Can't find allot of info on the "90 degree elbow" on top of the single plane intake

What are the pro's and con's of this set up..
can it fit under the stock hood "95 T/A"
has anyone done this
how will will this work with a N/A set up...

thx

 

I should have some dyno #'s & track times this week for you. I'm testing one on a Super Stock LT1 car.
Steve...

 

that would be very cool Steve.

What kind of money is put into this set up
any pic's

What is the set up on the super stock car

there has the be more people then this doing it...
thx

 

Have you thought about a 4 hole air valve and a regular carb style air cleaner? You can get them in most sizes to fill your air need's,and the clearance issues may be less of a headache.

 

Why do you need the elbow? Why not use the stock tb pointing up?

 

I'm running a throttle body facing up on top of my single plane. I cut the cowl, but wasn't that bad.

Neal

 

Bud M Link is not working???? is there any more pic's of this.....

I thought the elbow would be easy wat to go??? with money and under hood??

What are some other ways

 

So far the $$$ is not much as I've only changed the bolt patten on the intake so it will mount to the LT1 heads. $220 or so for the intake, $100 for some flat milling to set down clean on the LT1 castings, $75 for the bolt pattern. The owner of the car has fab'd his own elbow. No port work has been done yet as I will be matching this intake to a set of LT1 heads I'll be porting for the car next month. We just want to get an "out of the box" test on the intake.
The current set up of the car is a NHRA Super Stock (I forget the letter designation) spec motor... stock unported heads, factory spec pistons, rods etc... unported LT1 intake, stock TB. TH350 tanny with 6,000 stall, cam is in the 275 @ .050 range with lift in the .680" range all on a 108 LSA.
The car weighs 3,400 lbs and runs 10.79 on a 1.39 60'. This should be an interesting set up by the first of the year... in this class I can port the runners of the heads to 175cc, but not touch the combustion chamber, also run any metal intake, but must retain the factory 48mm TB in the stock location/position, hence the elbow.
As for other cars... I'm working one for a local LT4 TA with AFR 220 heads that currently is putting down 475rwhp through a TH400 and 4,400+ stall... very strong car so this will be a good test. I'm also working a similar intake for my own vehicle as I get time.
Steve...

 

Steve, where do you get the 90* elbow to fit the oe TB, would the mono be to big for this set up

what intakes,the super S, LT4 220, and yours, and is this fitting under the stock hood, how much of the cowl do you have to cut.

how do the intake ,elbow look out of the "box"

Will all the factory cables/bracket work..

What are the pro's & con's over a fully ported LT4 intake & mono to a fully done single plane intake as performance and money "bang for the buck" here

There has to be more people out here doing this.

 

Jeremy- Sent you a PM response from your pm.

If you guys are going to run a stock TB, facing upwards, do a ls1 style. Same connections as LT1, single bore, plug and play. Just will need an adapter from carb to ls1 bolt pattern.

 

Steve,

How many cubes can you actually run that fast thru those heads? 6,000 stall and probably another 1,500-2,000rpm on top of that, those things have to be choking on a 350. Then again 355 cube modifieds turn 8,000rpm on a 500cfm 2bbl carb so that's choking them off too!

I agree on the elbow, I think it's a better way to go vs. a 4bbl type throttle body.

With those rules a sheet metal intake with a big pleanum might be a better way to go with that 48mm throttle body rule.

Bret

 

Why the LS1 vs the LT1 tb , i own the LT1 tb and if i could get an elbow to work with this i could save some money.....and will this fit under the stock hood.

What are some the best intakes to work with the factory pcm ie: 7000rpm

thx

 

Unless NHRA has changed their position on this issue in Super Stock, their earlier interpretation of the rules requires that the throttle body remain in the same position relative to the ports as produced. In other words, a single-plane manifold centering the throttle body on the engine would not be allowed, a sheet metal manifold or a modified stock manifold with the TB at the front are the only options. I've been running an LT1 in Super Stock for two years and that has been the ruling so far. It would be a good idea to obtain a ruling in writing before spending a great deal of money on it.

Running my car at 2960# in SS/IA I've been able to make decent power up to about 8500 RPM. The heads are a limiting factor but they're no worse than the restrictive size of the throttle body. I'm pretty sure that the throttle body is the limiting factor in this configuration although I've never experimented with a larger one.

Good luck,

c.

 

With a Elbow like a Wilson you can't even run the LS1 tb because there is no place for the IAC, you would have to make an adaptor plate. Running a 90mm LS1 TB would really be the only thing that would make sense since it flows like a monoblade, and a stock LS1 TB is only about 900cfm if ported correctly.

Bret

 

It's about as bad as 2bbl motors, 8" of Hg on some of those things at 7800rpm, now that's a restriction!

Porting the heads with the epoxy and welding that you can do would definately move that RPM number up but stock castings have to choke things off a lot faster.


Bret