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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old May 20th, 2017, 10:28   #106
Macradiators.com
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Rollers or no rollers 420hp bmw just did 11.6s on 402m
A5 manual transmission and worse injectors ever. 420hp did 11.9s
Both cars street legal diesels, fully equipped.
These guys drove 800km to get here. Geez

Its time for bigger turbos for bmw.

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Old May 20th, 2017, 15:38   #107
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Not in this country. Most of the dynos used for emissions are small roller dynos.
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Old May 20th, 2017, 16:25   #108
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The size of the dyno rollers doesn't matter for emissions testing because vehicles are tested at speeds corresponding to national speed limits and never tested anywhere near their rated power. Tire deformations are lower and do not factor in much when the key is following a speed-time course rather than measuring outright acceleration rate and power output. It is nevertheless quite certain that certification centers are not using Dynojets, Dynapacks, Mustangs, or any of the brands commonly used in the aftermarket LOL. Each testing body will set standards and procedures, and repeatability and consistency are far more important than what technology of roller is employed.

Edit: About dyno losses, AWD and slushbox automatics will have larger driveline losses, but not in the order of 30% and certainly not linear to the engine output
http://forums.tdiclub.com/showthread.php?t=75062

If there's ~100kW lost at the driveline or tires, you will definitely see this with infra-red imaging - actually you won't even need to - your tires will certainly melt and your transmission/differential will need forced cooling with massive heat exchangers.
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Old May 21st, 2017, 01:04   #109
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Quote:
Originally Posted by Macradiators.com View Post
Rollers or no rollers 420hp bmw just did 11.6s on 402m
A5 manual transmission and worse injectors ever. 420hp did 11.9s
Both cars street legal diesels, fully equipped.
These guys drove 800km to get here. Geez

Its time for bigger turbos for bmw.

Sent from my SM-G935F using Tapatalk

Impressive time for the A5 - What kind of timing gear are you guys using? Please don't say a casio stopwatch.
The reason I ask because even with 440hp/900nm I can't get into the 11's
This is with 900nm take off from the line in a TIP gearbox
Best I can get at santa pod is 12.3
At another drag strip I managed 12.1
But never 11's

So far you have stated a 100 to 200 of 7.x whereas everyone else is in the 11.x with sameish power
1/4 miles time that appears be unrealistic

Would be nice if you can post vcds logs with speed and time stamp.
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Old May 21st, 2017, 10:34   #110
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Official certified timing gear from USA, its international event.
You can contest any dyno number you want, but you cant comment about timing :P

Today we had cars from BG doing 9.1s , Moldova GTR godzilla done 8.7s , gti 9.5s , 911 1250hp porsche constant 9.7s, r35gtr 1000hp 9.8s
No bike went under 10s, 10.2 was best

Tdi cars were a disappointment, lupo tdi 4x4 12s , lots of 2.0 pd in 12.x seconds

2 identical cars at 400hp from different tuners will never go identical..1 will always beat the other
Owner will present his car on the forum shortly.
Details later.

Meantime from car's CAN


Lots pf cars 3.0 doing 12.1-12.2 , 2.0 class was not so strong, lots broke
BMW doing constantly 1.6-1.7s 60ft and about 10runs at 11.7 , 3 runs at 11.6s
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Last edited by Macradiators.com; May 21st, 2017 at 11:08.
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Old May 25th, 2017, 23:06   #111
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Congratulations! Looks like eastern europe cars are much more powerful and faster. Actually not a surprise for me.
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