Butt dyno in the works.

 

cool how much bigger is it?

 

I'll go one better - what size is the stock one also?

 

I'll go re-measure to get both sizes, but with my micrometer it was exactly .030 bigger

 

Butt dyno in the works.

tru

 

sooo intake and everything still fits right on there? Just the inside is bigger?

 

Interesting

Got a part #

Also take some pics so we can see!!!

 

sooo intake and everything still fits right on there? Just the inside is bigger?

YUP

 

We need a dyno XHR!

 

Ooh that sounds like fun. I just gotta find a throttle body. I wonder if it will work for me.

 

it's working kinda strange, the more I drive it the more it re-learns to the increased air flow. I was driving it and watching it on the scanner, and the fist few wide open runs it was on the lean side, but it's slowly richening up. I'd say 30-50 miles of driving it should adapt pretty well.

 

Once it re-learns, do you think another tune could tighten it up?!

 

yeh i bet a tune would be able to get it to run more like it would on a 4.2....idk much about it but i would think so. awesome mod tho!

 

It works!! I put a 4.2 throttle body on my 3.5. Takes a couple of wide open runs for the computer to adjust, but it pulls a lil harder on the top end, feels like a lil more tourque.

Thanks for giving that a try. I had thought of it, but didn't want to invest in an extra TB from the 4.2. Do you have an aftermarket exhaust?

 

3 inch from the manifold back, with a custom 2nd cat and gutted first cat. Plus many, many more mods

 

I see Fun Runs in our immediate future!!! :shock:

 

Bump for size of both throttlebodies.

 

Will it fit an I4?

 

Will it fit an I4?

if its the same one thats on the I-5 i dont see why it wouldnt.

 

I wasn't sure if there was a difference or not, but thanks

 

Nice, good info. This is the perfect junkyard mod.

 

Is .03" difference really worth the price? Couldn't you get that out of porting the TB that is on the I5?

I am not trying to rain on the parade, I just cant image that would generate a huge difference... Skeptical and VERY curious at the same time.

Are you going to rescale the ETC area in the Hp Tuner to match the new size?

 

Couldn't you get that out of porting the TB that is on the I5?

Wouldn't that affect the way the butterfly seats at idle?

 

it's working kinda strange, the more I drive it the more it re-learns to the increased air flow. I was driving it and watching it on the scanner, and the fist few wide open runs it was on the lean side, but it's slowly richening up. I'd say 30-50 miles of driving it should adapt pretty well.

well in that case id get it worked out in about two days driving to work. I guess that would be the only advantage to working across town.

 

I think we're on to something. Maybe Alvin at PCMForLess could give us the lowdown?!!!