Anyone out there port the snout the the TVS 1900 or 2300 to add a larger throttle body like a 112mm? did you gain boost? what kind of gains did you see?

 

No sir but larger intake gains boost. Larger exhaust lowers it.

 

The more air you can put in front of a blower, the more air she will compress: aka more boost.

I have an L67 Buick, I ported the M90 on my mill, put a 4" intake and 4" TB on it, on the same 3.4" pulley we went from peak boost of ~7.5lbs to a peak of ~11.2 according to the logs.

This is highly dependent on weather and air temp too, but with a weekends worth of work I gained closed to 4lbs by letting her breathe easier

dont forget to clean your air filter regularly as well, will help economy as well as boost. Ram air your intake if you can.

 

It's been a long time, but I'm pretty sure that it was 1-1/2 psi that I gained by building a larger inlet housing for my blower to accept a 102 mm throttle.

 

I had to look it up, I can't believe it's been 8 years. I gained 3 psi.

https://www.performancetrucks.net/fo...-block-458677/

 

Ya. I ran a Holley 105mm on my 2300 with a 5” intake. Still have them both as a matter of fact.

 

that's whatI plan on doing. what kind of gains did you see? did you port the snout yourself?

 

Had a machinist friend port the snout of my 2300 to 104mm. Using a Nick Williams 102mm throttle body and a 5" intake. No hp data for that specifically as I made other changes at the same time but like others have said boost will increase.