What matters is what the weld looks like on the inside

 

Urge, have you any NA results with this and a decent header?

 

We are building 3 of our GT NA motors over the next month and a few will be on the engine dyno, id imagine one of these will be tested back to back with some ITBs.

We probably wont test on a stock motor as we a full with work and dont have a working stock motor in the shop. People usually send us dead stock motors for us to rebuild. If anyone is interested in buying one and testing on a stock motor, we will pay for a good third party test on a stock NA motor.

Let us know.

 

I wouldn't call it ignoring, looks like I missed a question. You have made 2-3 comments on welding and 2 questions on secondary air injection.
I believe I answered the welding question by providing another picture which everyone seems to agree provides a better representation of weld quality.
I answered your first question on Secondary air injection, which I answered wrong, we do have taps to plug in SAI and valve cover breathing.
I believe your second question is pictures of the modification. We haven't run these on the dyno yet so I dont have pictures of the secondary air injection lines. We have spent a few months of flow testing between our normal work load. K series builds have been on the dyno during that time. We should be dyno testing this on our GT F23 motors soon.

[attachment=34703:IMG_0746.jpg]

As you can see here we do have some taps to run varies air injection and valve cover venting. Or, Like ITBs you can cap off secondary air injection and run a breather kit. Also, you will note extra milling underneath to save weight. This only came in 1 pound heaver than stock, despite the bigger plenum. 9 vs 10 or 10 vs 11lbs I can remember.

 

We have a customer that sent in their DBW manifold. We had to make a few adjustments for their manifold. Hope to have it back to them this week and we discounted for their test results.

 

Patrick, can you post updates on the DBW manifold?

 

Please make sure you guys mill the flange flat. EVERY SINGLE fabricated intake manifold I have delt with was warped all to hell.

one very popular manifold required milling 0.080" off the flange to get it flat.

It seems like as soon as you cut the plenum off the #1 runner moves in toward the #2 runner and pulls that end of the flange up.

Also.. bragging about out flowing some 50mm itb's isnt much to brag out.

This piece of crap I made flowed more than 50mm itb's on the flow bench...



It really sucks that there isnt enough room in an s2000 to make a proper intake manifold. We've been playing with long runner manifolds alot this year and the results are amazing. just gota figure out how to fit a long runner and big enough plenum in an s2000.

 

Maybe do it like this? Runners shaped like a snail to gain length and you can put a big plenum under or in the middle.

 

A lot of the guys over here running them in Escort rally cars and the like, go with nice long runners on ITB's and the midrange torque gains are pretty damned impressive.

 

I would be really interested to see how my kinsler manifold would stack up to this one . Also link to more in depth info on your turbo heads if you wouldn't mind