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rx7store Secondary Fuel rail?

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Old 12-07-03, 11:18 PM
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wHiTe kNiGhT

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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
Old 12-07-03, 11:33 PM
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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).
Old 12-07-03, 11:41 PM
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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; 12-07-03 at 11:45 PM.
Old 12-07-03, 11:55 PM
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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.
Old 12-08-03, 12:00 AM
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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.
Old 12-08-03, 12:13 AM
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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).
Old 12-08-03, 12:21 AM
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Your right!! I forgot that keith's came with the 850's. My bad sorry!! A good cleaning should be fine.
Old 12-08-03, 05:58 AM
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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.
Old 12-08-03, 07:25 AM
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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/
Old 12-08-03, 08:38 AM
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Our kits are similar. If you dont want the fuel pump from my kit the price is $669.

Jason
Old 12-08-03, 01:44 PM
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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.
Old 12-08-03, 02:12 PM
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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?
Old 12-08-03, 06:28 PM
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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; 12-08-03 at 06:36 PM.
Old 12-08-03, 07:42 PM
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I have Keiths setup. Couldn't be more pleased. Great to deal with. I'm sure Jasons is great too.
Old 12-08-03, 07:47 PM
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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
Old 12-08-03, 08:39 PM
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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
Old 12-08-03, 08:41 PM
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hey jason, also what was his a/f when he dynoed?
Old 12-08-03, 10:26 PM
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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
Old 12-08-03, 10:43 PM
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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
Old 12-09-03, 12:12 AM
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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.
Old 12-09-03, 08:50 PM
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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?
Old 12-09-03, 09:32 PM
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For some reason i thought that 850s pri and 1600s sec would be enough for 500+ hp.

~Luke
Old 12-09-03, 11:17 PM
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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?
Old 12-09-03, 11:19 PM
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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
Old 12-09-03, 11:32 PM
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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


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