venom 550cc direct fit
- Thread starter wardog
- Start date
ask yourself this one question:
"would i rather just spend the extra $100 on RC engineering injectors now, or $2000 later on a rebuild when i blow my motor"
in all honesty, this is definately one of those times where the saying: "you get what you pay for" is true.
dont get venoms, get some RC engineering, or something as good in quality.
-shaeff
"would i rather just spend the extra $100 on RC engineering injectors now, or $2000 later on a rebuild when i blow my motor"
in all honesty, this is definately one of those times where the saying: "you get what you pay for" is true.
dont get venoms, get some RC engineering, or something as good in quality.
-shaeff
wardog said:
PTE use Delphi injectors.
avaialble from 440cc/min to 1000cc/min. They are good and I haven't had any issues with them.Nippo Denso are standard fair in the Supra. Except we use 440. The 550 from ND came in the RX-7 of the same year.
I put the PTE 550's in the 7m we just built and they have worked out great. They came with connectors for $350 shipped on ebay. The RC injectors were going to be a lot more then $100 more because the clips were not included. It was going to be more then $500 for the RC injectors.
tonysupra said:
Yeah, we installed a walbro fuel pump, but the stock fpr is ok for the boost we will be running.
One thing I noticed is that the connectors can't be unplugged from the PTE injectors without loosening the fuel rail.
i have a set of Venom python 550cc injectors. while racing down the dragstrip i missed third and over-revved... bouncing off the rev limiter. after that run it turned out my car has low compression in cylinder #1. this happened years ago. my Supra awaits me in my garage to fix up... which i'm in the process of doing now.
i'm not saying the Venom injectors did the dirty deed, but i'm curious. so just about 30minutes ago i dropped off my injectors here http://www.fuelinjection.com/ . i was wondering if i could use these injectors again to i'm getting them cleaned and flowed. they said they should be done in about 4 hours, so i'm going to get the results today.
i bought these injectors about 7 years ago. the car ran fine for about 2 years until i over-revved at the dragstrip. since my MKIII was my only car at the time i continued to drive it for roughly another 6 months in that condition. i didn't have the money to fix it. turbo gave out on the car so i had no choice to park it and just buy another daily driver until i could get back to the MKIII. so my car has been sitting about 5years now. i would still go out there and start it up and let it idle for a while, but it hasn't been driven for a long time. so we shall soon see if these injectors are still any good, and what they flow. results in a few hours guys so stayed tuned!
i'm not saying the Venom injectors did the dirty deed, but i'm curious. so just about 30minutes ago i dropped off my injectors here http://www.fuelinjection.com/ . i was wondering if i could use these injectors again to i'm getting them cleaned and flowed. they said they should be done in about 4 hours, so i'm going to get the results today.
i bought these injectors about 7 years ago. the car ran fine for about 2 years until i over-revved at the dragstrip. since my MKIII was my only car at the time i continued to drive it for roughly another 6 months in that condition. i didn't have the money to fix it. turbo gave out on the car so i had no choice to park it and just buy another daily driver until i could get back to the MKIII. so my car has been sitting about 5years now. i would still go out there and start it up and let it idle for a while, but it hasn't been driven for a long time. so we shall soon see if these injectors are still any good, and what they flow. results in a few hours guys so stayed tuned!
Ok, I picked up my injectors from www.fuelinjection.com . So do they flow 550cc's? No. According to their calculations they flow around 528cc/min at 118cc's in 15seconds at 35psi fuel pressure. With more fuel pressure than what they tested the injectors these Venoms will flow 550cc injectors.
So that's roughly off by 4%. Is that a pretty good tolerance to be off by? That's up to you. Personally, I'm not upset. After talking to them at length of what these injectors are capable of horsepower-wise I'm happy. I asked if I could push 600HP at the crank and they said with the right amount of fuel pressure... yes.
Of course they do before and after flow testing. When they did the before flow they were confused as to why these injectors were in for cleaning. They sprayed excellent before cleaning. They cleaned them and did the after test. They sprayed/flowed exactly the same. Not bad for some junk injectors that's been through years of neglect huh?
What are your thought? Is 4% acceptable to you? Or dammit I paid for some 550cc's and that's what I want! Well?
EDIT: Oh, they didn't know what fuel pressure I was going to be running with these injectors. That's why they tested them at 35psi of fuel pressure.
So that's roughly off by 4%. Is that a pretty good tolerance to be off by? That's up to you. Personally, I'm not upset. After talking to them at length of what these injectors are capable of horsepower-wise I'm happy. I asked if I could push 600HP at the crank and they said with the right amount of fuel pressure... yes.
Of course they do before and after flow testing. When they did the before flow they were confused as to why these injectors were in for cleaning. They sprayed excellent before cleaning. They cleaned them and did the after test. They sprayed/flowed exactly the same. Not bad for some junk injectors that's been through years of neglect huh?
What are your thought? Is 4% acceptable to you? Or dammit I paid for some 550cc's and that's what I want! Well?
EDIT: Oh, they didn't know what fuel pressure I was going to be running with these injectors. That's why they tested them at 35psi of fuel pressure.
tonysupra said:
heh, i did buy them brand new. :hs: yeah but hey... they're cheap and reworked stockers to flow 550cc's. They came pretty close. Oh, and my Map-ecu came in today. Still need to pull the 7mgte and build that up. I'm in no hurry though since it's on of my toys.
you know what i think, i think it's whatever is in fashion for the season. and Venom never really made a statement like some of the other brands.
kinda reminds me of the clutch/pressure plate line up. first there Centerforce people swore by them. up until ACT came out. all of a sudden Centerforce were crap and started slipping on people, and ACT was the way to go. then Clutchmasters dethroned ACT, and ACT was crap. RPS dethroned Clutchmaster. and so on. i could be wrong, but that's what i've noticed over the years.
so for some reason if all the big dog import guys were running Venom maybe they would be the thing. i take nothing from RCEngineering, PTE, or other cause they are all good and proven injectors. but that doesn't make my poor Venoms crap. they get the job done at a fraction of the cost. they're all flowing within 1% of each other, and the Ohms are very good according to www.fuelinjection.com . they said they were in excellent shape when i brought them in. go figure. has anybody had any bad experiences with them? if so let us know.
kinda reminds me of the clutch/pressure plate line up. first there Centerforce people swore by them. up until ACT came out. all of a sudden Centerforce were crap and started slipping on people, and ACT was the way to go. then Clutchmasters dethroned ACT, and ACT was crap. RPS dethroned Clutchmaster. and so on. i could be wrong, but that's what i've noticed over the years.
so for some reason if all the big dog import guys were running Venom maybe they would be the thing. i take nothing from RCEngineering, PTE, or other cause they are all good and proven injectors. but that doesn't make my poor Venoms crap. they get the job done at a fraction of the cost. they're all flowing within 1% of each other, and the Ohms are very good according to www.fuelinjection.com . they said they were in excellent shape when i brought them in. go figure. has anybody had any bad experiences with them? if so let us know.
IHI-RHC7 said:
yeah i read that on their site... the 10% better than stock thing. i would look for another brand injectors too if i read that. Hmm. but when i bought mine 7years ago and they were advertised as modified stockers running 550cc's.
so if they're rated at a defacto of 43.5psi then that means they would flow exactly the same at a higher psi? i remember when they were telling me about the 35psi there was something in the equation about the new psi 43.5 over the old psi 35psi. maybe i misunderstood them. but they did say raise the fuel pressure and they'll supply more fuel. i'm a newbie at all of this so educate me if ya'll know more about them.
I feel that unless I upgrade my turbo, I don't need bigger injectors. My next mod was going to be the lexus mod but I asked myself, why should I without a turbo upgrade? I'll just end up messing the ct26 up if I raised boost up too much.
I'm hoping to reach 1 bar with the ct26 by other methods while trying to avoid fuel cut. I just did the stock afm screw mod and i'm about to buy a walbro, iridium spark plugs, and ngk spark plug wires. Any suggestion on what else to do to get to 1 bar?
I'm hoping to reach 1 bar with the ct26 by other methods while trying to avoid fuel cut. I just did the stock afm screw mod and i'm about to buy a walbro, iridium spark plugs, and ngk spark plug wires. Any suggestion on what else to do to get to 1 bar?
besides lexus mod? FCD. but lots of people have bad vibes against that. i was running an HKS FCD with my upgraded CT26 with garret 50trim wheel. that turbo loved 18psi. and if i were to do it all over again i wouldn't have upgraded to 550cc injectors. i would've just run the 440's. and went with a SAFC. i don't know if that would have fixed the fuel cut issue though.
so why is it so bad to run a FCD? how exactly does it harm the ECU or fuel system? what's the old myth about it?
so why is it so bad to run a FCD? how exactly does it harm the ECU or fuel system? what's the old myth about it?