Forums/Z31P/z31-basics basic-modifications-basic-questions-aka-the-newbie-forum/How much power…
Imported from Z31Performance.com Forums{{#if:yota73| — original post by yota73}}{{#if:2010-05-03 21:14:55|, posted 2010-05-03 21:14:55}}{{#if:32| · 32 post{{#ifeq:32|1||s}}}}{{#if:/Z31performance_archive/forum/z31-basics/basic-modifications-basic-questions-aka-the-newbie-forum/10414-how-much-power.html|
Local archive: view archived thread on dev.z31library.com}}
yota73: (2010-05-03 21:14:55)
Hey everyone I just bought a set of 460cc injectors and was wondering how much power can be made with these. Thank you
TurboDreams: (2010-05-03 21:28:15)
473HP according to deatschwerks at stock fuel pressure. Of course raising fuel pressure to 60psi or so will give you more than 600hp from those injectors.
For future use
http://www.deatschwerks.com/catalog/…alculators.php
BLOZ UP: (2010-05-03 21:44:32)
Fixed.
With 6 cylinders, an on our not-so-efficient VG, you can almost directly convert ccs to hps. But it can still vary a large amount by other mods to the engine.
With 4 cylinders it's less hp for the same CC, and the inverse of that is true for more than 6 cylinders.
TurboDreams: (2010-05-03 22:46:27)
Running old fuel lines is a good way to get fuel leaks. Goodyear fuel injection hose is rated to 100psi I believe. A Walbro fuel pump is more than capable of running 60psi and they are cheaper than a set of injectors if he did max out at stock pressure.
Robyr: (2010-05-03 22:49:17)
ALL fuel line will leak above a certain pressure, old or not. The 100PSI rating is the worst-case-scenario peak rate.
TurboDreams: (2010-05-03 22:51:22)
Actually the "minimum burst pressure" on said fuel line is 900psi. I meant continous use.
NissanXRMA: (2010-05-03 23:48:14)
It doesn't matter what the burst rating is. So i could get SS fuel lines and run 1000000 psi!!! :-D No Your running the injectors harder. 60 for a base pressure is like 4 bar = too much. If your want to run 600 hp then get bigger injectors.
yota73: (2010-05-04 02:29:31)
I don't need anywhere near 600hp. My car weighs 2140lbs (1973 toyota celica gutted) so maybe less. I am trying to get into the low 10's so 350rwhp and what 400+ rwtq should do the trick. So if these can get me to 475 then awesome.
SATAN: (2010-05-04 02:30:40)
60 psi base pressure coupled with your boost pressure of 20+ psi. Crank your walbro up to 80+psi of fuel pressure and watch that fucker fall flat on its face while trying to make anything over 350-400whp. Even the GSS-342 high pressure… It can make good pressure, but at those pressure levels it can't flow for shit.
Also, 460's will do 473hp but not 473whp. I would not try to go above 440whp on those injectors unless you are upping your fuel pressure with a pump that is more capable than a walbro.
SATAN: (2010-05-04 02:33:10)
You are not going to get you and your car (2300lbs) To low ten's with only 350whp. If you could manage to do a FLAWLESS run, you MIGHT squeeze high tens low 11's.
yota73: (2010-05-04 02:34:31)
Ok what fuel pressure should I run on those injectors to get to 350whp? By the way this an n/a to turbo power plant.
Chrisw_2003: (2010-05-04 02:34:57)
[quote]SATAN wrote:
Running old fuel lines is a good way to get fuel leaks. Goodyear fuel injection hose is rated to 100psi I believe. A Walbro fuel pump is more than capable of running 60psi and they are cheaper than a set of injectors if he did max out at stock pressure.
60 psi base pressure coupled with your boost pressure of 20+ psi. Crank your walbro up to 80+psi of fuel pressure and watch that fucker fall flat on its face while trying to make anything over 350-400whp. Even the GSS-342 high pressure… It can make good pressure, but at those pressure levels it can't flow for shit.
Also, 460's will do 473hp but not 473whp. I would not try to go above 440whp on those injectors unless you are upping your fuel pressure with a pump that is more capable than a walbro.
thats what you need. im sure satan could tell you what all the parts are
yota73: (2010-05-04 02:36:21)
[quote]SATAN wrote:
I don't need anywhere near 600hp. My car weighs 2140lbs (1973 toyota celica gutted) so maybe less. I am trying to get into the low 10's so 350rwhp and what 400+ rwtq should do the trick. So if these can get me to 475 then awesome.
You are not going to get you and your car (2300lbs) To low ten's with only 350whp. If you could manage to do a FLAWLESS run, you MIGHT squeeze high tens low 11's.
Well a good buddy of mine running under stock boost on a 2jzte in his 2500+ lb celica runs high 10's low 11's with 300 whp. Not that I am doubting you by any means
SATAN: (2010-05-04 02:36:59)
Well, do get 350whp out of those injectors, you don't modify your fuel pressure as they are capable of achieving those power levels on stock fuel pressure. You would then modify your pulse width accordingly.
SATAN: (2010-05-04 02:40:04)
[quote]yota73 wrote: [quote=SATAN]
I don't need anywhere near 600hp. My car weighs 2140lbs (1973 toyota celica gutted) so maybe less. I am trying to get into the low 10's so 350rwhp and what 400+ rwtq should do the trick. So if these can get me to 475 then awesome.
You are not going to get you and your car (2300lbs) To low ten's with only 350whp. If you could manage to do a FLAWLESS run, you MIGHT squeeze high tens low 11's.
Well a good buddy of mine running under stock boost on a 2jzte in his 2500+ lb celica runs high 10's low 11's with 300 whp. Not that I am doubting you by any means
Your good buddy lied to you if he is doing that and told you he is only making 300whp. 300whp with a car and driver weighing 2500lbs would pull a high 11 in a PERFECT run. In reality, more likely mid to low 12's. I don't care what the power plant is or the car. It all comes down to the math.
yota73: (2010-05-04 02:41:37)
I rode in it and it did 0-160mph in less than 1/2 mile. I didn't ride the 1/4 though
SATAN: (2010-05-04 02:44:20)
That's fine, it sounds like a very fast car, but I can promise you it is making more than 300whp. Either that or he and the car together weigh less than 2000lbs… not likely.
Rick88ss: (2010-05-04 02:44:58)
What ecu are you using? Nistune?
yota73: (2010-05-04 02:47:15)
[quote]SATAN wrote:
I rode in it and it did 0-160mph in less than 1/2 mile. I didn't ride the 1/4 though
That's fine, it sounds like a very fast car, but I can promise you it is making more than 300whp. Either that or he and the car together weigh less than 2000lbs… not likely.
Deffinitely not 2000lbs with him and I in it. Mine is closer to that. He may be making more than 300whp but he is running on 8psi at the time of my ride-a-long. Not trying to argue just figuring shyte out brother.
yota73: (2010-05-04 02:48:39)
[quote]Rick88ss wrote:
Ok what fuel pressure should I run on those injectors to get to 350whp? By the way this an n/a to turbo power plant.
What ecu are you using? Nistune?
MS2
SATAN: (2010-05-04 02:56:40)
[quote]yota73 wrote: [quote=SATAN]
I rode in it and it did 0-160mph in less than 1/2 mile. I didn't ride the 1/4 though
That's fine, it sounds like a very fast car, but I can promise you it is making more than 300whp. Either that or he and the car together weigh less than 2000lbs… not likely.
Deffinitely not 2000lbs with him and I in it. Mine is closer to that. He may be making more than 300whp but he is running on 8psi at the time of my ride-a-long. Not trying to argue just figuring shyte out brother.
Here man…
https://dev.z31library.com/extras_archive/robrobinette.com/et.htm
yota73: (2010-05-04 03:06:26)
That's fine, it sounds like a very fast car, but I can promise you it is making more than 300whp. Either that or he and the car together weigh less than 2000lbs… not likely.
Deffinitely not 2000lbs with him and I in it. Mine is closer to that. He may be making more than 300whp but he is running on 8psi at the time of my ride-a-long. Not trying to argue just figuring shyte out brother.
Here man…
https://dev.z31library.com/extras_archive/robrobinette.com/et.htm
Thanks brother according to that 350whp with 2140lbs should get me 10.651 :twisted: Obviously traction depedant
Rick88ss: (2010-05-04 03:09:15)
[quote]yota73 wrote: [quote=Rick88ss]
Ok what fuel pressure should I run on those injectors to get to 350whp? By the way this an n/a to turbo power plant.
What ecu are you using? Nistune?
MS2
Run the fuel pressure at 43.5 psi base pressure. That's with the vacuum line disconnected from the fuel pressure regulator.
But you can make 450 rwhp with a smaller turbo than a T70. If all you wanna make is 450 rwhp I would go with a smaller turbo.
yota73: (2010-05-04 03:12:33)
What ecu are you using? Nistune?
MS2
Run the fuel pressure at 43.5 psi base pressure. That's with the vacuum line disconnected from the fuel pressure regulator.
But you can make 450 rwhp with a smaller turbo than a T70. If all you wanna make is 450 rwhp I would go with a smaller turbo.
Well I would go with a smaller turbo but I got a wicked deal on the t70 so that is what I'll use. Later on I can get bigger injectors no problem. Just kinda getting the feel for what kind of power without maxing the efficiency of the 460cc's out. If I can get even max 420whp out of it I'm a very happy man
Rick88ss: (2010-05-04 03:23:20)
Alot of people have made over 420 rwhp with the Mercedes Bosch 420cc injectors.
But I think that's with the fuel pressure close to a base pressure of 58psi instead of 43.5psi.
Why did you go with that size injector? Got a good deal on them too? Just wondering?
SATAN: (2010-05-04 03:28:12)
Don't forget the weight of yourself and that you have to have perfect shifts, perfects launch, basically no flaws.
yota73: (2010-05-04 03:33:58)
Deffinitely not 2000lbs with him and I in it. Mine is closer to that. He may be making more than 300whp but he is running on 8psi at the time of my ride-a-long. Not trying to argue just figuring shyte out brother.
Here man…
https://dev.z31library.com/extras_archive/robrobinette.com/et.htm
Thanks brother according to that 350whp with 2140lbs should get me 10.651 :twisted: Obviously traction depedant
Don't forget the weight of yourself and that you have to have perfect shifts, perfects launch, basically no flaws.
Yeah will deffinitely take a lot of practice, as I have never had this engine running in the car as of yet still in the fitting process. But I know what you're talking about my man. I value your input more than most.
yota73: (2010-05-04 03:35:19)
Got a wicked good deal on them as well. Was going to stay with the stock turbo injectors but I wanted to have more of a limit than 280
Rick88ss: (2010-05-04 03:43:56)
[quote]yota73 wrote:
Alot of people have made over 420 rwhp with the Mercedes Bosch 420cc injectors.
But I think that's with the fuel pressure close to a base pressure of 58psi instead of 43.5psi.
Why did you go with that size injector? Got a good deal on them too? Just wondering?
Got a wicked good deal on them as well. Was going to stay with the stock turbo injectors but I wanted to have more of a limit than 280
Ok then. Run the pressure at 45psi and see what happens.
When are you gonna fire it up?
Keep us posted.
yota73: (2010-05-04 03:47:55)
Well the oil pan and cross member are being modified as we speak so I am getting the toyota 8" rear end ready to go in while I wait. Also am building a new dash for more guages and getting the wiring done. I really hope in a month it will be done. Having a baby in 3 months so need it done asap. I will most deffinitely keep update coming when I have pictures.
grumpystony: (2010-05-10 01:01:21)
http://www.streetfire.net/video/timemac … _95035.htm
348 whp and runs 10.99 Weight unknown. BUt cant be too light. Not easy to make an rx7 turbo weight less than 2500
yota73: (2010-05-12 00:22:06)
Well my celica weighs in right now with nothing in it about 1700 lbs. So really don't newed to lighten it at all.