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03-11-2009, 03:36 PM | #1 |
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Roundel Cover Story of Dinan S2 135i
Did you guys catch the long article (and cover story) in the last issue of Roundel?
Thought it was very fair, reviewer picked up a brand new stock 135i on the way to Laguna Seca (which he took on several backroads), so he was able to compare both the stock and the 398hp-claimed Dinan S2. I don't think there was one thing I disagreed with. He seemed to oppose his colleagues' prior review (June 08 I think) in Roundel, especially as far as looks. He was left utterly surprised (so am I) how the Dinan S2 runs on the stock rims and skinny tires given the vast amount of power and tq (421lbs). His second gripe on the S2 car (which again I wholeheartedly agree with) is that the stock brakes (despite being 6-pot up front) don't cut the mustard on the track, even for a stock 135i. One thing he didn't mention, but I am still baffled at, is that the S2 runs on stock airbox. I think after the remap, bigger intercooler and oil cooler, the stock intake becomes a clear bottleneck. People here have claimed a 20whp increase with bolt ons like AFE, and Dinan offers a cold air intake for all it's other cars, wonder why they decided to not tinker with it on the 135i (the brakes and wheels I kinda understand in the sake of keeping the $$$ low, but this should be well worth the bang for the buck)... Anyhow, check it out, a worthy read.
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03-11-2009, 03:44 PM | #3 |
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The real question is, did they change the pads and fluid? If not, then that would be the obvious next step before going with a BBK.
It was a fair review, but I was hoping they would quantify the improvements in some manner. They had a stock 135 and the S2 135, so it could have been done pretty easily. |
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03-11-2009, 03:46 PM | #4 |
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Latest issue, just got it this Monday.
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03-11-2009, 03:49 PM | #5 | |
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Yeah, I too hoped it would be a S2 vs stock review, but alas. Granted, the stock car was brand new and journalist was asked to brake it in nicely (under 5K rpm at all times)...
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03-11-2009, 04:05 PM | #6 |
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I just read that article as well. I was not aware of the brake failure issues on 135's that he had mentioned though.
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03-11-2009, 05:34 PM | #7 |
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Didn't have a chance to read the article but looking forward to it. Dinan has been pretty impressive with the N54 engine, I just find for the price, there are much better aftermarket options.
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03-12-2009, 02:52 AM | #9 |
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I liked the review, fair and balanced. I wasn't aware of the 6 piston brake failure at all, in fact, my first time hearing about it. Dinan's S2 setup is ridiculous, nearly 470 hp and 500 lbs of torque at the crank if transmission loss is pegged at 15%.
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03-12-2009, 08:28 AM | #10 |
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03-12-2009, 08:38 AM | #11 |
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yep, he sure did. I remember reading those about 4/5 months ago. nothing to worry about though unless your a serious track person
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03-12-2009, 09:59 AM | #12 |
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That is funny. I somehow missed it entirely.
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03-12-2009, 11:34 AM | #14 |
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03-13-2009, 01:04 PM | #15 | |
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Mentioned something about the pistons themselves overheating? I would think there would have to be a way to get some more air through there and help dissapate some of the heat.
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03-13-2009, 01:38 PM | #16 | |
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Nordique, would be great if your friend allows you to post some pics that he took, especially in that secluded road near Morgan Hill the writer was referring to!
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03-13-2009, 01:38 PM | #17 | |
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The brake fade issue appears to be a problem with the stock brakes being put to tough use on the track. As a result, some people who track their 135i started using aftermarket track pads. The piston failure seemed to be a problem with the use of poorly-designed aftermarket track pads. http://www.1addicts.com/forums/showt...piston+failure |
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03-13-2009, 02:20 PM | #18 |
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I read the article, or should I say "advertisement", about the Dinan 135i. It was a good review, but it's hard to say it was independant and fair, since they didn't do a back-to-back comparison with a stock 135. Also, they seemed to pull the performance figures right from the Dinan website.
BTW, although I've only read Roundel for a year or so, I don't think I ever recall reading any mention of the other popular tuners (BMS or Vishnu). Kinda funny.
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03-13-2009, 03:01 PM | #19 | |
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As far as the airbox goes, seeing as how this is a turbo car a cooler intake charge will do much less than it would for an N/A car seeing as how the air has to pass through the very, very hot turbos.
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03-13-2009, 03:35 PM | #20 | |
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Truth be told, the only part of Roundel that isn't hit or miss is Mike Miller's tech letter section. That section is always golden. |
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03-13-2009, 04:03 PM | #21 |
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Can you expand on that pls? I am in early rounds of research as far as which ECU remap tuner to go with, so any color and prior experience would be appreciated.
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03-13-2009, 04:08 PM | #22 | |
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So sadly there is bias, would love nothing more for Roundel to be a 'shoot-out' comparo magazine of various tuner options out there and giving a non biased and unsubjective review,
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