Why are more people not running the GMPP intake?
04-20-2005 | 06:57 PM
#21
Staging Lane
Joined: Mar 2003
Posts: 84
Likes: 0
From: Durham, NC
Originally Posted by Rescue Ranger
SPANKY LS1 I am printing that sticker out and its going on my beater's window TONITE LOL
Darren
04-20-2005 | 07:05 PM
#22
TECH Enthusiast
Joined: Nov 2004
Posts: 659
Likes: 0
From: Red Stick, LA
Originally Posted by RyanJ
I read a post that (at 28") a ported GMPP intake flowed 380cfm to each runner. I'd say its worth it. Kurt at W2W just put 1700hp though one with 352cid.
Anywho...no one converts because they are scared to cut an inch of cowl and run speed density.
Here's a pic of a massacred cowl with a single plane intake:
https://ls1tech.com/forums/attachmen...chmentid=30423
Its an FI setup...but an 4-hole is not that much taller...especially if you trim a little and do not run a spacer or plate N2O setup. The space issue is an air filter issue.
Anywho...no one converts because they are scared to cut an inch of cowl and run speed density.
Here's a pic of a massacred cowl with a single plane intake:
https://ls1tech.com/forums/attachmen...chmentid=30423
Its an FI setup...but an 4-hole is not that much taller...especially if you trim a little and do not run a spacer or plate N2O setup. The space issue is an air filter issue.
I guess it would give me an excuse to by a cowl hood.
04-22-2005 | 10:15 PM
#23
that picture of the masaccured cowl, isnt exactly correct. that fits under the stock hood, and requires only slight notching of the cowl aera.
I plan on getting one of those for my car.
I plan on getting one of those for my car.
04-29-2005 | 06:36 PM
#24
Anyone else? I can see why the 90* elbow and LSx style TB would be a restriction due to the hard turn, but a 4 bbl tb on this intake would flow like gangbusters.....
04-29-2005 | 09:43 PM
#26
SSU Moderator
Joined: Nov 2001
Posts: 4,857
Likes: 0
From: Austin, TX
Originally Posted by 69firebird
that picture of the masaccured cowl, isnt exactly correct. that fits under the stock hood, and requires only slight notching of the cowl aera.
I plan on getting one of those for my car.
I plan on getting one of those for my car.
Main Entry: sar·casm
Pronunciation: 'sär-"ka-z&m
Function: noun
Etymology: French or Late Latin; French sarcasme, from Late Latin sarcasmos, from Greek sarkasmos, from sarkazein to tear flesh, bite the lips in rage, sneer, from sark-, sarx flesh; probably akin to Avestan thwar&s- to cut
1 : a sharp and often satirical or ironic utterance designed to cut or give pain <tired of continual sarcasms>
I guess I should have put massacred in quotes.
05-18-2005 | 08:54 PM
#29
Teching In
Joined: Apr 2005
Posts: 16
Likes: 0
Spanky,
I have just had the GMPP manifold and 4 barrel TB put on the LS1 in my 34 ford.
I had no issues with cowls or height obviously but wanted a more traditional look.
The motor is a stock '00 with custom 4->1 headers and a free flowing exhaust. Car runs in SD.
After some fiddling it made 15 hp more above 5000rpm and around 3-5hp less from about 4000 rpm down. It had an LS1 manifold to start with not an LS6.
The way the curve turns at 5000 I would expect the manifold is looking for a lot more cubes, head and cam than the stock motor delivers. This is part of a longer term plan.
The 4 barrel TB offers a lot more progressive throttle response than the stock TB.
Hope this helps as I was struggling to find any info prior to the swap.
cheers
Mal
I have just had the GMPP manifold and 4 barrel TB put on the LS1 in my 34 ford.
I had no issues with cowls or height obviously but wanted a more traditional look.
The motor is a stock '00 with custom 4->1 headers and a free flowing exhaust. Car runs in SD.
After some fiddling it made 15 hp more above 5000rpm and around 3-5hp less from about 4000 rpm down. It had an LS1 manifold to start with not an LS6.
The way the curve turns at 5000 I would expect the manifold is looking for a lot more cubes, head and cam than the stock motor delivers. This is part of a longer term plan.
The 4 barrel TB offers a lot more progressive throttle response than the stock TB.
Hope this helps as I was struggling to find any info prior to the swap.
cheers
Mal
Last edited by 34koop; 05-18-2005 at 08:55 PM. Reason: More info
05-19-2005 | 03:30 PM
#34
Originally Posted by Cammin BeaSSt
Wonder how that would do on a track only 346 revving to 7500?!?!?!
Originally Posted by 34koop
What would you like to see ?
Shawn
05-19-2005 | 03:45 PM
#35
Im have one of these intakes, with an elbow that was custom fabbed to clear the cowl of a F-body. I am hoping that it work as well as I am expecting it to. I am going to be running it on FI, so the added flow and volume of air allowded will just be amplified for me
05-19-2005 | 04:53 PM
#37
Thats the wilson elbow with a ford 105mm TB right?
Nice setup, I dont like the fact you have to cut the cowl though, the one I have you do not have to do that with, it is however sheetmetal.
ed
Nice setup, I dont like the fact you have to cut the cowl though, the one I have you do not have to do that with, it is however sheetmetal.
ed
05-20-2005 | 08:57 AM
#38
Yes, it is but the TB is actually a 90mm unit. 
The elbow and manifold can be cut down further to fit under the cowl. This was my first time dealing with this kind of setup and I wasn't sure how far I should mill the pieces ... more can be milled safely. 
The elbow and manifold can be cut down further to fit under the cowl. This was my first time dealing with this kind of setup and I wasn't sure how far I should mill the pieces ... more can be milled safely.
05-20-2005 | 11:18 AM
#39
Originally Posted by 69firebird
Thats the wilson elbow with a ford 105mm TB right?
Nice setup, I dont like the fact you have to cut the cowl though, the one I have you do not have to do that with, it is however sheetmetal.
ed
Nice setup, I dont like the fact you have to cut the cowl though, the one I have you do not have to do that with, it is however sheetmetal.
ed
PM me were you got the elbow..... i think i know but just want to be sure.... looking at doing this also.
Kyle
