John B

iTrader: (10)

Unfortunately my friend has had problems trying to extract the video from his camera due to software that couldn't recognize the digital disc in the camera and after copying them to a computer hardrive and deleting the original camera files, the PC files appear corrupted so I may not ever be able to post the video's so keep your fingers crossed that the corrupted files can be deciphered!

Bottom line:

Here's the quick and dirty running with my Hoosier QTP DOT street tires and a mild 3900/4000RPM takeoff with the DA in the +1000 to +1100 range:
60' 1.793
330' 4.871
1/8 7.436
MPH 96.64
1000 9.659
1/4 11.521
MPH 121.66

I made a total of 4 passes. I let the air down to 14.5 lbs in the Hoosiers before starting the runs. The first shakedown run was leisurely 12.276 @ 119.17MPH with a 2.10 60' time since I made a stoplight takeoff to test traction and wound up hitting the fuel shutoff (7100 RPM) shifting into 2nd gear even though I shifted at an indicated 6600RPM on my tach (there appears to be a bit of “tach lag” like the ’06 ZO6’s experience). What you also need to realize is that this was truly the first opportunity that I have had to nail the car to WOT through all of the gears since I have had next to nothing for traction on the street. I was grandma shifting also to ensure that the ZO6 clutch would be grabbing good and enabling for crisp shifts without sticking or locking up.

The 2nd pass was made in the same fashion except leaving the line about 3500RPM, slipping the clutch and dropping the shift point to an indicated 6500RPM. The motor bogged (since traction was good) and this netted a 12.059 @ 120.56 MPH and a 2.03 60' time.

Now that my confidence level was elevated due to the good clutch control and the fact that the car would not go sideways during gear changes I was ready to push it a little harder!

On the 3rd pass I lined up against a bone stock yellow C6 Corvette with an LS2 automatic (very nice guy!). It was time to concentrate on the launch and pay attention to crisp shifts! I left the line at about 3800 RPM, and since I didn't nail it right away the motor bogged just a bit and I was on my way to a 1.847' 60' time and my first ever 11 second pass netting an 11.732 @ 121.52 MPH!!!

On the last pass, I had the line official walk over to my car and give me a verbal warning that if I ran any faster that I would need additional safety equipment or face getting the boot. I confirmed that if I kept it to an 11.50 ET or slower that I would be okay and he gave me a dirty look and said “okay”. I lined up against my friend Steve Barker (who has been kind enough to let me use his personal chassis dyno to run my car on) in his absolutely beautiful ’67 red C2 convertible (hardtop on for racing of course!) and I launched at about 3900-4000 RPM synchronizing nailing the throttle as I popped the clutch. This netted a bit of wheel spin (felt like the right side!) but the car pulled well out of the hole as evidenced by a 1.793 60’ time. I hit 2nd gear hard shifting at 6500 RPM, experienced a bit of wheel spin but was able to keep the car straight. I slammed 3rd gear at 6500 RPM and hit a good crisp shift as well at 4th gear at 6500 RPM. I was rewarded with an 11.521 @ 121.66 MPH pass Decided that I shouldn’t push it since 11.49 was only 0.03 seconds away and went home early for a change!

What really shocked me after the fact was that while airing up the Hoosiers in the pits, I noticed that the area’s behind the tires (the tail pipes and quarter panels) reveals absolutely no signs of rubber on the drivers side of the car! It appears that the posi unit in my 8.5" rear end is toast Further review of the video tapes also suggest that the drivers side tire is not doing any kind of real burnout. Time for a Detroit True Trac!

Hopefully once I am able to tune the motor for optimum power with my HPT software I can delete the MAF and go to speed density tuning which I am estimating should add another ~3+ mph to the trap speed which when combined with a hard launch, true posi and sticky tires should have this car knocking on high 10's with an LS7 in virtually complete stock form in a 3600+ lb daily driver street car

Patrick G

iTrader: (14)

Kickass John! That's hauling *** in a big car...especially with such mild street manners.

gnx7

iTrader: (28)

what does your car weigh with driver John?

Great times for just out of the box. I thought they had a 7,000rpm redline?

Katech_Jason

iTrader: (19)

Nice trap speeds. I'm really excited now to try out our LS7 SS with 100 more hp and 100-200lbs less.

Iroc313

iTrader: (1)

very nice

Wants an LS1

yea, i cant wait to try it either

John B

iTrader: (10)

Thanks for the positive feedback guys!
I'll find out for sure when I weigh it tomorrow but I suspect it was close to 3650 with driver when I raced it due to the 5/8 full fuel tank.
The factory redline is 7000 RPM and the factory fuel shut-off is set at 7100 RPM
I'd guess low 10's @ 131++mph!!!

G-Body

iTrader: (4)

WOW, congradulations on the swap. I bet you suprise a lot of people on the street with times like those, I can`t believe that you will be able to get into the 10`s with a virtually stock motor, these LSx motors are great.

Richard@WCCH

iTrader: (3)

John, you are truly having too much fun!! You have the most desireable Monty I've ever had the pleasure of watching (from a distance). Thank you for posting your results. Your blazing a trail for other LS7 swaps and your expriences are invaluable.

Happy Hot Rodding.

Richard

CamTom12

iTrader: (1)

great runs!!

LookinAtMyPlate

iTrader: (2)

really nice numbers

owen v8litew8

Wow.

John B

iTrader: (10)

Wow, what a compliment....thanks Richard!!!

I just got back from weighing the car in strip trim (just like it was raced with 5/8 tank of fuel) and to my surprise the car weighed in at 3320 and with me in it 3520 I forgot that the centerlines with the DOT tires weigh 48 lbs less that my 17x10 wheels w/315 tires. If I ditch the mini air tank I had in the trunk, laptop, camera case and 1/4 tank of fuel I could ditch another 75 lbs getting the car down to 3245 and 3445 with me in it!

DMill

Newbie here to the forum. Wow! I love it ... another "Heavy Chevy" into the 11's on DOT rubber! My brother recently bought a new Z06 and I've driven it several times. That LS7 "mill" is a technological thing of beauty that gives both un-gawdly performance and can return over 30 mpg loafing along on the freeway.

Gotta ask: You say 487 rwhp ... What's drivetrain loss on your car? Even if it's only 15%, that computes (487/.85) to 573hp at the motor. I know the LS7 is conservatively rated at 505, but to be almost 70hp shy sounds a bit much. I know dynos can vary considerably, but can you explain why (maybe?) the big difference?

I say another above 'cuz I have bone stock appearing '57 Bel Air "sleeper" that's gone 11.79 at 114, weighing in at 3800 with my 200 lbs included. A healthy 408ci small block coupled to a column-shifted TH400, with 4.10 gears and some DOT M/T ET Streets does the trick. It's 1.62 60-foot, pulling the left front about 4"-6" in doing so. Go here for pics.

Anyway ... CONGRATS on the great pass. Welcome to the 11's!

rickbat

iTrader: (3)

Wow… That is simply amazing John a stock LS7 with no tuning running 11.5… Looks like you will soon have a 10 second car… Congrats bud!!!

PS:
Let me know when you want to trade cars…

maro67

that is just plain sick man..... when is a cam going into this i wanna see 9's lol thats awsome man love the monte ur doing things right dude good luck on breaking 10's that should be no problem .

Kenova

iTrader: (4)

Maybe it's time for a 12 bolt too? .....and lay off the twinkies
I can't wait to see what the Monte will do with a good tune. I see a roll bar in your future.
Ken

ls1/srt

holy moly sleeperness in effect nice car dude. good times good luck!

ls1/srt

btw how much did that whole conversion cost?

ls1/srt

and would you trade for an ls1 camaro ? just had to ask.