Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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I have a edelbrock performer EPS on my car now, my buddy gave me a Performer RPM. My question is will it be worth changing intakes?, will I even notice a difference? my car is a 82 firebird with a 305 LE9 out of a 84 chevy 1/2 ton truck, its got a 1805 Edelbrock carb, flowtech 1" 5/8 headers and 3" exhaust with a flowmaster muffler.
I thought most TGO folks agreed that the Performer wasn't worth the money, but the Performer RPM was the intake of choice? At least that's what I read over the years.
I thought most TGO folks agreed that the Performer wasn't worth the money, but the Performer RPM was the intake of choice? At least that's what I read over the years.
__________________ 85 Iroc Z28 T-tops, Bilstein struts/shocks, Eibach prokit, sphon towers, Friction Master ceramics, Pretty much every thing steering and suspention wise is new up front.
Electric cooling pump, 3 electric fans, stock 195 stat, 16lb cap.
Newest mod, 145mph speedometer, AEM air/fuel ratio meter, carb tuning.
http://www.thirdgen.org/techboard/en...-v6-parts.html
V6 heads, cam, intake manifold, fuel system, ignition, V6 parts blow out, prices 1/2 to 2/3 the retail price on NIB parts and well below ebay prices on my used parts.
The Performer is an entry level intake,that is a little better than stock,but not a whole lot.The Performer RPM is a much better flowing intake,with more hp potential.However,on a stock 305 without any other modifications,I doubt you'd see any noticable gain,and you might even see a small loss in off idle performance.Intakes are like any other part of an engine,bigger does not always mean better.
correct me if im wrong, but isnt the only difference in edelbrock's intakes the operating RPM they are designed for?
Right, runner size shape and length totally different, meaning it's a totally different intake.
I actually measured my performer non-rpm today, and the port size is 1.2x1.9, so it's a bit smaller than a 1205 gasket which is considered a hot street port.
For comparison sake, a stock TPI baseplate is 1.20x1.96, so the performer is close to stock.
I'm assuming the RPM is spot-on at 1.20x2.04 which is what similar performance manifolds measure out at, but I don't have one to measure.
I glanced at a performer EPS once. Looked like a slightly smaller version of the RPM wasnt to interested in comparing it to a stock performer which just by glance it was larger. The RPM is considered a high performance dual plane intake. The perforomer and EPS are stock replacments the EPS is middle of the road from what ive read with slightly better flow then a performer intake. The RPM is a great intake I run one on my bird and I use it for a DD and I have had great results with it.
__________________ 1976 SWB C10 3/4 drop, gen VI 454/M3.
1973 Buick Apollo wifes play car. Chevy 383/S3.
The performer rpm. I imagine you'll have a little bit of gain but nothing drastic. Probably 6 or 7 more hp and 2 or 3lb torque. If you already have it and it's a sunny day might as well go ahead and put it on but don't expect to be blown away by the results. It is a good intake tho. Also your powerband will probably shift up 500ish rpms.
Last edited by Ivelostcontact; 11-29-2009 at 11:44 PM.
