450cc or 750cc?

[MSP09]

My MSP is really runnig funny with the 750cc injectors. I can t get her tunned really runs rich and when I start to tune the car and get her to read a good AFR it has a hard time staying running when I come to a stop. I am thinking on going back to my 450cc that car ran rich but never had a problem when I came to a stop. I was looking forward to boosting the car higher than 10psi. I wanted to go for about 20psi. My fuel pressure is set at 40psi right know. Man I just want my car to read right. Can anyone help me? Thanks.

 

[jeffmsp]

well what ems are you using to tune these larger injectors? fyi the mechanical capacity of the stock engine and turbo will not allow for 20psi.

 

[njintau_fsd]

Yeah what he said, I hope you have some forged internals in there lol, after 10 psi, the engine will probably blow. Btw, couldn't help but notice you're in TN, you're not around Nashville are you? I know I've seen one other Spicy and a yellow MSP here...

 

[MSP09]

I am running a microtech and am in clarksville.

 

[BRIAN_MP5T]

Have a look at www.mp5t.com

The fuel should be 50-60 PSI

A set of 440cc will not cut it for 20+PSI

A Set of 750cc are large for 20+PSI

Look at the 550cc STI (Drop In Subaru injectors)

Your transmission will not hold over 350 WHP for very long.
Your Engine (Stock MSP will not hold over 200 WHP for very long)
a Forged Engine is good for 450 Daily, and 500+ if you are ok with the chance that it will let go.

 

[bwlknsn91]

Have a look at www.mp5t.com

The fuel should be 50-60 PSI

A set of 440cc will not cut it for 20+PSI

A Set of 750cc are large for 20+PSI

Look at the 550cc STI (Drop In Subaru injectors)

Your transmission will not hold over 350 WHP for very long.
Your Engine (Stock MSP will not hold over 200 WHP for very long)
a Forged Engine is good for 450 Daily, and 500+ if you are ok with the chance that it will let go.

Really? You think the stock internals in a MSP engine can't handle over 200hp? Even with meth injection and a conservative tune?

 

[MSP09]

The motor is fully built and has a bigger turbo. I really need a 440cc fuel map for the microtech, do you know where I can get one? Also where did you find out the info for the fuel pressure? I have 450cc in the car right know so what will be a good pressure?

 

[BRIAN_MP5T]

Really? You think the stock internals in a MSP engine can't handle over 200hp? Even with meth injection and a conservative tune?

I dont think... I know....


The ******* Rods are made out of Cheddar not Metal...

 

[bwlknsn91]

I dont think... I know....


The ******* Rods are made out of Cheddar not Metal...

So you're saying I should go forged before even thinking about adding anything else to my car?

 

[junya1985]

So you're saying I should go forged before even thinking about adding anything else to my car?

Bingo I bent a rod on 10 psi stock turbo