will 1000cc injectors
i have my rtec 2.1
but all i have are 2 1000cc injectors for secondarys can i use the 550s for primarys with a bnr turbo stage 2 will it stumble and act up or can it be done with no problem i have a 87 t2 walboro fuel pump fmic |
Having injectors that are very far apart in flow ratings are not recommended.
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what do you recomend
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720cc secondaries.
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4x 720cc injectors will be just enough at reasonable duty cycles.
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has anyone got any decent hp with this set up
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Originally Posted by dennis blackstone
(Post 10531184)
has anyone got any decent hp with this set up
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i put in 720 1000 setup in mine but it wont run on the 720/720 setting. it only runs and idles on the 550 550
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Originally Posted by bikeboy23332
(Post 10531624)
i put in 720 1000 setup in mine but it wont run on the 720/720 setting. it only runs and idles on the 550 550
maybe the start map got wiped flat when you changed it over... i would at least run the 550/720 setting.. |
Does any one know if i will have issues with 550 pimaries and 750 on secondaries?
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Originally Posted by bikeboy23332
(Post 10531624)
i put in 720 1000 setup in mine but it wont run on the 720/720 setting. it only runs and idles on the 550 550
Originally Posted by 10AEinIOWA
(Post 10532021)
Does any one know if i will have issues with 550 pimaries and 750 on secondaries?
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i have also a 255 lph and stock fpr
what should i do to make this work i see some use 720 asome use 750...where can i get the 750s if there better |
Originally Posted by dennis blackstone
(Post 10532786)
i have also a 255 lph and stock fpr
what should i do to make this work i see some use 720 asome use 750...where can i get the 750s if there better http://cgi.ebay.com/ebaymotors/2-Sie...Q5fCarQ5fParts |
720/1000 cc injectors worked well for me. 720/720 setting
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do you have your settings to share with us
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im running 850 /1000 with a walbro 255lph on the 720/720 settings. The fuel map fields in the cruising areas are all over the place but it works well with this setup.
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Well after some consideration I changed my settings to 550/720. Pulled about 28 - 31 from 2psi to all vaccum. Then used solareons fuel map in boost areas and still had to pull that alot. So far I'm up to 13 psi with a 68.74 duty cycle. Afrs seem to run around mid 11's sometimes hits 10.9. It feels good but I want to hit the 320hp mark. I'm hoping this can be reached at 17psi :)
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Originally Posted by hiroichi1515
(Post 11105451)
...... It feels good but I want to hit the 320hp mark. I'm hoping this can be reached at 17psi :)
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I've used 720/1000 and even 720/1600 with rtek 2.1 without any issues.
Be careful when exceeding 15psi on the stock map sensor... |
Yep. I'm using water injection to try and help prevent any issues up there. I have enough fuel for it. My setup is....
S4 N/A keg with fd oil pressure regulator (otherwise stock) S4 hybrid, to4b v trim wheel, 38mm wastegate Fmic, mounted in the spot of the radiator 2.5 dp and mid to 3 cat back Walbro 255 820cc / 1000cc 400cc water injection pre turbo Apexi AVCR boost controller In reading that preturbo injection will move the compressor map up and the right, I hope to still be in the efficiency range at the psi. My goal is 320rwhp. True I may be at that now but I don't have anything to compare it too :(. If I don't reach that amount by 17psi I'm not going higher but I really would like to see what it's like. |
so i just got my rtek 2.1
my current setup.....s4 turbo motor with minor streetport bnr stage4 turbo with full racing beat exhaust fmic with tial b.o.v all emmisions removed act 6 puck with 17lb flywheel rc 550cc/1000cc walbro 255lph .......... with this being said what shold be a good primary setup to use to go to the dyno to fine tune? 550/720 preset? any help or maps would greatly be appreciated! |
550/720
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you'd be better off with 720 primaries considering the air a stage 4 bnr can move and the rather large transition from 550 --> 1000. How much boost do you plan to run?
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I have no issues running 550/1000cc on the 550/720 setting
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planning on running as much as possible and be safe, so im assuming max will be 15psi b/c of the factory sensors. is there anyway around that to push more that 15psi and be safe?
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thanks man this is very helpful!
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Originally Posted by t2ae
(Post 11109360)
...... is there anyway around that to push more that 15psi and be safe?
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ive ran previously at 17psi and it pulled great but that was for a very short time. i have the rear housing being replaced due to the typical s4 crack by the dowel pin. so here within the next week hopefully i will have her back together. i will keep you guys posted as how it goes with the rtek. before all i had was a safc 2 and a wideband. this will be the first time i have had something to control timing so im hoping it will run smoother. previously though i hit the dyno once and at 9.5-10psi was 301whp so im hoping to get 400whp
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update* i now have the var back running with the rtek 2.1 and it is running great!! im currently just taking it easy to enjoy it lol. once i hit the dyno again ill let you guys know the numbers
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Any updates? Engine still together?
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Yes engine is still running great. Just had it tuned and did 339whp 259wtq. That's at 15psi. Wouldn't say I'm happy or mad. It pulls good just was expecting more. I'll be selling this whole setup in the near future to go with a Borg Warner s366 and stand alone.... bnr stage 4 and rtek 2.1
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