Thanks T.C. The real test is going to be in Englishtown in the spring. I have Ben from Evosport sending me some drag radials for my stock M5 wheels. My goal for all these mods when I started this was to be in the mid 12's. I think I'll be there. I want to be competitive with the new E55. If you remember my Englishtown threads. A stock E55 ran 12.6 at 111MPH. He did it on stock tires, I'm cheating a little but who cares.
Hope to post some real numbers in the spring. now if only we can fast forward to April second.
I have not relocated the air temp sensors(that's rubbish) needless
Manny...I can tell you that without a doubt, unless you already have the Dinan CAI that includes the temp sensor change, the temp sensor upgrade is NOT rubbish. TonyS555 and I proved it on my beast with detaled analysis using the Autotap and Auterra OBDII readers by monitoring air intake temp, etc. If you live where it gets warm/hot, this mod will make your beast run like it's 30 degrees cooler than it is. I kid you not, this was one of the biggest bang for the buck upgrades I've done.
I let Dave Z test my ride this past weekend and he did notice the second gear to be a little tight but said there's nothing wrong. I think it's just me being anal.
Anyway, Englishtown sounds very interesting and I think you shouldn't worry about the new cars like the E55. Come on...SUPERCHARGE~!! It's a great vehicle but AMG got really lazy and just slapped a blower on. I hope to make it to one of these meets and see you in action.
I should pick up a G-tech Pro. After I fully break in my car I plan on seeing how far I can scare myself silly.
Originally posted by M5manny Ed, I don't have the pullies. I plan on doing them after the holidays.
I have not relocated the air temp sensors(that's rubbish) needless.
Manny ... I hate to say it BUT ... You are DEAD WRONG about relocating the IATS being "Rubbish" Tri-Flo is absolutely correct!!
In case you might be interested ... ->
I have a Brand New IATS that I bought from Don @ UFMotorsport. I decided to go the Dinan CAI route. It's just sitting in a plastic bag. PM me if you're interested.
Dying to see some 1/4 mile track numbers with that 3.45 gear.
My experience with precision accelerometers is they can provide good relative information, but cannot be trusted for absolute measurements. Measuring the launch, especially on city streets, was practically meaningless. Rolling pulls were the most useful.
I seriously wonder if the 3.45 gear will help the 1/4 ET. I base my skepticism on experience with Corvettes, where the similarly-torquey L98 doesn't seem to care if it's running a 3.07 or a 3.45. Sure, rolling start same-gear side-by-side comparisions result in the 3.45-geared car pulling (and feeling) stronger. But on the L98, a 3.07 gear keeps the motor in the max-torque range pretty much all the way through the traps.
Inversely, on a relatively peaky LT-1 Corvette, HUGE gains are possible with lower gearing (higher numerically). Those guys run 4.09's with great success. The ET improves because the gear allows the motor to spends more of the Elapsed Time in it's peak torque range on the lower geared car. There's more "area under the curve".
Don't get me wrong, a lower gear is a fantastic, fun, and practical mod. I'm just not convinced that it will improve 1/4 ET.
Alex5, call me in the office, my slicks will be here Monday, I can still order another pair for you, they have 4 left.
Ed, I'm convinced by the report I read, and the testimony of all of you. I'll P.M. you this morning.
Bill, I hear yah about not making a difference in the QTR mile. But, on the road being a terror. You're rite, the few times I have driven the beast since the intall of the new mods, the car is sick. In the QTR, I have my own theory. By getting to the sweet spot faster than stock gearing, the car makes more use of it's horsepower, relying less on it's torque. Since I lost about 500RPM in each gear, when I shift into second or third, the drop in RPM is only about 700RPM as opposed to about 900RPM before.This extra RPM keeps me close to me sweet spot.It's just a theory I have witnessed in Hot Import Racing in Englishtown. Those guys row through 5 gears to get through the QTR because they're spaced so closely in ratio.I need to hit fourth to do the QTR as well, so might as well make it worth having to go through 4 gears. I know my trap speed increased from before.There fore my E.T is bound to get better.
Only Englishtown will tell. By the way.My slicks will be here on Monday, all I need is the Spring to get here, and Englishtown to open.
540-aiite, save your money on the G-tech pro and get the Competition. Much easier to use and it hold more memory,i.e more runs.Hope to see all of you in Englishtown.
MIB, your car floats right? Come over to this side of the planet and come racing with us