What injectors?
10-14-2007, 01:01 PM
#1
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What injectors?
What injectors should I be shopping for?
1.6 stock block, getting a MS soon and than turbo, maybe 12psi using a 190lph pump. I do want idle quality. So I guess the question is whats the biggest injectors I can use with out sacrificing the idle?
1.6 stock block, getting a MS soon and than turbo, maybe 12psi using a 190lph pump. I do want idle quality. So I guess the question is whats the biggest injectors I can use with out sacrificing the idle?
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10-14-2007, 02:31 PM
#4
You will probably run out of room by 700 or so cc/min My 550's work just fine. A set of 430's or 460's will probably give you all the fuel you want for a good while then when you are ready to turn it up find something bigger. What about your puny Differential or your 5 speed that doesn't like more than 250 lbft. Or the laughable stock clutch do you have those under control? The motor is by far the stoutest component in your car.
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10-14-2007, 03:28 PM
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You will probably run out of room by 700 or so cc/min My 550's work just fine. A set of 430's or 460's will probably give you all the fuel you want for a good while then when you are ready to turn it up find something bigger. What about your puny Differential or your 5 speed that doesn't like more than 250 lbft. Or the laughable stock clutch do you have those under control? The motor is by far the stoutest component in your car.
Got MS coming soon. Thats 1st, than install injectors and get them running right. Install fuel pump. Upgrade the clutch and flywheel and keep a lookout for a used turbo kit. When the rear goes I'll replace it. I see there priced crazy high, so I'll keep and eye out for a good deal.
So thats the plan, what you think?
I have built many other projects over the years so I'm not new to them just Miatas. The 12psi estimate is at the high I just try to build thing right...once.
Currently for sale is a nice LT1 T-56 RX-7 TII. www.myspace.com/lt1rx7
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12 psi is a decent power hit but no where near high you will be just fine.
10-14-2007, 03:55 PM
#9
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gotta quick question, i was putting my turbo on but now im going to wait until winter because its to much work for now but i already put bigger injectors in 550cc ones and i turned my car on and the idles fucked, its jumpy, i have an AFPR should i put that on and adjust the fuel pressure and it will send more fuel?? or do i have to get an ECU to tune them so it idles, or should i just put the stock ones back on for now until i put my turbo back on with a MS?? 
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10-14-2007, 04:06 PM
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As far as the rears go, there crazy expensive for stock replacement units. I can build a Ford rear for $500 that will support 1000hp! Kicker is I have two extra Rx-7 rears @ my house but there of off turbo cars and I hear they won't fit...sux.
PS: It heart I'm a Mustang guy and the fuel pump 5.0's came with was a 87lph pump. Why the hell does mazda use a 160? lol
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10-14-2007, 04:11 PM
#11
gotta quick question, i was putting my turbo on but now im going to wait until winter because its to much work for now but i already put bigger injectors in 550cc ones and i turned my car on and the idles fucked, its jumpy, i have an AFPR should i put that on and adjust the fuel pressure and it will send more fuel?? or do i have to get an ECU to tune them so it idles, or should i just put the stock ones back on for now until i put my turbo back on with a MS??
Icantdo55
We run a big ole FP cause we are the real HP department of Ford
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10-15-2007, 03:47 AM
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you don't need uprated fuel pumps, just size the injectors right. and seriously how many people are gonna hit 320?
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10-15-2007, 09:39 AM
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yeah fair enough it's your choice.
There's a guy in the UK, Steve Willington, he has an FM stroker and a disco Potato, he shot for and hit 400bhp.
stock fuel pump
and for the record this guys motto is buy cheap buy twice, so if he felt the car needed a stronger pump, he'd have bought one
There's a guy in the UK, Steve Willington, he has an FM stroker and a disco Potato, he shot for and hit 400bhp.
stock fuel pump
and for the record this guys motto is buy cheap buy twice, so if he felt the car needed a stronger pump, he'd have bought one
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10-15-2007, 09:48 AM
#20
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Yea I figure the 15 year old pump is on its last leg, and I don't need it failing under boost.
As far as the rears go, there crazy expensive for stock replacement units. I can build a Ford rear for $500 that will support 1000hp! Kicker is I have two extra Rx-7 rears @ my house but there of off turbo cars and I hear they won't fit...sux.
PS: It heart I'm a Mustang guy and the fuel pump 5.0's came with was a 87lph pump. Why the hell does mazda use a 160? lol
As far as the rears go, there crazy expensive for stock replacement units. I can build a Ford rear for $500 that will support 1000hp! Kicker is I have two extra Rx-7 rears @ my house but there of off turbo cars and I hear they won't fit...sux.
PS: It heart I'm a Mustang guy and the fuel pump 5.0's came with was a 87lph pump. Why the hell does mazda use a 160? lol
keep the stock pump for now. if you plan on replacing a 190lph is fine.
I think getting the smallest injector that will support your goal is best.
What rx-7 rears do you have?
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