3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

rx7store Secondary Fuel rail?

Thread Tools
 
Search this Thread
 
Old Dec 7, 2003 | 11:18 PM
  #1  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
Question rx7store Secondary Fuel rail?

has anyone had any problems with this? or heard of anything that is bad about it? i might be considing buying it. but just want to make sure its good first.
thanks

site
http://66.216.67.51/product.asp?0=211&1=333&3=751
Reply
Old Dec 7, 2003 | 11:33 PM
  #2  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
You may as well get the kit:

http://66.216.67.51/product.asp?0=211&1=333&3=578

Jason has provided everything in that kit that you'll need to run 1600cc injectors (besides the ECU that is).
Reply
Old Dec 7, 2003 | 11:41 PM
  #3  
BigIslandSevens's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 15 Years
iTrader: (4)
 
Joined: Apr 2003
Posts: 3,531
Likes: 0
From: Denver, NC
Kinda pricey yeah? Doesn't one of the other members (Rxrotary2 7)offer a kit with both rails and both sets of injectors, and a FPR? All that needs to be added is the pump. Maybe his doesn't have 1600's but 900 bones is alot.( the other was around 6-700) Nice kit though. Not bashing the store, just my 2 cents. Aloha, Dave

Last edited by BigIslandSevens; Dec 7, 2003 at 11:45 PM.
Reply
Old Dec 7, 2003 | 11:55 PM
  #4  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
http://www.3rdgenrx7.com/keithsrails.htm

I don't know if Keith has a full kit or not. I'm sure he'll pop in and let us know. If not, I'll PM and bug him to find out.


As far as Jason's kit, it's complete:

1600cc injectors
Fuel pump (if you are upgrading your injectors to 1600cc's, I can't imagine using the stock pump)
FPR (same thing as above)
Fuel line and fittings
Resistors (needed to run these with the PFC)
etc...

Looks like a good deal to me.
Reply
Old Dec 8, 2003 | 12:00 AM
  #5  
BigIslandSevens's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 15 Years
iTrader: (4)
 
Joined: Apr 2003
Posts: 3,531
Likes: 0
From: Denver, NC
Yeah I agree but Keith's has a new primary rail and injectors as well if I remember correctly. I guess it's a mental insurance thing for me to replace both with new units when building a nice(HP) engine. BUT: with the cost of a pump added in it will be the same or more than Jason's. ... So it's a toss up i guess. BTW: I agree about never trying to go with 1600's on stock pump. (Can you say overworked) and the fpr! Both kits look nice. It's worth it I am just comparing the other options. Aloha.
Reply
Old Dec 8, 2003 | 12:13 AM
  #6  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
Originally posted by BigIslandSevens
Yeah I agree but Keith's has a new primary rail and injectors as well if I remember correctly. I guess it's a mental insurance thing for me to replace both with new units when building a nice(HP) engine.
But, that also depends on if you are using larger primaries as most of the primary rails will probably be only for 720cc or larger injectors. If you are just saying with 550's, no need to change it (maybe remove the injectors and have them cleaned though).
Reply
Old Dec 8, 2003 | 12:21 AM
  #7  
BigIslandSevens's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 15 Years
iTrader: (4)
 
Joined: Apr 2003
Posts: 3,531
Likes: 0
From: Denver, NC
Your right!! I forgot that keith's came with the 850's. My bad sorry!! A good cleaning should be fine.
Reply
Old Dec 8, 2003 | 05:58 AM
  #8  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
well what im going to be doing is putting the 850cc from the secondaries in the primary rail (common) and get the new rail and put in the 1600cc, but my question is if that rail is good, seems like it is.
let me know mahkjik or anyone else with experience with it.
Reply
Old Dec 8, 2003 | 07:25 AM
  #9  
rxrotary2_7's Avatar
Lives on the Forum
Tenured Member 20 Years
 
Joined: May 2001
Posts: 5,097
Likes: 1
From: southern NJ
Originally posted by rx7raca
well what im going to be doing is putting the 850cc from the secondaries in the primary rail (common)
common? yes. common for it to leak? yes. good idea? its your call. in a way its good, and in a way its bad. i would definatly recomend to have your OEM primary inj cleaned professionaly though.
i do have a full kit, but i am not doing anything until after the holidays as far as putting kits together.
Jason's kit is not a bad price, and my kit offers different components than his. you cna see some here. http://www.kgparts.com/
Reply
Old Dec 8, 2003 | 08:38 AM
  #10  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
Our kits are similar. If you dont want the fuel pump from my kit the price is $669.

Jason
Reply
Old Dec 8, 2003 | 01:44 PM
  #11  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
Originally posted by rxrotary2_7
common? yes. common for it to leak? yes.
not if you mill the primary rail to make it fit perfect with the injectures.

https://www.rx7club.com/showthread.p...hreadid=229524

i cant see how this wouldnt work. the stock 550s are taller, so by milling down the rail to fit, you have a perfect seal. correct me if im wrong.
Reply
Old Dec 8, 2003 | 02:12 PM
  #12  
Mahjik's Avatar
Mr. Links
Tenured Member 20 Years
iTrader: (1)
 
Joined: Aug 2001
Posts: 27,595
Likes: 43
From: Kansas City, MO
Originally posted by rx7raca
not if you mill the primary rail to make it fit perfect with the injectures.

https://www.rx7club.com/showthread.p...hreadid=229524

i cant see how this wouldnt work. the stock 550s are taller, so by milling down the rail to fit, you have a perfect seal. correct me if im wrong.
It's getting the seal "perfect" which is what he's referring to. How much HP are you planning on running?
Reply
Old Dec 8, 2003 | 06:28 PM
  #13  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
what i want:D

400-450, maybe more, we will see how things are with that, but that is what im shooting for. is the whp a factor on how well the injectures seal? well i guess if you run more fuel causing more pressure then its a problem, more feul more power? am i correct?


with the new fuel rail will it accept all 850 injectors?

Last edited by rx7raca; Dec 8, 2003 at 06:36 PM.
Reply
Old Dec 8, 2003 | 07:42 PM
  #14  
jdhuegel1's Avatar
Glug Glug Glug Burp
Tenured Member 05 Years
 
Joined: Jan 2002
Posts: 3,819
Likes: 0
From: Scott AFB, IL
I have Keiths setup. Couldn't be more pleased. Great to deal with. I'm sure Jasons is great too.
Reply
Old Dec 8, 2003 | 07:47 PM
  #15  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
I just dyno tuned a car lastnight. It had 850cc primary and 1600cc secondary. We were hitting 91% duty cycle on the injectors at 449 RWHP.

Jason
Reply
Old Dec 8, 2003 | 08:39 PM
  #16  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
Originally posted by Jason
I just dyno tuned a car lastnight. It had 850cc primary and 1600cc secondary. We were hitting 91% duty cycle on the injectors at 449 RWHP.

Jason

well now thats not good. so that means that ill have to either get 2 things, maybe even both.

the bigger primaries or fuel pressure regulator.

bigger primaries are a pain though cause they mess with your idle and regulator is like cheating, and can cause problems if you go over 60lbs.

does this sound correct?
jason i see that you have 1000 primaries, is idle litttle weird at times?

tell me what i should do guys, i want to run safe but powerful, not that they mix to well but fuel wise at least.
thanks
geoff
Reply
Old Dec 8, 2003 | 08:41 PM
  #17  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
hey jason, also what was his a/f when he dynoed?
Reply
Old Dec 8, 2003 | 10:26 PM
  #18  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
Using a fuel calculator 850cc primary and 1600cc secondary should support 670 at the flywheel. Im guessing that is on a stock motor. We are running large street ports or race ports. The car we were tuning, I think the fuel pump was not holding up which could be part of our problem. The A/F was in the low 11's high 10's.
My car idles great with 1000cc primarys, but it does take a few cranks to get it started.

Jason
Reply
Old Dec 8, 2003 | 10:43 PM
  #19  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
well i am planing on porting, but not to big, i still want to be able to pass emissions, but still have bigger than stock ports.

so do you think i will be fine with that 850s and 1600s? also maybe a upgraded fuel pump? i dont want to run anymore than 80% duty cycle. let me know what you think (and others of course) what is the safest way to go with the fuel system, best pump, size injectors,etc.
thanks
geoff
Reply
Old Dec 9, 2003 | 12:12 AM
  #20  
BigIslandSevens's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 15 Years
iTrader: (4)
 
Joined: Apr 2003
Posts: 3,531
Likes: 0
From: Denver, NC
On my T 78 I ran 850's for primaries and 1600's for sec.. XS modified the stock rails for the bigger injectors.( this was about 3 years ago) I used a Paxton FPR and don't recall the pump that was in there. I was dynoed at 401 @ XS's dyno.( again about 3 years ago) Stainless lines from the firewall to rails. IMO: it looks like crap with the welds for a stainless fitting on the ends of the rail. I am looking for a nice set-up soon. Both of the ones mentioned in this thread are looking good to me.
Reply
Old Dec 9, 2003 | 08:50 PM
  #21  
rx7raca's Avatar
Thread Starter
wHiTe kNiGhT
Tenured Member 10 Years
 
Joined: Oct 2002
Posts: 1,393
Likes: 0
From: ct
Originally posted by BigIslandSevens
On my T 78 I ran 850's for primaries and 1600's for sec.. XS modified the stock rails for the bigger injectors.( this was about 3 years ago) I used a Paxton FPR and don't recall the pump that was in there. I was dynoed at 401 @ XS's dyno.( again about 3 years ago) Stainless lines from the firewall to rails. IMO: it looks like crap with the welds for a stainless fitting on the ends of the rail. I am looking for a nice set-up soon. Both of the ones mentioned in this thread are looking good to me.

at what duty cycle?
Reply
Old Dec 9, 2003 | 09:32 PM
  #22  
c00lduke's Avatar
Rotary Freak
Tenured Member 20 Years
 
Joined: Jan 2002
Posts: 2,360
Likes: 0
From: Overland Park, KS
For some reason i thought that 850s pri and 1600s sec would be enough for 500+ hp.

~Luke
Reply
Old Dec 9, 2003 | 11:17 PM
  #23  
SpiritR's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 603
Likes: 0
From: out there
Originally posted by Jason
Our kits are similar. If you dont want the fuel pump from my kit the price is $669.

Jason
I have a buddy that wants this. How do we go about ordering it without the fuel pump since there is no option on the webpage? Also is it in stock? FOR SURE?
Reply
Old Dec 9, 2003 | 11:19 PM
  #24  
SpiritR's Avatar
Senior Member
Tenured Member 05 Years
 
Joined: Nov 2002
Posts: 603
Likes: 0
From: out there
400hp on 1600inj your tunner or equipment BLOWS GOATS!

Im seeing an FD now with 450hp on stock fuel inj and rail, just with a big fuel pump
Reply
Old Dec 9, 2003 | 11:32 PM
  #25  
Jason's Avatar
The one
iTrader: (5)
 
Joined: Jul 2001
Posts: 3,862
Likes: 5
From: Fort Worth, TX
Originally posted by SpiritR
400hp on 1600inj your tunner or equipment BLOWS GOATS!

Im seeing an FD now with 450hp on stock fuel inj and rail, just with a big fuel pump
Running the fuel injectors at 100% wont last long, nor will his motor.

Just have him call me if he needs that setup. I have everything except the fuel pump.

Jason
Reply



All times are GMT -5. The time now is 07:52 AM.