Justin96z28

Not a newb to the LT1 scene at all, more of a reader than a poster also. I am picking up a BRAND NEW NEVER USED Edelbrock LT1 Intake and 58MM TB for 400$ for the both of em too good to pass up really so thats why I am getting it. Would I see any worthwhile gain at all with this swap or should I wait to put this on with ported heads??? Right now I am running 355 CC503 Pacesetter LT's Borla Catback Elec WP, Stock OPTI MSD Cap/ROTOR, 1.6's, yaddie yaddy yadda. Motor has 5k on the rebuild put on 370rwhp 363rwtq on pcm4less dyno tune. So would it yield anything or should I wait to put this on with some ported heads???

96capricemgr

iTrader: (1)

TB might be worthwhile but the intake is a bad joke, some indication it could hurt power. I wouldn't buy that pair for $400 can you get a refund?

That TB needs modification to work right and an A4 requires a retune to run a bigger TB.

fbody_brian

Doubt it.
You might see a slight improvement with the TB, if your current one is choking you down, but dyno numbers seem to indicate that the edelbrock intake loses power over the stock one. It sure looks nice though.

Justin96z28

T56 here, no slushbox for me. LOL

Justin96z28

Didnt buy it yet, just have the chance to pick them both up for 400$... Figured it was worth it for that price tag....

96capricemgr

iTrader: (1)

If you could in clear conscience flip the intake for $200+ it might be worth it but most of us know it is a bad part, well constructed but possible power loss.

BALLSS

several years ago (at least 15) our local SS club was hosted by Edelbrock to tour their facility. Vic himself spoke to our group. The intake was in development then....and when pressed for #'s.....the reply was "still in development"...in the end it made no more power than stock and some feel it lost some. YMMV

The 58 mm TB is ok but as Caprice says will likely need some "modification" to idle right as most do. My $02 is get a stock TB bored to 52 mm and save the coin for other mods

LT1BADZ

iTrader: (1)

Who ports the stock TB? I would like to get mine done. Wouldn't new blades be required?

ahritchie

iTrader: (1)

There used to be a couple vendors on ebay selling stock TBs opened up to 52mm and installed new blades....but looks like they stopped selling them. I have one on my car, and no TB issues to report like many the aftermarket ones.

bufmatmuslepants

iTrader: (3)

Hard pass.

NewOrleansLT1

$400 ain't that bad on the grand scale of things.. But if you don't need the intake then just get the throttle body for $200

Justin96z28

Yea he wont sell just the TB alone I tried....... LOL... Guess I should just pass on it then and buy his borla catback for 250$ instead lol.... Thats a complete wash for me cause I can sell my magnaflow catback for roughly the same cost. LOL I hate the magnaflow soooo badly

BALLSS

I had mine done like 15-16 years ago. David Kudos IIRC for $150

yes it involves new blades and bearings.

Don't know who does them now but suspect someone does.

steveo_

hmm, you mean that article where they dropped the intake on a stock head 210/220 cam marshmallow and didn't note a power gain?

the article even states that the intake is designed for higher flowing edelbrock heads, or ported stock heads, but they'd just 'see how it did with stock heads anyway'.

the article also measured a substantial power gain when going to a 52mm edelbrock throttle body ........ throwing all their results into question.

later articles don't do a proper a/b comparison with a stock intake, so don't have any validity either.

it's possible some engines will respond favorably to the altered runner length and not others.

maybe it's underrated.

just sayin'

i'd use one if i had it

96capricemgr

iTrader: (1)

Their full heads/cam/intake/TB package makes less flywheel HP than people expect from ported GM stuff at the damned tire.
The heads are stock replacement. Not larger they are 170cc which is about what LT1 heads are. The magazine is making **** up to cover for an advertiser.
Bet the stock intake with 52mm TB test wasn't published because it told an interesting story.

Back when I had the original AI 190cc heads and cam setup, cam being 226/234 .565/.565 I ran 12.7 on street tires with the slicks and tools in the trunk immediately upon arriving at the track after a 150mile drive to get there. The edelcrap package runs 12.8 on the jug in their "killer whale" Caprice build.

The plenum volume is smaller than stock and guys with modified engines often sight the small plenum volume of the stock intake as an excuse to go to a converted carbed intake.

When Lingenfelter was alive he and Edelbrock ADMITTED DEFEAT on a simple bolton LT1 intake improvement. When GM stopped offering the LT4 intake Edelbrock slapped an offering together to make use of the attention the community was paying to the disappearance of the LT4 intake.

KW Baraka

iTrader: (7)

$400 is pretty damn bad for parts that won't yield $150 worth of improvements.

Me? I'd be inclined to get the TB but I'd completely pass on the intake.....wouldn't even pick it up to sell to someone else; might get stuck with it.

Just understand, that the 58mm TB will require tuning of the PCM AND porting the 54mm intake ports to match the TB. As several have indicated, a port stocker (to 52mm) or an aftermarket 52mm TB would be an easier and less costly way to go.

KW

steveo_

i'll buy that

Dirty_Bird

Id buy that in a heartbeat, tb goes for 300 alone. Id sell the intake for 250 or so and recoupe some money

Justin96z28

Yea stuck in a rock and a hard place with it lol... But my opti just went last night so I get to do all that fun work this weekend now too.... So ya'll sure I should pass it up I got him to go to 350$ for everything..... LOL... And @Steveo_ just the man I am glad posted, I need to PM you about some tuning help.

96capricemgr

iTrader: (1)

Are you willing to either guinea pig the intake or sell it to someone else who doesn't know better?

Have you read up on the mods most aftermarket TBs need to work right?