LS1TECH - Camaro and Firebird Forum Discussion

LS1TECH - Camaro and Firebird Forum Discussion (https://ls1tech.com/forums/)
-   Generation IV External Engine (https://ls1tech.com/forums/generation-iv-external-engine-130/)
-   -   Intake setup for L92's..thoughts.. (https://ls1tech.com/forums/generation-iv-external-engine/1022366-intake-setup-l92s-thoughts.html)

the_merv Nov 22, 2008 01:20 PM

Intake setup for L92's..thoughts..
 
Hopefully someone has a setup like this and can give some good input..:)

I currently have the L76 Intake on my L92's.

I was thinking of going to a Victor Jr. for them Heads, keeping it EFI and getting some Fuel Rails for it, and then using my 90mm Throttle Body with this Elbow..
http://www.proheads.com/webshots/l92...2edel28455.jpg
https://static.summitracing.com/glob...edl-3847_w.jpg

The Cam I have is a 243/247, .621/.612, 114+3 LSA
Compression Ratio is about 10.7:1

Does anyone think that I will see a gain going to that setup from the L76, and where do you think it would be?

rotary1307cc Nov 22, 2008 06:02 PM

I have read that the GMPP/Vic. carb style manifolds' flow really suffer from the addition of elbows.... and that guys running no elbow and a 4 barrel TB like an accufab are having good luck

there looks to be some good intake options for the l92 on the horizon

on your setup with the l76 currently, how does the car feel?? when does it peak and start deminishing??

NemeSS Nov 22, 2008 08:12 PM


Originally Posted by rotary1307cc (Post 10529577)
I have read that the GMPP/Vic. carb style manifolds' flow really suffer from the addition of elbows.... and that guys running no elbow and a 4 barrel TB like an accufab are having good luck

there looks to be some good intake options for the l92 on the horizon

on your setup with the l76 currently, how does the car feel?? when does it peak and start deminishing??

but thats usually associted with the fabricated sheetmetal elbows,
the ones like pictured actually flow very well, and merv has a 402 iirc,
its not like hes short on tq or hp.
i personally prefer the wilson type 90* elbows, i would not use one the fab. shtmetal in my project

rotary1307cc Nov 22, 2008 11:24 PM

I actually have the elbow pictured.... it is a nice piece

just wish some one like Richard @ WCCH or someone else would mess with the carb manifold/elbow combos and get some solid #'s out there.....if they ever have a spare chance, haha

not that it is relevant, but i am impressed with the job Edelbrock does on powder coating stuff, IMO

the_merv Nov 22, 2008 11:36 PM


Originally Posted by rotary1307cc (Post 10529577)
on your setup with the l76 currently, how does the car feel?? when does it peak and start deminishing??

I shift at 6500..we were logging runs till 7000 when we were tuning it, and past 6500 was the area that it was starting to drop power. It's got a string mid range, but I want the top-end to breathe more, and I figure the Victor Jr. is a good way to get there, and that Elbow clears the stock Hood and Cowl without a problem..:)

CamaroRick Nov 27, 2008 11:13 PM


Originally Posted by the_merv (Post 10531173)
and that Elbow clears the stock Hood and Cowl without a problem..:)

You have to modify the flange the bottom bolt holes are for edelbrock specific tb, I had a good welder drill and fill in the lower holes and i redrilled them in the proper location and installed time serts to make them stronger. also the top of the flange has to be cut off and the center brace on the stock lt1 style hood must be cut out for clearance. ohh and the iac sensor's flange must be flipped so the sensor's connector faces downward.

I cant tell you anything on it gaining anything over an l76 yet as i tore the heads off to put lifters in it. car made 470rwhp on l76 with valves floating at 6200rpm, I put better springs in it and the car would pull past 6200, trapping 127mph, Im hoping for 13*'s with this setup

WizeAss Nov 29, 2008 08:28 AM


Originally Posted by NemeSS (Post 10530202)
but thats usually associted with the fabricated sheetmetal elbows,
the ones like pictured actually flow very well, and merv has a 402 iirc,
its not like hes short on tq or hp.
i personally prefer the wilson type 90* elbows, i would not use one the fab. shtmetal in my project


Fabricated elbow in my sig.... and a 236/248 cam with a TH400/9 inch setup.28 degrees of timing.

http://i24.photobucket.com/albums/c1...236-236cam.jpg

Rapin'Ya Nov 29, 2008 10:23 AM


Originally Posted by the_merv (Post 10528379)
Hopefully someone has a setup like this and can give some good input..:)

I currently have the L76 Intake on my L92's.

I was thinking of going to a Victor Jr. for them Heads, keeping it EFI and getting some Fuel Rails for it, and then using my 90mm Throttle Body with this Elbow..
https://static.summitracing.com/glob...edl-3847_w.jpg

The Cam I have is a 243/247, .621/.612, 114+3 LSA
Compression Ratio is about 10.7:1

Does anyone think that I will see a gain going to that setup from the L76, and where do you think it would be?

You generally lose a little low end but nothing that will hurt in the range of 50hp down there. A tighter LSA generally will bring it back and also free up reversion up top.

94 guy Nov 29, 2008 10:59 AM

camaro do you have a pic of under the hood?

94 guy Nov 29, 2008 11:09 AM

rick never mind i saw one. what springs are you running?

CamaroRick Nov 30, 2008 07:06 PM

Jeff grannysshifting ordered them for me, I dont know the manufacturer, but they are 420lbs open dual spring

the_merv Nov 30, 2008 11:20 PM

I guess Edelbrock plans on releasing this in early January.. this was the one that I had found doing my Research..
http://www.proheads.com/webshots/l92...2edel28455.jpg

1fastxz Feb 23, 2009 07:29 PM

Anyone with this intake set up yet?
Or where you can get it?

firefighting1101 Feb 23, 2009 07:46 PM

sheet metal intake!

00Formula00 Feb 23, 2009 10:06 PM

Why not wait until the FAST 102 comes out, if it ever does :eyes:

SIC LSX Feb 24, 2009 01:45 AM

user dlove went from l76 intake to GM EFI/Carb intake and ran the same time in 1/4 with the l76 setup! So he went back to the l76 setup!

He had this
http://i125.photobucket.com/albums/p...c/IMG_1971.jpg
Went back to this
http://i125.photobucket.com/albums/p.../IMAGE_015.jpg

I was all about this setup but not anymore!

SIC LSX Feb 24, 2009 01:45 AM

I would wait until april and get FAST 102mm and port it! I will be a good 20hp more

fastGBcamaro Feb 24, 2009 06:44 AM

I am glad to see that someone tested this. I was also going to change out my L76 for this style, but now I don't really know.

SIC LSX Feb 24, 2009 09:35 AM

april 09 FAST 102mm

dlove Feb 24, 2009 09:41 AM

Dan is right, I actually slowed down with the GMPP. Probably a cam issue. I even spun it 7300+ and it still wasn't as fast.

I ported my L76 intake this time and it pulls much better up top. I plan on doing the FAST intake/tb setup once it comes out.

The L76 unported choked up the car pretty bad above 6400


All times are GMT -5. The time now is 06:27 PM.


© 2026 MH Sub I, LLC dba Internet Brands