a good rule of thumb on that is that if the gasket is metal, it is the "D" or restricted one. if it is paper than more than likely it's an "O." you can see part of the gasket sticking out between the TB and the manifold without dismantling it. check that out first.

 

nice writeup and nice info too. i always enjoy reading about what mod is next. i am too interested in the O gasket when you do get them.

 

I think I will get more. The demand is starting to climb again.

Justin-

Has anyone asked you about your avitar yet? Holy cow!

 

I still have yet to install mine.

 

I believe the downside of this is that the blowby or by products of the combustion process that make it past your piston rings are not being sucked out of the crankcase and reintroduced back into the intake for reburning. The net effect of this could be an increased buildup of the harmful chemmical components in your oil, which are responsible for the break down of the oil's lubricating properties. I know some of it is being pushed out of the new breather, and this is how it was done in the old days, however, I believe the PCV process is more effecient at evacuating the gasses and reducing the rate of introduciton into your oil. IMHO

 

The PCV mod is no longer recommended. What's the matter, you didnt want to read 5 pages of posts?

You are correct, with the PCV mod, I could smell gasses that did not go through the Cat. In other words, it stunk.

 

Not sure if anyone found the right gasket number or not. I ordered a couple from my dealer using the TRD partnumber from my 2nd gen S/C and have one lying in front of me. The TRD Gasket Part Number is 00602-17620-032. I thought someone might run across this thread and look for the right number. I paid $6.50 each from the dealer.

 

Thanks for the update, Christian.
I saw a couple of those fuel filters a few days ago and was wondering how that mod was treating you.

 

BUmp for good thread hey christian got any more gaskets?

 

Oh yeah, I promised a bunch of people I would get some. Let me look into that again.

I think I can do $4 each. But let me check.

 

Thanks, man! Been waiting!

 

Yeah i was trying to figure out what the o gasket is till i read this humungous thread. Hmm damn its raining outside so i havent verified if i have the d gasket. Hey christian i like to see some dyno runs with your tricked out NA setup..

 

Yeah, me too. But I wouldn't expect a real nice looking dyno slip. I think the mods performed thus far have only bumped my HP + TQ in a very small RPM range - I am guessing somewhere between 3600 ~ 4600. Unlike a properly tuned SC'd 5VZ, which should show a nice linear HP increase once the parasitic drag of the SC'r is overcome.

Here is the order of power enhancements, in order of the largest gain IMO:

1. Headers
2. Gear ratio change (4.10 - 4.30)
3. Deckplate mod
4. Exhaust (hacked out stock muffler, welded in glasspack)
5. ISR mod
6. TB bore
7. Type O gasket mod

5 - 7 were not noticeable by the seat of my pants.

 

Bump so Mark can see the pics easier. Good luck Mark!

 

THANKS MAN!

 

and.....

DONE!


There're a lot of mods on my truck, and I never expected to feel something this slight (and I don't), but knowing that lip is gone gives me a bit of a smile on my face.

What I did do to get more oomph during this pass under my hood was to... realize that my throttle cable had about 1/4" of slack in it. oops.


Thanks for the idea Christian!

 

Awesome Mark! Now, go smoke some ricers!

 

Why?

 

it stinks

 

Literally!