Justin2JZ

MK4Sup_isF

iTrader: (10)

Yes I have seen that dyno sheet. What's good about that sheet is the 50whp gain with raising the boost. The baseline number can fluctuate between dyno. How else would you explain a 427whp DCT car that is lighter than an auto ISF with 403whp with street tires is posting identical number through the 1/4 mile. If anything, the M also has more tq at down low too.

Dynosheet from the same dyno can only be very reliable for before and after gain. I'm curious what would an ISF or a e90/92 would dyno on that same dyno

DrRick

that ISF was also on a prepped dragstrip. the numbers from MT are not. that makes a big difference...

Justin2JZ

Im pretty sure the F was at a prepped strip. If you look at MTs 1/4 mile its regular concrete.

MK4Sup_isF

iTrader: (10)

Yeah MT did stock F though, stock F dyno in only at 335-355whp. That's not even within the ballpark. I understand that the strip is prepped.

EAS used SAE correction and it reads 412whp and 397wtq

DrRick

btw....it looks like cayman did that 12.1 on drag radials and had a DA of -835. add that in with the prepped track and thats pretty significant....

MK4Sup_isF

iTrader: (10)

His latest time was actually 11.8 at 119mph. his high trapspeed with DR is 121.4

Originally Posted by caymandive View Post
]It's been nearly 2 years since I've hit the drag strip and I don't even own a set of drag radials anymore, but I wanted to see what the car could do without them. I wasn't able to get back in the 11's due to grip off the line, but I was pleased to have hit a 12.0 ET twice today. I had to play around with the tire pressures and feathering the throttle. Started off at 36psi and worked my way down to 24psi then back up to 29psi where I seemed to have the best luck. If I had grip I'm certain I would have been back in the 11's and with the way the car was running I think I could have hit 11.8x with DR's. I really like the SIKKY/Borla combo on this car.

Run details:
60' 1.937
1/8: 7.923
1/8: MPH: 92.18
1/4: 12.090
1/4 MPH: 118.47

Weather:
-787 DA


I hit the drag strip for the first time this year hoping to beat my previous 11.914@120.58 run made 3 years ago and was finally successful! This is not easy!!!

So my best today was 11.879@119.63. A nice tail wind, -892 DA and nailing the shifts perfectly (hitting the limiter on each shift) were the primary contributing factors. Since I ran my 11.914 run, I've also added lighter BC Racing Coilovers, Lighter Borla exhaust and slightly lighter 18" drag wheels utilizing the same 245/40/18 MT Street ET tires.

I had a great 1.827 60' this time, though I was able to hit a 1.826 last year. Trap speed was incredible today! I managed several 121 mph runs with my best of 121.46. I also had the pleasure of running a Camaro ZL1 (mods unknown), the new C7 Vette (mods unknown) as well as an E63 AMG with headers, exhaust and drag radials. One of the close runs between the E63 and I resulted in a 1.870 60' to his 1.874 and a 12.027@121.04 to his 11.850@120.08. Basically each time we ran whoever got off the line soonest won the race. It was that close.

A few videos and time slips are posted below.

Pqbrown

iTrader: (9)

I couldn't agree more on every point you made. The gtr seems to be the most appealing to most of us just based on it's Japanese reliability. However it's no lexus, it's so hard to discount reliability, good resale, and long term durability. If they could only hit it right like the current gtr or mk4 supra they could really shake the whole segment up.

DrRick

a DA of -892 is pretty significant. each 1000 ft of DA equals a little over a tenth, either way.

and btw...those MT's are NOT the same as OEM tires used on normal cars.

MK4Sup_isF

iTrader: (10)

You didn't see the first half of my quote? That was done with 255 Michelline PSS and before he upgrade to BC coilovers

Here is the video

DrRick

Still...prepped track and favorable DA. I'm not trying to discount what cayman did. But I'm not sure his as fast as a stock M3/4. When customers get em and they're running in the mid 11's, you'll see that I'm right.

Regardless...look how far we've come. I remember getting a GS400 and DARING any sedan to step up. Now...V6 Honda accords are just as fast. I also remember dreaming of a Mustang LX 5.0 notchback (because they weighed less). 225hp/240tq. Times have certainly changed.

Now I dream of a 2R Underground LP 560 with 1800 whp. Smh...

dannyk8232

Whoa whoa whoa.....

let's not forget the 1988 Camaro Iroc-Z with a 5-liter v8 and a whopping 170bhp

MK4Sup_isF

iTrader: (10)

I'm not disputing any of that. Hell, a 4400 lbs e63 wagon is posting a faster 1/4 mile time than even many current super cars. Cars have to be better than previous gen if they are going to have any chance of a successful sale number. All I pointed out that the 427whp might be a little high. That's why I added the dyno chart of EAS corrected number of 412whp. Even then, who knew what factors are involved. Dyno numbers should be taken with a grain of salt. What is more constant is the before and after gain from the same dyno

DrRick

Tuned Port Injection, baby!!!!

lorenr

iTrader: (1)

The 1988 IROC Camero was quite the piece, but lets look back to the mid sixties at the 283 cu inch Chevy II. The car could be ordered with the AFB four barrel 283 plus a four speed in any body style. Gross horsepower for the day was a whopping 220.

Admittedly not as hot as the IROC. The cylinder heads were not nearly as good.

Check this out.
Turn up the sound and have fun.

You'll notice everyone is older, very few in the bleachers. A purest sort of thing. The race is a Shootout meaning only SS/K's are allowed.

All motors are either 283 4BBL, 4 speeds (same block, heads and carb as built) or 289 4BBL, 4 speeds (same deal) Have to read the rules if you want more information, but these cars a certainly no joke. The people who put these cars together are VERY smart.

Loren