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06-27-2014, 05:25 PM | #23 | |
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06-27-2014, 05:51 PM | #24 | ||
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06-27-2014, 06:49 PM | #25 | |
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270-290 rwhp (what is normally seen as a baseline) + 120 rwhp = 390-410 rwhp. On pump gas with no meth and no mix of E85. I can't wait to see what those numbers will be. |
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06-27-2014, 07:42 PM | #26 | |||
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Next will be attempting e85 only. I'm not going to mess with race gas or meth. Good so far, and I use mine hard, tracking, launching, burnouts etc. A fairly involved bolt on. Took my shop nearly 20 hours but it was their first time, so an experienced shop should be quicker. Quote:
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Not too much you can do with the JB4, maybe a custom map 6. But my best results with JB4 was mix in about e40 and use map 5. It was fast but had some gearbox/drivability issues, hopefully you don't experience the same. Last edited by Nugget; 06-28-2014 at 09:40 AM.. |
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06-27-2014, 10:19 PM | #27 |
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Yeah that is a fair call. I have a manual so the clamping force issue won't be present for my application. I do love the auto tuning feature of the map5. Can stick whatever fuel quality in there, whatever temperate and whatever barometric pressure and it will tune accordingly.
Best of all worlds would be a flexifuel Cobb haha. Can't win them all! Wish we could get replacement ECU's for our cars like the 90's stuff could. Thanks for posting this for us and for Vargas for the kit and for PTF for the custom tune. You're all pushing our platform forward nicely |
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06-28-2014, 11:55 AM | #28 |
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I would much rather have a tune that properly does fuel and timing control as well as boost as it came from the factory than slapping on a resistor box like a JB which really isn't anything more than a boost controller. For me it will always be way more superior doing a proper flash tune changing parameters in the OEM engine computer than just lying to the computer with a JB. A number of guys have had their DCT transmissions start slipping because of a JB type tune that does not report real values to the transmission as it needs to trick the engine computer. You can fool the engine computer but you cannot and no one fools the transmission computer.
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06-28-2014, 12:14 PM | #29 | |
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and when it comes to a DCT it is where the power is being made in terms of RPM. im not a genious about this stuff, but before I decided on starting my own turbo project I did some research and asked questions, instead of just taking a shit on everyone else progress. nice work OP
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06-28-2014, 02:44 PM | #30 | |
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06-28-2014, 09:01 PM | #31 | |
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JB4 is a good system for guys who are jst starting out and doing a mod at a time, and maybe never getting to FBO or turbos, etc. I have learned from some pretty sharp guys that what you are saying is true. but to keep things in perspective JB4 works for about 90% of guys doing minor to moderate tunes. A true flash is superior regardless of mod level, so don't take this the wrong way. But, I never thought i'd ever get to the level i'm at. If the OP is like me he may have started out thinking a jb4 and CAI was as far as he'd ever take it Looking back I wish I had gone Cobb from beginning. but that's part of the learning process I guess.
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06-29-2014, 03:37 AM | #32 |
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Good numbers for pump gas cant wait to see what you get on e85. I plan on doing 100% e85 when the new hpfp pumps from vargas come out soon...what kind of boost did you make on that higher hp run? Ive gotten as high as 21.5;bs boost on mine. The week after working on my tune it got hot here in vegas so no dyno time till it cools down. I havent had any slippage on the dct. I love the new turbo it pulls hard to redline. It sounds so Mean on cold start my neighbor with an open header race car came over to see what i did to it.
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06-29-2014, 07:29 PM | #34 | |
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That being said, from what I've read about RB and Vargas products being somewhat of a gamble with communication/quality/shipping; I wouldn't spend the money on tuning; install; and transmission upgrades for 30 more whp. But that's just me. FWIW Dino dynamics reads low but nowhere near some of the numbers that are being speculated here. When my n54 was jb4ed/down piped/ and DCI'ed' it made 412/467 to the wheels with an E25 mix. I applaud the advancement for the n55 and understand the passion and vision; however the practicality of this whole situation has me scratching my head. The debate over jb4 vs Cobb vs Vishnu is null in so many aspects. And LOL at stand alone DME for these cars. So many of us would be on our second or third engine/set of turbos with stand alone engine management. |
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06-30-2014, 09:06 PM | #35 | |||
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Not sure, looking at local dyno tuning options now. Quote:
Also I think people overestimating this turbo. It doesn't put the N55 on the same level as a N54 with RBs, more like a N54 pushing the stock turbos hard. Which is fine with me, coupled with a DCT that still equals a quick car. For reference this is a car with RBs on the same dyno. http://www.1addicts.com/forums/showthread.php?t=994580 |
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06-30-2014, 09:33 PM | #36 |
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07-01-2014, 01:06 PM | #38 | |
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07-01-2014, 03:07 PM | #39 | |
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It'll be cool to see how far people take the N55. Hopefully it doesn't break for awhile now that good power is being pushed.
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07-01-2014, 03:12 PM | #40 | |
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08-05-2014, 08:11 PM | #42 |
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I wanted to try and get it done in one go and avoid logging on the road so I went to a local tuner to do it on a dyno.
He's has only done one BMW before but he got a N54 car working well on 100% e85. Unfortunately he wasn't able to get very far with my car, so I have gone back to Pro Tuning Freaks. |
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08-06-2014, 10:17 PM | #43 | |
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08-07-2014, 10:10 AM | #44 | |
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