Just came off the dyno with my new extrude honed intake. Previous numbers prior to adding the intake were 378.7hp/440.5tq 1.006 correction. New numbers with the only change being the intake, 390.3hp/451.7tq 1.002 correction. It looks like it works pretty well.

Also did one pull adding the 1-2lb upper (2.8"). 397.8hp/464.1tq.

All number are rear wheel STP correct (1.002 correction) done on a Super-Flow machine.

Based on what I have learned I should be in that 400/500 club if it was done on a Dyno-Jet.

 

Silver-Bolt,
This is with a single blade t-body match ported correct?

 

when you did you upper plenum how much did you take out

My buddy does porting on the side and he can do soem wicked porting. Do you have any tips and pointers for him to go by, I'm going to drop mine off at his house tongiht to have him do it.

 

This is the extude hone upper with a BABolt billet T/B. They are match ported.

RT,
The only way to clean up the intake is extrude it or cut it open and re-weld it. You can gain quite a bit of flow by matching your oval T/B to the intake. Overall you will remove about .040-.080 worth of material to get them to match. That is based on the BABolt T/B. I think the others should be very close.

I think with a set of long tubes to help this thing exhale will make a big difference. Probably work on long tubes next, then the blower and lower intake.

 

I just have a SVO cobra TB on my truck.

Whats the biggest TB out there now?

 

I believe the billet T/B's are CNC machined copies of the Ford piece???

 

How much did the Extrude Hone run you if you don't mind my asking?

 

I cannot speak for any other throttle bodies (billet or cast) but I can say this much. I have always liked the Magnesium SVO unit but Body,Bore and Blade design are not the same. If anyone would like to run a test I can provide a Blade and I would love to watch you make it fit. I have a big hammer too.

 

Hey,

I add my Uper Plenum and T/B ported. I didn't have to get my plenum cut in half and welded back together when it was ported/honed.

My T/B and plenum were matched also.

Take a look...Looks very, very nice and its affordable too.

 

oops, later..

 

Unless I am mistaken the Extrude Hone process should not require the plenum to be cut and rewelded. I believe that the plenum is bolted to a device which slowly forces an abrasive compound through it to smooth the interior surface. My guess is also that progressively finer compounds are employed to get the smooth "polished" finish inside the plenum...

 

You are correct, it does NOT require cutting.

Silver-Bolt said, "The only way to clean up the intake is extrude it or cut it open and re-weld it.

 

The intake was not cut to do this process. DL just missread the post.

 

I misread the post:

RT,
The only way to clean up the intake is extrude it or cut it open and re-weld it.


Hey, It doesn't matter to me, but this is what you posted a few post's up above. I wasn't the only one who interpreted your post differently.

No problem, so it wasn't cut open and welded back together.