Vinnie,

You still have that spacer???

Go by JDM ya rat baaas-tard and give Justin my check! Oh yeah, and good luck in Florida man!

Hugs and Kisses,

Dan

 

 

gator appears to have the proof in his dyno graphs.

kinda hard to dispute hard evidence.

I bought a spacer but hadn't decided if I was going to install it yet.

my question is sorta like "lurker" said, could the spacer actually hurt the performance in terms of heat retention in the blower?

with the stock setup, the upper intake plenum is hanging off of the top of the blower sortof acting like a big heat sink.

if you isolate the upper with the spacer then you leave the supercharger housing alone to dissipate all of the heat. less surface area equals slower heat dissipation.

however maybe the "cooler" air intake charge offsets this?

who knows really?

just thinking out loud I guess.

later,
chris

 

Superfords, you said exactly what I was thinking.

Putting a phenolic spacer between the EGR valve and the plenum may have some advantages. But the thing is, does most of the EGR heat come from the actual exhaust gas or is it transferred through the physical connection?

 

If an air filter added significant horsepower, I would expect to see dyno charts proving the point. I have not seen them.

Do you have a dyno near your house? Why not go there and do a before-and-after -- same day, fully warmed-up engine, average of three before/three after pulls. That might cost $100, but it would be worth it to make sure that your butt dyno is calibrated.

My truck makes more HP after I wax it. I am absolutely sure of this point. My butt dyno doesn't lie. Perhaps it is a reduction in aerodynamic drag. But I'm POSITIVE that it has an effect.

Convinced?

I didn't think so.

I am no more convinced that an air filter adds enough HP to register on a properly calibrated butt dyno.

 

Do you have any data from a fully warmed-up engine? I would expect the spacer to really shine under those conditions.

 

Vinnie's my man-*****!

Just ask Rob_02 about the Vinnie 'pricing'...there's no Vaseline included, so you should at least get a hug and a kiss!

 

It's about time someone made a EGR spacer

 

It just seems to me that there is a great need to try and keep the charger AND the upper intake as cool as possible.
With that in mind why hasn't a vendor offered a spacer to go
between the engine(intercooler) and the supercharger??
Maybe also a spacer for the upper intake as a complete kit.
Both spacers might be 1/4" each, total 1/2" so that connections
hood clearence, ect., would not be a problem.
Such a kit would interest me greatly!

 

IMO you wouldn't want a spacer under the SC. With the SC sitting on the intercooler the intercool is able to draw some of the heat out of it. If you use an insulator then the heat has no where to go, and stays in the intercooler. That is just my opinion.

 

if you felt the 3 or 4 hp then you would surely feel the 8 hp I gained with the spacer
Where the spacer truely shines is on a hot motor as seen in my orginal post. I honestly feel there is no debate if your still running the stock or ported HEATon. As ole Vinnie said, its just a piece of the puzzle. For me its a part of the total sum, which is 484 rwhp on a stock long block with a Apten ported blower

If your happy, Iam happy

 

Hey Buddy

Sure do, in my orginal post I showed a before and after pull on a cold motor and a before and after on a hot motor. I also noted intercooler temps. Trying to put hard data out for the community as you do ...........

Your my hero

 

I didn't feel any gains what so ever with my CAI, but funny thing is I have gained almost 100 HP over the past 6 months and it still doesnt feel much faster:go figure.

Now as far as having a dyno re create the benefits of a cai, a lot of things need to be done.

-1st the hood needs to be closed.( which can be done)

-2nd the Fan at the dyno needs to create a realistic amount of air through the CAI. (this may be a little harder to do, but is still possible)

----On a side note, I got a more conservative tune the other day, and instanly felt the loss of power. The dyno backed my SOP results up with a 30 lbft loss in torque across the board. Its sad the only time I felt a difference in power is when I lost some.

 

Excellent points, SS. But I bet that if you left the hood open and used a small fan, you might be able to roughly simulate underhood temps at speeds.

We did about a zillion dyno pulls last month for evidence to use in court. One of the things that we needed to account for was airflow across the intercooler. We had to use a $5,000 trailer-mounted, gas-powered blower to get 70 MPH air at about a 1' X 2' exit. No way in hell that you can get accurate airflow (100+ MPH) across the front of the vehicle for a whole pull with anything short of a wind tunnel.

So the solution would be to measure underhood temps at the strip and then try to recreate them with smaller fans, raised/lowered hood, etc.

 

Right on VINNIE.