Originally Posted by Krazie Sj
Actually I read the entire thread. It's very interesting.
That being said I had nothing productive to add to the discussion so I just left it at the inside joke that Tusky baby was referring to.
Good. I like humorous banter.
Went to the machine shop today to go over the design details for the tooter 2.7 intake manifold spacer... and it's all
The date this project began has already been pegged at the beginning of this thread at July the 11th. So the elapsed time to a dyno testable prototype should be right around 3 weeks.
I decided to make a really thick 2 inch spacer, since there is no space restriction on the 2.7 like there is on the 6 cylinder engine. This is going to relocate the throttle body two inches to the right as you're looking at the engine from the front. The Injen intake lends itself to easy relocation because there are only two points of attachment, and one of them is the throttle body. It's basically a free floating intake with no forced points of location... perfect
for a spacer test bed.
The intake manifold runners are presently 17 inches
long (from the orange gasket, to the white line where the runners meet the plenum).
A 2 inch
spacer will make runners 19 inches
long for a increased length of 12%
The latest dyno run indicates that the engine's torque peak is presently at 3,300rpm
. I'm thinking that the torque peak could possibly be relocated down to 3,000, or maybe into the high 2,000's. But only the dyno results will show where it actually ends up. Whether or not there will be an actual increase in torque is a totally open question. This will NOT
be decided by endless empty baseless subjective conjecturing from "butt dynos"...
...but by REAL
It's also possible that the spacer might not net any gains. If it doesn't... the charts will let everyone here know the truth, and that will be the end of this project and I'll simply move on to try out other ideas.
But if the 2 inch spacer does prove by actual
testing to offer documented
low end gains, I'll have some made up and offer them for sale to anyone who wants one on their own engine.
The spacers will not be anodized as that's just an unnecessary added cost that makes no difference in the actual performance of the spacer. Since I have a blasting booth, they will be stainless steel bead blasted to a uniform finish like this...
...and will readily accept any finish.
They will have all of the necessary machined grooves to accept a regular stock O ring Toyota 2.7 intake manifold gasket similar to this and will come with one already on it.
It will also come with all of the necessary longer bolts and bolt spacers to properly support the intake manifold in it's new position relative to the engine. I still need to figure out what hardware to get, but that will be easy to do when I actually have the prototype.