Has anyone here put this manifold on their car? If so, will i have any problems installing it? JPrevost, i know you just ordered one also right?
I have already ordered slp 1 5/8 headers, did the ultimate tbi mods, and gonna order msd ignition and wires together w/ the manifold and install everything at once. I am not planning on changing the heads and cam on this motor, so with this combination will it be drivable? or will I need a custom chip?
One more question, Should i go with the rpm air gap manifold or the regular rpm manifold?
thanks.

------------------
Pat Hirsz
www.iit.edu/~hirspat/MyPage2.htm
88 305TBI
Mods:Hooker Aerochamber 3" exhaust, gutted kitty, March pullies, no smog, 180 thermo,
14x4 K&N, 3.42 gears,
Eibach springs with KYB's all around,
Harwood cowl hood, Z-28 wing, fresh paint(black)
120,000 miles, 5spd, T-tops
Run a best of 16.7 @85mph before gears, slp headers on its way

92 RS, 305TBI, auto, 3.08 gears, 180 thermo, glasspack (no muffler)

 

um not to burst your bubble, won't the larger Performer RPM intake ports cause a step when they reach the small TBIs intake ports?

------------------
-Tas
'89 Formula WS-6
[soon to be Torch Red with black hood and headlights =) ]

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

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

 

Yeah, you don't need a Performer RPM for a 305 of your status. Get the Performer, which can feed a 350hp 350cid without problem WITHOUT killing any low-end.

 

Which performer should I get, the one w/ egr or w/out egr? I don't have my smog pump anymore, so if i get the one w/out egr will i find any problems while installing it? I also don't have a/c anymore.

p.s. would the torquer II be a better choice?

 

Tas is right about the performer RPM. It is ment for upper rpm power and the L03 heads, cam and TB all want low end torque. If you keep the 305 then the performer is a great intake. Pablo should be posting something real soon about the torker II was designed for 2500-6500rpm range, so that is even more wild. If you are keeping everything on the mild side then go with the performer to get the most out of it.
I'm going with the RPM because of future cam swap this summer. If I didn't plan on swapping in a cam I would have bought the performer. Get it with EGR if the price isn't different. The EGR helps with gas milage, the ECM is able to advance the timing more at higher rpm without worry of detonation. If you go w/o EGR then you might want to consider a custom chip.

------------------
, Jon (91 RS too many mods to list)

 

Thanks, I'll go with the one with egr then. I guess i was so into the rpm intake because it made like 15 or 20 more horsepower when they changed it from the performer intake on a stock engine just with headers (305) and a qjet carb. But i don't want any drivability problems, so i'll go with the performer intake.
p.s. When i get the holley adapter, will it act as a TBI spacer as well?

 

A lot of you guys are saying that its better to go with the performer carb intake and an adapter, but that intake for our heads (87 and up) costs 225 at jegs plus another 50 for an adapter. the tbi performer intake is 208. Summit Racing has the performer intake for pretty cheap, but its for big blocks only. Is that the intake that you guys are talking about that i should get?? I would really like to order this today or tommorrow, thanks for your help.

 

if you're gonna get a performer get the performer TBI. its tuned for the TBI whereas the performer with an adapter isn't.

------------------
-Tas
'89 Formula WS-6
[soon to be Torch Red with black hood and headlights =) ]

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

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

 

I think this is what your looking for at Summit. Edelbrock# edl-3701 for149.95 or edl-3704 for208.95.
Go to www.summitracing.com and look for them.

[This message has been edited by steve8586iroc (edited March 10, 2001).]

 

When i looked up the 3701 at Jegs it said that it will not fit 87 or later cast iron or bowtie cylinder heads. That's why i'm confused, summit doesn't warn you about that. I'm assuming I have the cast iron heads right? I'll just go with the TBI intake.

 

the two bolt holes on the manifold are at a different angle on the earlier heads
takes 5 minutes with a dremel to correct the problem just need to change the angle of the bolt holes a little

if im not mistaken, the performer rpm is the performer but with just a taller plenum

it will meet up to the factory heads just fine

if i were you id just go to the local autoparts store, go to their performance aisle and pick up a performer
throw an adapter plate on there and go man go

 

Thanks for clearing that up Pablo, you changed my mind at the last minute.

 

At P.A.W. they have almost all the edelbrock intakes on display. The peormer RPM' intake ports are bout .2" taller. At the auto part store pull the performer and the RPM out of the box and see for yourself.

 

The performer RPM isnt a performer with a taller plenum, the runners are larger and generally the whole thing is different.


Leave some time to make sure it fits right and the ports line up correctly. Edelbrocks quality control is more than terrible, its non-existant.

 

I meant changing my mind about going from the performer tbi to the performer carb and an adapter. That way, later on in the future i can just swap the manifold to the rpm w/ a custom chip (because the rpm has no egr) and see what the difference is. The rpm with the costume chip should be good for another 20 hp and 20lbs/tq on the stock heads and cam over the performer. The ports on the rpm intake might be bigger then the stock heads, but still a 20 hp difference is a 20hp difference which is well worth experimenting with. If you read this article you'll see what i mean:
http://www.inter-scape.com/ray/305buildup/page1.jpg
change page numbers on top of browser to view other pages

 

I forgot to ask, should i get the installation kit that comes with the edelbrock performer manifold 3701 or should i get the one for 87 & up heads? Or should i not get one at all? thanks

 

REPEAT: The RPM is NOT a taller Performer!!! IT can flow cleanly up to/through 6500rpm the runners are so big. The problem with installing this manifold on most heads is that the runners are so big, they do not match the (smaller) intake ports of most heads, even ported ones. This mismatch causes more bad than good as velocity changes = turbulence around mismatched ports and is VERY BAD!!! THAT is why you hear of GASKET MATCHED ports between the head and intake combination...

MOST vehicles will runn MUCH better with the RPM manifold instead of the Torquer II becasue the RPM is a dual plane manifold and flows as much airflow as the SINGLE PLANE Torquer. You will have MUCH more low-end/midrange with the RPM over the Torquers, whether you are TBI'd or carbed... The vacuum signals and runner sizes are better suited to the 6500rpm or less motor. If you are tuned for 4500-6500rpm ONLY and NOT A DAILY DRIVE, the TORQUER may be better, but doubtful. You can simply make the same top-end hp/torque with the RPM manifold and not loose ANY low-end torque, as you do with the Torquer manifolds. Why use a Torquer? To be "cool" and they do look a little better... But you will loose over a RPM every time!!! IMO.

Just get both of them side-by-side and look at the runners... End of story...



[This message has been edited by FastBroker (edited March 12, 2001).]

 

thats why Basset Racing and his chevelle gained 2 mph with a torkerII over the performer rpm


and i said IF IM NOT MISTAKEN
SO I WAS MISTAKEN relax


its like people are itching to prove anything i say wrong, get lives

 

It's Torker, not Torquer. I'm not trying to be an *** , I'm just tryen to edumacate .
While I'm at it I might as well post the other stuff: it's a lot, not alot and single plane, not plain (glad to see a lot of people doing better with this one). I love spell check, without it I'd still be in middle school.
Pablo, you are like a god to TBI and if we can prove you wrong we feel like we actually know something . Let's try and not get so touchy, this might be a tech forum but TBI is a tight group.
About the intake, I think they all sound better than stock . If I had a 305 I would get the performer even if I did do a radical setup. The RPM would go on just about everything as large and larger than a 327. Then I'd get a torker on a race only engine of 350 and larger. I don't like the idea of a single plane on a 305 because the 305 doesn't exactly have a bore to stroke ratio that wants upper rpm power. The longer stroke wants low end power/torque, the 3.75" bore isn't exactly looking for rpm power. Pablo, I think you have a 305 with the torker, how do you like it? Do you think in most cases that the performer is better on a 305? BTW, the RPM is a different intake, it is larger and that's great for large bore engines.

------------------
, Jon (91 RS too many mods to list)

 

Pablo, I didn't mean to "prove you wrong" but to educate people about the RPM vs Performer differences. The Edelbrock catalog is free, 1-800-FUN-TEAM, I believe.



[This message has been edited by FastBroker (edited March 13, 2001).]

 

FB, why did you take all that stuff out of your last post? He flames me for not doing petty shiet on my car like tunes-ups. I have better things to do like study and work... My car is not anywhere near my #1 priority in life.

 

I'm a relative newcomer to TBI, but I've messed around with computer controlled Q-Jet cars, including F-Body's and G-Body's. Right now a 406 I built runs 12.60's in a friend's 87 442 with AC, ALL the emissions controls, computer controls etc. Just to let you guys know I'm not mouthing off with no experience to back it up. As for intakes.. BY FAR the BEST all around intake for a small block chevy that needs to have an EGR valve is the Weiand #7525 single plane. It has EGR provisions and a Spreadbore carb mount. It's $180 or so thru Summit. Not many people know about it. It's NOT too much for a mild 305.. in fact a bonestock CCC Q-Jet equipped F-Body picked up almost 3 tenths in the 1/4 with one. It's on the above 442 which eats LT1's, and ALOT of LS1 cars for lunch... After buying the intake you'll need an adapter for the TBI. www.howell-efi.com sells it for $50. It's for Q-Jet intakes to a 2" Throttle body. I don't see where the very small size difference would matter to the stock Camaro TB. For that matter find a used 454 GM TB and drop it on. I'm building a car with a ZZ4 roller cammed 350 w/ the 7525, 454 TB, truck ECM and PROM, and down the road a custom burned chip.


HTH
Chris

 

hey Chris, thats they first intake on my efi page. check it out

------------------
-Tas
'89 Formula WS-6
[soon to have Hooker 1-5/8" 50 state legal headers installed]

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

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

 

Hey, Tas... Took it out because I kinda feel bad for him. I don't hold grudges long, I guess. Ya learn that as you get older. Plus, Pablo may be my Boss someday... Can't burn any bridges!!!


[This message has been edited by FastBroker (edited March 14, 2001).]

 

I ordered a Performer with egr this winter, onlt to realize that the egr would be in the way on this manifold.I was going to make my own adapter out of aluminum, but it would have to be pretty thick to clear the egr.So I sent it back and ordered a performer TBI.I think it will be ok,the runners are not as small as they look in the pictures.I'll put it on when it warms up.I allso bought hedders and a 3" cat back.Buy the way, my first mod was a non drop open element, and I picked up 2 mph in the 1/4 mile.I know that was a differnt thread.

 

Yep, the Performer is a BIG step up from stock and fine for most mildly built (or stock ) street engines. Runners plenty big enough for a DDriver.

 

What do you mean the egr was in the way? I would appreciate if you could elaborate a little more. I already placed the order on the performer w/ egr and a holley adapter. Gonna be putting it in this weekend. I thought i'm not gonna have any problems?