1bad535

With the Gtech its kinda hard to calibrate %100 exact, but I know its +/- 10%. The rpm on the gtech is about 100 rpm +/-. Mile per hour is also about 1-2 +/-. But as far as calibration its pretty accurate. There was a track near by where i live but recently closed down (LACR, Los Angeles County Raceway in Palmdale) I used to setup the Gtech on my other cars & results were very identical, once again +/- 10 %. Just because other cars are lighter and have more HP doesnt mean that its faster in all cases, I hear about 1000hp supras run 11's but then there are 600 hp mustang 5.0's that run 9's. Im not saying you're incorrect but those are indeed pretty accurate results that i got. As soon as the nearest track opens, (california speedway in Fontana) I will go test the car & post results.

As far a TTV8 BMW released the some info on the X6 with TTV8, As soon as the put it in a 5 series I will definetly go in for a trade in .

EuroCarFan

Man, that's just amazing how cheap it is to mod this car and get some extraordinary results.

MRV99

I can understand your thoughts on this. But you are comparing apples to oranges. When you start getting up into that type of horsepower you have to deal w/ delivering that power to the ground. Just because add tons of HP does not mean that you will see similar drops in ET. When I added 150+ hp to my mustang I needed do suspension work in order to take advantage of the HP gain and even then it took some time to optimize the real power meaning lots of track testing. You are talking a gain of what 60HP I don't see this over coming the Independent rear suspension on this car and causing it to not be able to handle it.. I am sure that the tires are braking loose but what about the Electronic nannies? I still have a really hard time believing that a car that weight is 3700 lbs before you put the driver in the car hit these numbers. The 1/4 mile times on a stock 535 is what 14.0 to 14.5. I find it really hard to believe that 60-70 hp reduced the 1/4 mile time by 2 sec. That is a huge feat for just bolting on the HP and nothing else even it the stock is 13.5 in the 1/4 I would have a really hard time seeing this. I really do hope that the G-tech is correct because if that is true then the 535 will become the new stealth racer and the M5 will only be reserved for people looking the name plate. I wonder what would happen to an M5 if you put 60-70 hp do you get 2 sec in return? I hate to be a skeptic but I have spent too much time wrenching engines looking for .1 sec on the track to believe that 70 HP found 2 secs.

info@trinityautosport

+1

1bad535

You got a point, I completely understand you. From my experience my car bone stock did 13.6-13.8 @ 102-104 Range, it was very consistent due to the wonderful steptronic tranny, I can understand people not being able to believe these times, I was very impressed also. I think the +121 rwtq addition is what also made it happen. As far as suspension work BMW has pretty dam good suspension, I initially thought that there was going to be a major traction problem, but it went smooth, I launch my car with the DCS off, & have no problems leaping forward one car then boost taking care of the rest . I also have an 03 cobra, when I added 60-100 hp there was a major traction problem, but mustang is a whole different car. 03 Stock did 13.5 with 390 hp about same weight as the 535 but still 535 did 13.6 with only 300HP. If you compare difference between 535 and 335, is a little. 535 is only about 150-200 lbs heavier & for some reason makes a little less hp on the dyno. If you go to the e90post forums and research what a stock 335 does in the quarter mile, you'll soon find that the do 13.2-13.5. I have about the same mods as Terry who is the owner of the Juice Box, but his car does 12.0@116. The other thing that makes a difference in you're cars times is the altitude of where you are at. Also the M5 is a lot faster, as you know the faster you are the harder it is to make a difference in you're times so 60-70 hp on M5 wouldn't achieve results that you can do on 335 or 535 with same hp additions, I believe that 60-70 hp more on my modded car would not achieve the results that i did with 60-70 hp over stock.

HotLap

Thanks brother for the detailed information This one gets printed out and saved in the 535 file for future reference!!

arcticT

It would be interesting to see these results duplicated a couple more times on the Gtech. I would love to get mine into the 12's!