MGB V8 new time!

mgbv8 · Post by **mgbv8** » Sun Aug 23, 2009 8:57 pm

Today I bagged a 18th mile trap of 6.90 @ 101.45

0-60 on the Wallace calc thing now shows 2.41 seconds

Time to give the old girl a rest now I think... More work needed for next year!.

stevieturbo · Post by **stevieturbo** » Sun Aug 23, 2009 9:21 pm

Congrats...what sort of 60fts were you pulling ?

Thats quite a drop in time

mgbv8 · Post by **mgbv8** » Sun Aug 23, 2009 9:27 pm

Cheers Stevie!!

60 foots were hovering between 1.59 and 1.63

Ian Anderson · Post by **Ian Anderson** » Sun Aug 23, 2009 9:55 pm

Well done

did you get both front wheels in the air?

Ian

mgbv8 · Post by **mgbv8** » Mon Aug 24, 2009 5:17 pm

No Ian!
My suspension mods seemed to have paid off. The front left wheel just got about 1" of air. So the car is launching pretty straight.

But the slo mo video's do show that I need to do some more stiffening on the rear I think. I'll stick them on You tube later.

Perry

bigaldart · Post by **bigaldart** » Thu Sep 03, 2009 4:11 pm

hi Perry, What is the wallace calculator?

Alan

mgbv8 · Post by **mgbv8** » Thu Sep 03, 2009 7:03 pm

Alan!
Yours is 1.68 I think

This site has great calculkators for all sorts of stuff. Very useful reference info IMO !

http://www.wallaceracing.com/Calculators.htm

Tricky · Post by **Tricky** » Thu Sep 03, 2009 8:59 pm

Well done Perry

Every time i think i am getting closer to your times

You pull another one out the bag LOL

mgbv8 · Post by **mgbv8** » Thu Sep 17, 2009 9:27 pm

Did it again today at the Pod.

10.66 @ 126.51
1/8th was 6.86 to 103.85

Wallace says 2.29 seconds now.

mgbv8 · Post by **mgbv8** » Fri Jul 20, 2012 8:05 pm

And last Sundays 6.57 to 106.17 at the 1/8th mile marker now gives me a new 0-60mph of 2.1 seconds

dbv8 · Post by **dbv8** » Fri May 10, 2013 8:03 am

Sorry Pel but that Wallace calc doesnt sit right with me.

Cracking time and speed for the 1/8th tho. How does the gearing stack up for the top end terminal? You running out of revs?

mgbv8 · Post by **mgbv8** » Fri May 10, 2013 6:15 pm

Not running out of revs Del. Just running out of power. Crossing the line at 131 around the 5100-5200 rpm mark. Way above my peak torque.

A sniff if gas will sort that out I think

I use the wallace thing as a reference mate. So I have the same algorithm applied each time i input the data. I also only ever use the same dyno for a similar reason. It may not be spot on, but I figure any error will be consistant and therefore any increase or decrease in perfomance will still show up?

mgbv8 · Post by **mgbv8** » Sun Jun 23, 2013 5:53 pm

Update from Fathers Day at the Pod.
New PB 1/8th mile data was 6.54 seconds to 108.99 mph.

Wallace estimates 0-60 @ 1.98 seconds

60 foot time was still below par at 1.56 seconds though ?

stevieturbo · Post by **stevieturbo** » Sun Jun 23, 2013 6:35 pm

From datalogs, 0-60mph on mine would be around 2.4s ( At Santa Pod...not a chance anywhere else lol )

That's on a 6.41 at 113.8mph 1/8th, 1.55 60ft.

I'd say given you're lighter than mine and auto, a sub 1.5s 60ft should be very doable
Plus I think you're tyres look wider ? I was on 10.5" ET Streets for that one.

So I think a sub 2s 0-60mph is a bit on the optimistic side. I think you'd need to be pulling 120-125mph in the 1/8th to be closer to that, although hard to say I guess.

mgbv8 · Post by **mgbv8** » Sun Jun 23, 2013 6:49 pm

stevieturbo wrote:From datalogs, 0-60mph on mine would be around 2.4s ( At Santa Pod...not a chance anywhere else lol )

That's on a 6.41 at 113.8mph 1/8th, 1.55 60ft.

I'd say given you're lighter than mine and auto, a sub 1.5s 60ft should be very doable
Plus I think you're tyres look wider ? I was on 10.5" ET Streets for that one.

So I think a sub 2s 0-60mph is a bit on the optimistic side. I think you'd need to be pulling 120-125mph in the 1/8th to be closer to that, although hard to say I guess.

Mine weighs in at 1200kg Stevie.
I shift the auto at full pedal.
Rear tyres are 9" wide.
My 60 foot time should come back down to the 1.4's when i hit the gas off the line.

As I've said before. I just use this as I do the same dyno all the time to log changes. The real juice is in the ET's on track eh