Carb guys, come inside ... Need Opinion ...

[331TwistedWedge]

Im no carb guru whatsoever ...

just got done porting an eddy performer rpm (7121) dual plain intake ... is this enough to feed afr 165's on a 302? ... just looking at the tiny ports and all the bends in the knees, it looks like it wouldnt flow for shit ...

i know carb setups are different than efi ... its supposively a 1500-6500 rpm intake ... are we gonna weeze those heads? ... hes just looking for bottom end 12's, maybe high 11's down the road ...

if you could compare this intake to an efi intake, is it equivalent to like a cobra intake, maybe a trick flow track heat or better?

anyone ever ran this? ...

thanks in advance :bigthumb

[k062693w]

Throw that intake in the trash and get a Vic jr. !!! All the port work in the world won't help those intakes ...

[331TwistedWedge]

Throw that intake in the trash and get a Vic jr. !!! All the port work in the world won't help those intakes ...

thats what i didnt want to hear ... lol ... thanks for the honesty ... from a porting standpoint, it looks like junk ... only $150 on ebay, that told me everything ...

i only port matched to the heads and blended back an inch ... just about 4 hours of work ...

i dont know much about carbs, but his 600 double pumper sounds too small as well????

[mustang8998]

600, should be okay. Maybe 650.

What else is done to it?

[331TwistedWedge]

its an old falcon ... 65 i believe ... just a 302, hydraulic roller ... trick flow stage 1 cam, afr 165s, 1.6 rockers, (i wont say fully ported) but a blended performer rpm intake and a 600 double pumper ...

im just helping the guy get out of the damn 13's ... friends dont let friends, run 13s :lol:

[mustang8998]

I may be wrong (someone can correct me), but that carb, set up right, should be plenty.

What ignition system is he running? What timing curve?

There's a few more things that can have an effect, on carb size.

[Black Horse]

The right way to do it is get it together and put it up on the dyno for a baseline. You'll know if you don't have enough carb if you are running lean with the biggest jets you can get. The 600 should be adequate for that mild set-up.
It would be great if you could find someone with the Vic Jr. intake and do a swap at the dyno for comparison. Depending on the head/cam/etc. work, the Edelbrock may be the best set-up.

I always advise caution when porting and polishing - without a flow bench for measuring the affects, you may just be throwing effort to the wind. We once ported and polished the hell out of a 2.3L Vega motor for a mini-stocker. After hours and hours of work and one slick path of air travel, when we put it on the flow bench found that the stock head flowed better than the one after all the work we did to it.

[331TwistedWedge]

The right way to do it is get it together and put it up on the dyno for a baseline. You'll know if you don't have enough carb if you are running lean with the biggest jets you can get. The 600 should be adequate for that mild set-up.
It would be great if you could find someone with the Vic Jr. intake and do a swap at the dyno for comparison. Depending on the head/cam/etc. work, the Edelbrock may be the best set-up.

I always advise caution when porting and polishing - without a flow bench for measuring the affects, you may just be throwing effort to the wind. We once ported and polished the hell out of a 2.3L Vega motor for a mini-stocker. After hours and hours of work and one slick path of air travel, when we put it on the flow bench found that the stock head flowed better than the one after all the work we did to it.

dave, nothing more disappointing than working hours upon hours to slow something down ... at least you learned something, you can always take something out of each build and apply it to the next - or in the case of the vega, you learned NOT what to do ... lol ...

head work is tricky ... 1 slight mistake and you can make air tumble or slow the port velocity down ... as far as intakes, they are way more forgiving ... cant go wrong when you port match all of those port openings, just keep the intakes smaller than the heads :bigthumb

looks like he's going to roll with the edelbrock rpm performer and the 600 double pumper ... if it doesnt work out, he can get something else later ... i was just curious and made a post, never dealt with a carb setup before ...

thx for the input guys ...

[Rich]

I went 11.90s with a box stock edel performer rpm, TW heads, and a Holley 650 DP.

It will work but a nice single plane will out performer it at the track.

[331TwistedWedge]

I went 11.90s with a box stock edel performer rpm, TW heads, and a Holley 650 DP.

It will work but a nice single plane will out performer it at the track.

good info, thats what im looking for ... im sure it will work, but there is better :bigthumb

what cam did you run with that combo? ... we thru in the good old trusty stage 1 cam :D

which single plane intake is good? ... is that victor jr too big? ... he has the original torker 1, is that better to use?

[331TwistedWedge]

well im done with it ... kenny came and picked it up ... spent around 6-7 hours on it ... expanded the ports to match the afr 165s ... kept it a shade under the afr ports, they measured 1.95"x1.14" ... looks so much better ... worked the port back a good 3 inches or so and tapered it ... fixed the knees of the outer ports as well ... we may be pissing up a rope on this small intake, but what the hell - its done now ...

i guess we will see what this thing does next month ... i will update this thread :bigthumb

[85_SS_302_Coupe]

Everybody told me my Stealth wouldn't run anywhere near 6k...it peaked on the dyno at 6300 and will pull like a SOB to 7k. I don't know about that intake but the Stealth is no slouch. I wouldn't run any other duel plane intake on the market over a Stealth...this is just based off what i've ran and how it held its own on my 347. If it can breath that well to 6300 on a stroker, it's one BAMF on a 302 which is part of why my car ran mid 12s on the 302.

That said, i'm also switching to a Victor Jr and custom carb, just because SO many people are telling me i'll pick up more top end. I'm holding onto my Stealth though just in case it's all hype.

Remember that part of what makes a lot of duel plane intakes work good is port velocity...if you hog them out you risk losing that and then having air/fuel mixture come out of suspension in those all those turns in the runners and then you have a problem.



Besides, look at this....what's not to love right??? :lol:

http://i229.photobucket.com/albums/ee275/EVIL85SSP/P2150044.jpg

[331TwistedWedge]

i gotcha ... well they are def not hogged out, lol ... still a tiny intake to my eyes ... went from a 1.88" x 1.10" to a 1.95" x 1.14" ...

i dont think there was enough material on these things to even hog it out too much ...

good info though ... keep it coming ...

[331TwistedWedge]

that is a slick ass set up ... very nice ...

[85_SS_302_Coupe]

If Wieand would make an air gap style version of the Stealth for a Ford like they do for the Chevys, it might be the best intake ever made for a 302/347 street/strip engine. I've been waiting for it for years but it doesn't look like they'll ever make one. I've heard from so many diehard carb guys that the Edel Air Gap is an over priced over hyped intake that i've never tried one out...and those same guys told me to save your cash and buy a Stealth and i haven't been disappointed. We were all pretty shocked that an engine with ported stock heads and a duel plane with (probably) too much cam for the intake revved as high as it did without dropping off like a rock but it was barely falling at 6500 so we shut it down.

[Rich]

good info, thats what im looking for ... im sure it will work, but there is better :bigthumb

what cam did you run with that combo? ... we thru in the good old trusty stage 1 cam :D

which single plane intake is good? ... is that victor jr too big? ... he has the original torker 1, is that better to use?


I ran the old "F" cam...car had a ton left on the table!

[85_SS_302_Coupe]

I've ran a Victor Jr on a 302, even though it's a bit overkill, i don't think the bottom end loss was very severe.

[outlaw85]

Everybody told me my Stealth wouldn't run anywhere near 6k...it peaked on the dyno at 6300 and will pull like a SOB to 7k. I don't know about that intake but the Stealth is no slouch. I wouldn't run any other duel plane intake on the market over a Stealth...this is just based off what i've ran and how it held its own on my 347. If it can breath that well to 6300 on a stroker, it's one BAMF on a 302 which is part of why my car ran mid 12s on the 302.

That said, i'm also switching to a Victor Jr and custom carb, just because SO many people are telling me i'll pick up more top end. I'm holding onto my Stealth though just in case it's all hype.

Remember that part of what makes a lot of duel plane intakes work good is port velocity...if you hog them out you risk losing that and then having air/fuel mixture come out of suspension in those all those turns in the runners and then you have a problem.



Besides, look at this....what's not to love right??? :lol:

http://i229.photobucket.com/albums/ee275/EVIL85SSP/P2150044.jpg


We have tried them all and he is correct the stealth (performer rpm a-gap close behind) will out perform any other intake at the track on a stock bottem end 302 with heads and small cam. As far as carb we tried all them also a proform 750 has been the best bang for the buck. Or a custom one of course.

[Drivermod]

NMRA Pure Steet guys are running low 10's NA with Performer RPM intakes and are only allowed to port 1" into the runners. No need for a Vic Jr to run low 12's.

[85_SS_302_Coupe]

NMRA Pure Steet guys are running low 10's NA with Performer RPM intakes and are only allowed to port 1" into the runners. No need for a Vic Jr to run low 12's.

I have to agree with this...but i'll also add that if you're only buying ONE intake, i don't think buying the Vic would hurt, and it'll give you plenty of room to grow. The Vic jr is probably the best intake ever made for a 302 based stroker engine until you get crazy enough to warrant a Funnel Web which is just down right nasty. For a stock stroke 302 though, i don't care what heads or what cam i'd still run the Stealth. Maybe if you built a crazy 9-10,000RPM race 302 then you might need the single plane..

Also remember that my combo is running ported heads....imagine how the Stealth would've performed if it had some AFR 185s or so under it.