58mm tb waste of money?

[95LT1Z28]

Ive been following the ltx buildup in the gmhtp magazine and I was kind of let down when they added the edelbrock intake mani and 58mm tb and picked up lik 3 hp. The engine has edelbrock heads a cam and a 355 rebuild, forget exact numbers but shouldnt an intake manifold and tb unlock a little more power than that, especially for the $800ish bill for the two pieces?

[KissMyWhtSS]

I believe the emphasis in that article was that the Edelbrock Intake Manifold wasn't worth it.

Do you remember the specs on it? Was the intake manifold before bone stock with a stock unported throttle body? Also what heads/cam?

[95LT1Z28]

They were the edelbrock e tec heads and the cam was a cc306. The first run with it was the edelbrock LT1 intake mani, with a 52mm. Then they ported that mani to the LT4 specs to accept a 58mm and also port matched it. My point is your spending alot of money but not getting to much in return. Maybe with better flowing heads it would help more.

[Puck]

The intake and throttlebody will not be a restriction for a stock cube engine that only spins 6k.

If you were a 383 stroker with ported heads and a big cam that saw 6700+ rpm then it would be a good time to look at the intake and a larger TB.

[Milk Man]

If you were a 383 stroker with ported heads and a big cam that saw 6700+ rpm then it would be a good time to look at the intake and a larger TB.

hey thats me! lol, i read that article a while back when i was thinking of getting the intake and decided against it.

[Counted Out]

I never understood why alot of people upgrade the throttle body as one of their first mods - you don't really need to until you're making alot more power than what our cars make with just bolt-ons.

[Brandon]

edelbrock heads aren't much better than stock.

[95LT1Z28]

Yeah you need to make probably about 380+hp to even need a tb i guess. Its funny though, every mustang owner i see has a bbk tb, either theyre very restrictive or they do it because everybody else has it.

[ksmyss]

a big throttle will not hurt you if it's too big. they aren't like the carb motors. the motor will only let in as much air as it can handle.

we did a test on a buddies car with a 305 cam and home ported heads. 2 dyno pulls witha stock tb and 2 pulls witha 58mm tb. his intake was already opened up for the 58mm tb. he gained 7 hp and 8 ft lbs across the entire rpm range.

fwiw i was running a 58mm tb on my bolt on setup.

[shutzero]

its been proven that its better to get your heads and intake manifold ported by someone like advanced induction or lloyd elliott, rather than spend that ridiculous amount of money on that edelbrock stuff...especially when the port jobs yield way more power

[95LT1Z28]

Yeah, I would rather send the stuff out then buy edelbrocks stuff, your definitley right, the LE stuff is definitley better!

[catchmyz]

If anyone has a 58mm that thinks its a waste of money i'll gladly take it off there hands, don't think the ported stock to a 52mm is keeping up anymore. BTW not trying to hijack the thread but does anyone know the difference's between a Tpi throttle body and a LT1 throttle body.

[ksmyss]

If anyone has a 58mm that thinks its a waste of money i'll gladly take it off there hands, don't think the ported stock to a 52mm is keeping up anymore. BTW not trying to hijack the thread but does anyone know the difference's between a Tpi throttle body and a LT1 throttle body.
i think it has to do with the tps

[Toronto_LT1]

i'll stick with my stock TB until i get a motor build.

[NebWS6]

its been proven that its better to get your heads and intake manifold ported by someone like advanced induction or lloyd elliott, rather than spend that ridiculous amount of money on that edelbrock stuff...especially when the port jobs yield way more power


precisely why I don't know why they(or whoever) buy's that crap, and then write an article about it. Those guys are on the boards too, so I can't imagine why they would do that stuff, when all the info is out there to write an article about some products that do make power... :monkey:

[AChotrod]

I wont hurt and will eventually help as you build. I run a 58 and make great power on a stock short block with LE ported heads/intake and custom cam. I bought my BBK brand new on e-bay for 250. If you plan on good H/C/I its worth it.

[95LT1Z28]

Yeah I agree AChotrod, with a h/c/i it would benefit, but for a strictly bolt on car, its a waste IMO.

[AChotrod]

True just dont waste money on a 52 then buy a 58 down the road. If you do buy one just get the 58 since it wont hurt performance.

[SSSC]

Before you spend money i would look at the IHRA Top stock classes.They are running a Stock 48mm TB and running NA low 10s on the lt1s in those clases.

[AChotrod]

That also has alot to do with set up!!

[SSSC]

YouTube - Top Stock St Louis 3-29-08 Eliminations round 1

[enjoi355]

what do those lt1 have?? crazy stroker with heads and cam?? completely stock?? or somewhere in between??