Going to change manifold on my '92 305 TBI firebird. Should I Just go edlbrock Tbi manifold for $259 or Torker2 for $100-+ with a adapter plate? Price of TBI manifold w/easy install VS. cheaper Torker 2 with more work to install? HELP!!!!
Thanks!

 

$259!!!! PAW has em for $205.95


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-Tas
'89 Formula WS6

305, TBI, auto, 14x3 chrome flat based open element with K&N, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

Super GRK_Taz World
EFI & Intake Options
AOL IM: superGRtaz
ICQ 82881207

 

the torker II is awesome
i love mine

 

Hate to tell you but the TBI intakes are require a few mods also, especially if you go with the Holley Projection. However, the Edlebrock will not flow as good as the Holley and the Torker II is too much flow for a 305 especially if all you have is minor mods. THe Holley is rated from idle to 6000rpm. The Torker might would have helped out in the upper rpms on my motor but I can pull to 5500 rpm while the engine is under load not spinning the tires. The stock intake would barely let me get to 5000 rpm. Another thing to look at, your motor won't last long reving it past 6000 rpm a lot and your just asking to blow something apart.

The Holley intake is $197 from Summit Racing.


The Torker II is rated from 2500rpm to 7000 rpm. Sorry Pablo but I have to disagree with this manifold being a good manifold for a 305 motor. Maybe a 350hp motor but not a 170hp 305. The redline on a stock 305 with heads is around 5000 rpm. That manifold will of course be better than the stock manifold but will kill the low end torque compared to a intake rated for idle to 5500 or 6000rpm. Also you will not have EGR provisions with a lot of carb intakes which is fine if you have a chip to disable the EGR programming, if not expect to get a 32 code when cruising down the road.

If you decide to go Holley you will have to do some minor mods and get a new EGR valve...wasn't fun for me but I can tell you what mods would be needed to complete it with ease. The Edlebrock I heard is much easier yet doesn't flow as well.

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1988 TA 300+hp 350 w/ TBI and Holley TB unit, Holley projection intake,
WC T-5, 3.42 gears w/ Auburn posi. MSD 6A, edelbrock TES headers, dynomax 3" cat and cat-back system, ACCEL coil, polyurethane bushings all around, aluminum driveshaft, Mr. Gasket open air cleaner.

1993 S-10 w/ 4.3L V6 TBI, slightly bigger cam, Mild polish job and 3 angle valve job on heads, Edlebrock TES headers, Dynomax cat back, MSD 6A, ADS chip

2000 Kawasaki KX 125

 

well
i know this much, with my big cam, ported non swirl port heads, and torquer 2 single plane, i have far more power at every point in the rpm band than when i was stock including low end

 

I agree you do, I was comparing the torker to a milder intake manifold on a stock or mildy modified engine (exhaust, ignition). Your big cam and non swirl heads allow you to breath much more on upper end therefore the Torker may have been the best for your application but not on Zar's unless he has done the same. Even if he gets the Torker it won't let him use the full potential of the Intake unless he changes to heads that will allow the motor to rev up to 6000 or more.

The cfm carb rating is something like 750cfm for the torker II. Would this account for the reason you have your pressure very high (excluding the other upgrades) compared to the pressure everyone else is running. If I ran that high of pressure (currently only 15psi) I would be running way to rich and I'm putting out more hp...so why the high fuel pressure and huge intake? I'm just curious how you can run that much without fouling spark plugs or are you using smaller injectors which requires the pressure to be higher...are they 350 injectors? Would bigger injectors and less pressure allow the car to run the same?

Post your engine mods or put it on your sig..didn't you just rebuild your engine and stroke it?

 

What did you have to do specifically to make the Holley Projection TBI work properly?



PICS! JPGS DAMNIT!

So have you been happy with the Holley then? What DON'T you like about it?



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Kelly 'GhoSSt' Rosato
1996 Impala SS, 383 LT4 (14.65 up here, 13.24 lower)
1984 Firebird, +.060 350 (Vortech Heads, HOT Cam, and schtuff)
1993 Caprice, 5.7 TBI (stock . . . FOR NOW)

"And if you wrong us, shall we not revenge? Revenge. The villany you
teach me, I will execute, and it shall go hard but I will better the
instruction."

Shylock in Act III, Scene I of 'Merchant of Venice' by William Shakespeare

 

Im using 305 injectors at around 20 psi and the chip is very maxed out on the top end fuel wise, you have a table to put in a projected air fuel ratio (not the real thing at all its just what the ecm calculates from the main table that i have maxed out) and i have it down to 9:1 afr and this is with 20 psi to those injectors. If the chip were stock i wo uld drown in fuel at idle of course i had to raise the pressure that much to get the top end power out of it i wanted and then cleaned up everything down below. I ought to get it dynoed but its really putting out some pretty good power especially with the 670 throttle body, 3700-6000 rpm goes by in a nanosecond

the engine isnt stroked or anything fancy, i found a rebuilt 305 in a parts car i bought for 500 dollars, it was .030 over so that makes it a 310 the only thing i used was the short block
engine mods are as follows

#416 305 H.O. heads
generously ported and polished by me ,crane springs, completely rebuilt and slightly milled, I estimate a hair over 10:1 cr
1.6 stamped rockers
214/224 cam with the 1.6 rockers its .474/.498 lift
port matched Torquer II (i raised the roof of the head intake ports and the manifold to match)
turbocity tbi spacer that i ground to use the 670 TBI manifold
stock 305 TBI injectors
vortec pickup truck fuel pump
NOS external fuel regulator @20 psi
open element aircleaner
edelbrock TES 1 5/8 headers, no cat, 3" exhaust
and thats about it i think, custom programming by me of course

the car has some other mods like a 5 speed tranny now, and 3.42 rear
its very quick


As a rule, i think everyone with TBI cars should do exhaust first including headers
once that is out of the way, I wouldnt say NOT to use a torquer II.. in fact i think in theory its a good idea. Remember carb cars lose alot of their low end because they lose vacuum signal with a single plane tbi doesnt have that problem. I think the torker II will just give up a teensy bit off idle but really pump up the upper rpm band. would it help or hurt? i dont know, the cam is pretty anemic in the lo3. If i had to wager id say the torker II would improve times substantially after exhaust is done and probably give up just a little bit off idle

To me, dual planes are a waste of time unless you just wanna build a low rpm grocery getter. Id get the torker and upgrade the cam aswell, thats one thing i would change though i would go with something like an LT4 hot cam instead of this cheap flat tappet thing i got. Rollers are where its at

Pablo

[This message has been edited by Pablo (edited October 25, 2000).]

 

Thanks for the info!

I think the LT4 hot cam would go great with that manifold. I was talking with another guy who has the LT4 and it says it has a lot of upper rpm power which is where your intake really comes to life. Let me know when you put that cam in...that would be interesting.

You going to get the 350 injectors or stay with the 305's? Got to love that 5-speed, I know I love mine but I'm going to a 6-speed for my next tranny. The 5-speed makes it easier to keep the rpms up into the hp range a lot better than an auto. I would have liked to tried the torker II on my motor and dynoed the two intakes to see the real differences...too bad I'm not rich .

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1988 TA 300+hp 350 w/ TBI and Holley TB unit, Holley projection intake,
WC T-5, 3.42 gears w/ Auburn posi. MSD 6A, edelbrock TES headers, dynomax 3" cat and cat-back system, ACCEL coil, polyurethane bushings all around, aluminum driveshaft, Mr. Gasket open air cleaner.

1993 S-10 w/ 4.3L V6 TBI, slightly bigger cam, Mild polish job and 3 angle valve job on heads, Edlebrock TES headers, Dynomax cat back, MSD 6A, ADS chip

2000 Kawasaki KX 125

 

im staying with the 305 injectors these things can take upwards of 50 psi and ive had really good luck with them so far so they are staying for now

i dont know if or when ill do that LT4 cam swap maybe if i run across one or one like it on the cheap ill do it i think i can get 15-20 hp with one