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04-30-2010, 03:29 PM | #1 |
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What's up with the Dinan Stroker? Latest C&D Test
Pretty disappointing numbers. 12.5 sec quarter, 9.1 0-100. Trap speed showed some potential, but c'mon, seems like even with traction issues the car should have been faster. Basically numbers match the tests from R&T when they did the drifters test (I'm sure the rubber there was well scrubbed!).
Is this a stroker problem or a Dinan problem- ie- I have heard that putting the power down to the potential is a problem for all strokers, or is this an ugly rumor???
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'08 E92 IB, Gone '10 GT3 now in my garage! '10 X5 3.5D '12 E91 Xi Wagon MT sports package Last edited by Montoya; 04-30-2010 at 09:12 PM.. Reason: 0-100 corrected time |
04-30-2010, 07:08 PM | #2 | |
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08 E92 M3 DCT - Bolt Ons - 60-130MPH 10.71s - 11.88 @ 118MPH - 377WHP ESS VT2-625 SC 60-130MPH 6.80s - 11.30 @ 129.3 MPH 586WHP / 379WTQ ESS VT3-750 - 60-130MPH 6.14s - 10.81 @ 135.13 MPH 690WHP/463WTQ Shift-S3ctor E92 M3 - 1/2 Mile Trap Speed WR - 174.13 MPH |
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04-30-2010, 09:20 PM | #3 |
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Major pubs like R&T, MT, C&D etc account for altitude and atmospheric conditions. I can't find it on their site, not up yet but it is in the latest June issue.
Here's the test panel data: 0-60 4.2 sec 0-100 9.1 sec 0-140 18.1 sec 1/4 mile 12.5 at 118mph 5-60 4.9sec 200ft skid .92G Fuel economy 14 mpg Braking 70-0 156 ft
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04-30-2010, 11:04 PM | #5 |
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I expected better numbers, but still 118 mph trap is significantly higher than stock so it is faster. However, it is comparable to a fully bolt on M3 (see DLSJ5 sig). For that much money, a bit disappointing. Must have had traction issues too. DCT should improve it more.
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04-30-2010, 11:58 PM | #6 |
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Disappointing. If there's traction issues they should have slapped on some 295 AD08's on 10.5-11" rim.
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05-01-2010, 01:15 AM | #7 |
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most people who say they are crap numbers are expecting SC gains, it just isn't gonna happen. totally different animals. the stroker is what it is. if you want drag strip bragging rights then def get a SC kit
to each there own, i would rather get bolt ons then spend 25k on the stroker
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05-01-2010, 01:24 AM | #8 |
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A++ on Dinan's behalf for effort , but F++ on the ressults , just not worth it , with 25k you can supercharge your car and do pistons rods and lower compression and get yourself a 700+ hp monster....
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05-01-2010, 01:47 AM | #9 | |
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The whole stroker thing seems like a big waste of $$$
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05-01-2010, 07:41 AM | #11 |
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Like said by H Bomb - If you just want to drag race that is not what the stroker is for. It's still a fairly small engine even with the added displacement. You're only going to get so much out of it NA unless you do some crazy race track only build that would be totally un-driveable on the street. If you want to drag race you should be looking a displacement and start with American muscle or AMG...
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05-01-2010, 08:35 AM | #12 |
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I don't think Pencil Geek ever had his RD stroker tested in the quarter and I haven't seen a timed acceleration run published or posted other than this latest Dinan test. That's partly the reason for this post, to see if this is an anomaly or if there are better results out there...
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05-01-2010, 11:05 AM | #14 |
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05-01-2010, 02:03 PM | #15 |
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05-01-2010, 07:05 PM | #16 |
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I can say one would choose a stroker over a sc because of the pure bread motorsport they are driving. They want to retain the N/A feeling/sound/driveability/linear nature compared to the more powerful boosting. They don't want to add any weight where the car wasn't designed for. As minisucle as it may be people who consider a stroker consider these facts. They are purists. On the other hand many of the guys who sc do care about numbers and are running there cars balls to the wall as a car should be.
Currently I am very torn between the two. I look at it this way. What am I going to use the car for and how long do I plan to keep her. If I am buying the car to DD it and want to handle any street buddies and do some tracking then by all means let me sc and be happy with my results until I sell her. If I plan to get a very individual m3 and garage queen her then me personally would stroke her and keep her in my fleet till the day I die/give her to a loved one. At least thats how I look at the whole debate.
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05-01-2010, 07:54 PM | #17 | |
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05-01-2010, 10:08 PM | #18 |
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Totally agree! Stoker give you linear power compare to FI. But it does cost a lot more $/hp increase.
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05-01-2010, 11:35 PM | #19 |
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The centrifugal SC will give you linear power as well, it's not a TC ...
My $0.02 ( in case you are not looking for more than +100 bhp ): A SC provides noticeable power increase bolted on your existing engine, regardless of it's condition. The exhaust can remain stock to produce the additional power. A stroker provides a rebuilt engine with bigger displacement, you basicly get a new engine in case the job is done right. The exhaust has to be modded ( deletion of catalyst ) to achieve a noticeable power-gain. You can compare the ESS-VT1 SC kit with a Dinan stroker or RD46, power wise. The stroker will be reliable for sure, the SC kit's will still have to show what we are dealing with ( although I don't have any concerns with mild boost ~ 4 psi, even non-intercooled unless you live in Dubai or comparable places ). In case SC's would not whine I would prefer the SC. So I'm still waiting whether a stroker-kit will be released without the need to bore the block, even when this would mean that you will be probably limitet to 4.4 ltr engine displacement. Any stroker will increase piston speed as well, which isn't a very good thing on already high-reving engines. |
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05-02-2010, 05:49 AM | #20 | |
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This was the same I was thinking of. In my opinion the stock 50mm throttle bodies are big enough, especially when taking into consideration that the trumpets within the air manifold will stay at 50mm!? So what sense does it make to bore the boddies by 2mm when the trumpets are the bottleneck? |
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05-02-2010, 06:41 AM | #21 |
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Here is the dynotest from ESS comparing Roberts RD46 NA with catless Ericsson exhaust vs VT1-535 on stock exhaust. I think this illustrates well what Robert mean. Stroker has more bottom end torque, VT1 has more top end power.
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05-06-2010, 01:31 AM | #22 | |
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