Islander

iTrader: (6)

Ok fellas, im kinda in the market for a intake setup and wanted a little feed back on a few of the units out there. So if anyone can chime in about any info i would love it. Looking for the pros and cons of each system.

So far ive looked at the:
E&J throttle body with projay lower
Extreme rotories throttle body setup sold by rxparts
Pro-jay typhoon setup

Im looking for pros and cons of each. Info i kinda found out..like one uses the middle bolt to the lim the others dont.. and on some of the 4 barrel throttle bodies some open all at once, and others are progressive. Also trying to find out the driveability of each system. This is for a street car that will grow up to be a drag queen soon. lol. and a track *****.

Also what injectors work with each unit. Heard some take the old style bosch and others can use the newer ev14 id style injectors.

So is the single plate throttle body any harder to manage vs the 4 barrel. Guess i can also ask about quality of each unit. All said comapnies have very good reputations and products. Just looking for some info from you guys.. the real customers and users..

thanks in advance..

freddyrx3

iTrader: (14)

Being that it is a streetable setup, I would use these and in this order.
1.Extreme rotories throttle body setup sold by rxparts(progressive throttle design)
2.ProJay TB w/4 injectors with ProJay Lower and add 2 injectors in the middle iron
3.E&J throttle body with projay lower

The #1 choice is the most streetable of them all, but also the most expensive. And they do fit with the EV14 style injectors. You will need to machine/grind the end area of the E&J TB. Hope this helps.

Islander

iTrader: (6)

^^^ thanks Freddy...

KNONFS

iTrader: (14)

As stated by Freddyrx3, Roan's TB is the only one that its progressive; with that said, I am using a projay TB. A band aid fix for the no progressivesystem is to fine tune the throttle enrichment map.

I believe Roan's intake is not as tall at the projay (jaytech), or JW. If thats a true statement, that in itself is valuable, and might save you a few headaches down the road.

drftinmx6

iTrader: (6)

Anybody know the pricing and availability of the xtreme rotaries tb? On the website it says they're on back order. And I'm not sure if rxparts is updated or not

freddyrx3

iTrader: (14)

Contact Roan @ this link: RX7Club.com - View Profile: SPEED_NYC

He is an Xtreme Rotaries vendor and can help you with questions & pricing.

arghx

iTrader: (3)

Wait, why do you want to change all this stuff again?

drftinmx6

iTrader: (6)

here's another question, how is the fitment with all these manifolds? i'm running the old school greddy t-78 will these manifolds clear the manifold and downpipe, and whats the hood clearence like? from my research , apparently the only manifold will clear the hood on a 3rd gen is the xtreme rotaries manifold. can someone chime in on this?

SPEED_NYC

iTrader: (3)

Thanks Freddy and KNONFS. Yes the X-treme/ RxParts.com - rxpartsonline@gmail.com intake system is the lowers profile the three. it will clear the hood on FC and FD cars with no issues at all. The TB also is the only progressive TB on the market for great drive-ability. The intakes are currently out of stock, but I have a shipment coming in in about 3 weeks. There are many more benifits to the Xtreme/ RxParts intake like the 7th Bolt hole on the lower intake, the superior casting and materials used throughout, the excelent flow and port matching of the lower manifold and many more.

If anyone is interested, Please contact me at RxPartsonline@gmail.com or visit us on Facebook at http://www.facebook.com/RxParts?fref=ts

Thanks
Roan

Islander

iTrader: (6)

Really ive always wanted the throttle body setup just for ***** and giggles. But actually I was asking for a friend. Im happy with what I have now.

Flyweight

iTrader: (1)

What is the throttle response like with the RX Parts Intake Manifold? I would assume that because it has an 80 or 90 mm throttle body that it would be lazy at best. I am interested in road racing.

Thanks,

Andrew

Trots*88TII-AE*

iTrader: (11)

I've heard/seen that the RXParts one is definitely the best quality piece, with everything mentioned above already.

But, if you end up going with another one, I'd suggest the Pro-Jay w/ E&J throttlebody. You can modify it to open progressively like I and others have done: https://www.rx7club.com/rotary-drag-...y-mod-1015021/

Only reason I didn't go with an RXParts setup was they didn't (still don't?) make setups for TII engines.

thewird

iTrader: (8)

That lower intake is for semi-pp ports. Just an FYI but you can probably ask that it not be machined in.

Those intake setups are for max HP. Nobody will give you a truthful answer on how it is in the midrange as these setups are only used on drag cars. My guess is it won't matter as the top-end will make up for anything as long as your engine is ported to suit a high RPM powerband.

Also, rxparts overcharges for the pro-jay intake setups (well everything they sell is overpriced). Buy direct and save money lol. Although honestly, unless you have semi-pp ports, these setups are a waste of money.

thewird

Trots*88TII-AE*

iTrader: (11)

afawaterpolo

iTrader: (7)

Great advice, man knows what he's talking about.


Also if you were chasinh high rpm/power i would recommend you look into a Cosmo RE upper/lower mated to a Wilson manifolds 105mm throttle body. Clears the stock hood.

I'm using it on my setup and its a fully ported Cosmo RE upper/lower with tons of flow. It's making 703 RWHP on a dual eddy current mustang dyno at 23 psi on E85 only while reving to 10,500 RPM's. shooting for 1000 RWHP.

Cost wise upper/lower was $300, throttle body picked up for $350, cutting manifold to port/re-weld (free, did myself). So it cost me $650 and 2 weekends.

KNONFS

iTrader: (14)

Might want to check what some of the fellas are running on their cars with the RX Pars setup

Also, he is misleaded. RXparts and Pro Jay are different products, totally different. Not to mention that you can get these manifolds in semi PP or non semi configuration.

thewird

iTrader: (8)

I put them all in the same category so thats why I call it pro-jay setups. They're all short runner carb style intakes ment for high RPM. The E&J is a little nicer with the ITB's but in the end it will perform similarly powerband wise. It's just overpriced bling unless your looking for max HP imo (drag cars). Although, I like pro-jay's new typhoon setup, might work better as an all arounder. But asking other people that run it won't get the answers your looking for, people will always love what their running and the sellers will always love what their selling.

thewird

drftinmx6

iTrader: (6)

How about we get actual input from somebody who HAS an aftermarket intake setup, who can compare it with the stock intake? people who just say these setups are a waste of money are the exact same people who never even drove a car with a projay, xtreme rotaries, or e&j setup. So if you are going to post something, post from personal experience.

Flyweight

iTrader: (1)

Any input on throttle response on these set ups for road racing. My motor is a semi-p port.

afawaterpolo, looks like a great setup! What turbo are you running? Response?

afawaterpolo

iTrader: (7)

Flyweight,

I'm running a Borg Warner S475 with a T4 housing. Response is relative, I mostly just do runs from a roll starting at 6000 RPM's in 3rd and rev out to 10,500. Limiter is set at 12,000 RPM's. So for me the response is pretty good because I'm usually already pushing at least 500 to the wheels. With the Motec we are playing with the anti-lag kind of like the R35 GT-R guys are doing where from a 60 MPH roll you can already build full boost. This will help with the response but it also comes at the expense of higher EGT's.

Anyhow I know its a completly different set up than what you are looking at. The manifold flows amazing and on the old set up (Large street port with a mild port onthe Cosmo RE upper/lower and a 90mm throttle body with an HKS T04Z it was a beast and had really great response all the way through. Ill see if i can find a video.)

This set up is ridiculous. Everything has been ported to the max (intake manifold, irons, housings) etc. Its just a full bridge and many won't believe this but its not studded, clearanced, etc. The only internal mods on the inside are 2mm RA super seals with race springs, solid Atkins corners and Race Bearings. Thats it and it has over 6000 hard miles on it. We are going to pull the engine to see how everything looks, if its good we are cranking up the boost to the 32-42 psi range and see what we get.

Here are two videos of it on the dyno. First one is a 670-ish pull at 23 psi, you can also see some of the engine bay in this one.


This second one is the 703 RWHP at 23 psi. This one is a view of the dyno monitor so you can see it revving and power numbers. Temp for the day was 96 degrees with a little over 50% humidity. Running a Motec M84 with all options enabled.

KNONFS

iTrader: (14)

The question is, do you have any experience with any of them?

My experience based on this:

KNONFS

iTrader: (14)

8-9 psi by 3100 rpms per the dyno sheet, OEM ports, TO4S, no boost controller, 9psi wastegate spring (not sure if the dyno run was on 3rd or 4th gear )

afawaterpolo

iTrader: (7)

Here are some pics of the engine bay with the Cosmo Setup (scored a great deal from Japan2LA, he always hooks me up).


Theres a pic of the ported lower, the throttle body (Wilson manifolds includes the adapter plate to bolt it up to the Cosmo manifold, a pic of the engine bay, and a pic of the iron ports.

thewird

iTrader: (8)

afawaterpolo's setup pretty much describes what these setups are good for. And for those of you taking my comments a little too seriously, its obviously an opinionated post :P. Take them with a grain of salt like everything else on the forum lol.

thewird

afawaterpolo

iTrader: (7)

thewird hit it on the head, these setups are for high RPM, I know i don't have anything down low but thats okay.

Its not to say its not going to make power down low if it wasn't ported like crazy, it just will not be optimal. Also everybody has their own way of doing things.

If i could offer a piece of advice it would be to listen to your builder/tuner. Ideally they are the same person and go with what they are comfortable with. 9 times out of 10 this will eliminate all kinds of headaches.

My builder/tuner (George Marinov) was perfectly comfortable with all the pieces going into this build. He recommended the Cosmo RE upper and lower for what i wanted. Also while people say an ECU is an ECU, again i would say ask the tuner what they are comfortable with. Just b/c you can tune an AEM does not mean they know how to properly use a Power FC, HKS F-Con V-Pro, Motec, Pro EFI, etc (all great ecu's). Each have their nuances.

Islander, I hope this helps a little, I feel the videos help because it lets you see what the particular setup is doing and you can interpret for yourself and see if you like it or not. If you're ever in the DFW area let me know and I'll take you for a spin.