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you know anyone thats selling there 2.0? i have a 1.7 right now but i cant take it out. its my dd
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I don't know of anyone selling a 2.0 right now.
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Originally Posted by 95nracer
(Post 7112759)
LoL.. I wasn't a demo car for BNR. I just wanted to get the info out there. The first time I dynoed with the Stage 1 with 550+720 the AFR's where in the mid to high 11's. That was with a Rtek 1.5, HKS AFR (Think Apexi AFC) and at 10psi. https://www.rx7club.com/time-slips-dyno-128/went-dyno-other-day-473544/
I upgraded to the 2.0 and went with some 720's on top and bottom and the AFR's are in the low 11's. I haven't had any starting problems with the setup. I'm happy with it and I love the timing adjustments. Mainly being able to retard timing from up top where it was 33-35 degrees advanced @ 100% load. This is the most current dyno for the car.https://www.rx7club.com/showpost.php...8&postcount=68 . I was getting some hesitation up top and when I looked at the logs it was going super rich so I bumped the timing a little and leaned it out. So now it pulls to redline a little better now. I think you can get away with going with some 550s+720's, but I wouldn't go beyond 10-11psi on a stage one. There is definetly more headroom with the 720x4. If you have a Walbro 255 then going with an aftermarket fpr made things easier for me. For tuning anyways. For a Stage 3-4 I would go with something like a Rtek 2.0 or standalone with 720's and 1000's. Well thats what I plan on doing, just dropping in some 1000's on top. I've had the turbo for 4 years now and its still strong. ;) |
Stock S4 with twin scroll removed and hole blocked off.
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why you block off the twin scroll?
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To me it looked like with the twin scroll plate fully open it still would block the passage going into the turbo. Plus Brain at BNR ported the turbo so it doesn't have the offset holes anymore. They are both the same size. I think it helps with the top end.
Some people might disagree, but it works for me. You know what saying. :) |
thanks for chiming in and clarifying things. Looks like I will just end up with 4x720cc's to be safe.
Tuning is going to be different for me because I don' have a standalone and can't do anything with my timing but I'll tackle that when I get to that. Right now I have to prep the car for the turbo. |
Even with 680's in the primaries you should be ok. If already have them, do a couple of pulls somewhere and see where your A/F's are at.
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naw. so far i have 2x720cc's and the fuel pump. I'm kinda waiting to make up my mind about the primaries. I still don't know especially since I'm going with a stage 2 now.
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wait. the 2.0 will run 720/1000's right?
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bump
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Hey, if your looking for a hybrid, you can get them done cheaper than BNR sells them. I would highly consdier BNR if you are using a s4 turbo because of their new machined wastegate with new wastegate door. I guess you can port it yourself, but you can only go so big without doing what BNR does
But for a s5 turbo you can port it out bigger yourself and go to a turbo shop and pay around 500 bucks to get it rebuilt witha to4 intake side. You can also get the exhaust fins "clipped" like bnr also. The guy that rebuilt my turbo first threw on a 60-1 , but it was nowhere near to fit. T2GTUS told me they used to put a .5" exhaust manfiold flange to create more clearance. Doing that and a little grinding would probably get the 60-1 tp fit. |
I have a FEED hybrid...according to their website (using google's translator), it's dynoed @ ~390whp
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Originally Posted by X-JaVeN-X
(Post 7176504)
I have a FEED hybrid...according to their website (using google's translator), it's dynoed @ ~390whp
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Originally Posted by skatingsamurai
(Post 7180190)
jesus thats way to much. im just looking for something off a 4x 720 setup. BUT BUT BUT if the rtek can do a 720/1000 setup??? then maybe something like a bnr stage 2 equivilent.
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well i just checked the rtek 2.0 faqs and i can set it to the 4x 720 preset then tune it from there so i guess i can do a 720/1000
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