would be used for ultimate power extraction. On the street however, it'd be suggested to have at minimum a hi-flow cat to minimize losses due to restriction. The hi-flow cats used in our turbo-backs have been used on 600hp V8/10/12 applications over in Europe... they should provide a good balance between being enviro-friendly, and performance on the street.

CarlM2 - you can hit us up directly at info@ionperformance.com or sales@ionperformance.com Our site is still undergoing re-construction, which is the reason why you don't see any product info.

 

[MSP Chris]

biochembruin dont miss a beat, you're the man, lol.

 

[biochembruin]

i know

 

[nrcooled]

Sorry for being off topic but....I have been around alot of turbo cars with the Greddy Profec B, all I always hear is "DUDE! You have to get one". Mainly due to the remote switch that can be purchased as well that goes on the steering wheel for high and low boost. I belive sport compact car did a test on boost controllers, but I dont have a link. All I remeber was the Greddy being one of the least complicated due to very simple and easy functions.

The convience factor is not worth the detonation factor. Everyone I know that runs a EBC spikes ...it's a fact of life. The MBC is a different story.

The one friend runs a t28 and MBC, he holds 15psi like nobody's business

Myself and another friend run Blitz (me) and A'pexi (friend). We both spike. Everybody I know spikes with a EBC. It's not really a concern for the SR20DET guys because the 370cc can handle it. The 27?cc injectors that the MSP runs will lead to serious detonation issues with the slightest spike.

 

[low_psi]

In any case though, the stock T-25 Garret turbo is really small and anywhere over say 14psi would be useless...it just cannot support it. I used to such when I had my Eclipse GST running at (stock) 12psi and on high speed runs the car would be boosting like mad and then once I hit around 5800rpm the boost is just gone - internal wastegate doing its job.

max efficiency on the Garret Ball-Bearing T-25 is actually 18psi. the compressor will hodl up to 24 psi MAX.

you can safely run 18psi and make more power than at 14psi, but you have to realize that cooling the air is the most important factor in utilizing full range of the turbo.

 

[t3ase]

I'm running between .8 (~11psi) and .9 (~13psi) bar with stock exhaust/internals/everything else. Only thing I have are colder plugs, Joe's FPR kit and 93 grade gas.

 

[nrcooled]

I'm running between .8 (~11psi) and .9 (~13psi) bar with stock exhaust/internals/everything else. Only thing I have are colder plugs, Joe's FPR kit and 93 grade gas.

Now that's what I wanted to hear!

have you WB O2 this setup on the dyno? Just want to know the levels of knock (if any) you're seeing

 

[t3ase]

Now that's what I wanted to hear!

have you WB O2 this setup on the dyno? Just want to know the levels of knock (if any) you're seeing

Unfortunately, I have no other monitoring tools at this time. I've listened periodically for detonation, however, I haven't heard anything. However, I've been listening while driving at 80+ mph, so that may cover up any new engine noises to some extent. From those who have detonated though, it's apparenly loud enough to hear from within the cabin, so I'm hoping all is well.

 

[Kenetix]

I run 16psi max with the stock internals swapped back in. With the WBO2 A/F is between 12.5 - 11.

 

[MSP Chris]

The sound you guys are looking for would be a pinging.. i.e. ping or ting noise and it would be quick maybe a sec. long at most.

 

[DiscreetSpeed]

I run 16psi max with the stock internals swapped back in. With the WBO2 A/F is between 12.5 - 11.

you put stock internals back in? did you type this right?

 

[Kenetix]

Yup, everything is back to stock besides the piggy back, FCD, MBC, and TT.

 

[MSP Chris]

Do you have your own shop or just alot of free time and a big garage?

 

[Kenetix]

Well, I lost my job, so I have alot of free time. I also have access to a full shop for $1.50 an hour.

 

[MSP Chris]

lucky bastard. I know at Ford it takes me about 2 hrs to pull out a motor. But never fully apart.

Just curious how long did it take you? As well did you even pull the motor out or just the head and bottom end apart / off.

 

[DiscreetSpeed]

so 16 psi with a piggy back is doable....mmmm cool 16 psi(drool)

 

[Kenetix]

It took me about 3 hours to lift out the motor. Its the first FWD I've worked on in awhile, lol.