MG Sports Cars

engine swaps and other performance upgrades, plus "factory" and Costello V8s

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perrymgbv8
Perry Stephenson

(188 posts)

Registered:
12/06/2007 02:50PM

Main British Car:
Another new PB.... But this time its my first 9 second pass :)
Posted by: perrymgbv8
Date: June 30, 2013 02:25PM

I took the car out yesterday with the same tune as the last PB. But this time I had fixed a wiring issue that was causing erratic operation of the nitrous. We set the controller for a soft launch and used more rpm that this engine seems to like now? I was very happy with a 9 and even happier to back it up on the next pass.
Nuff said!

Here are the two runs I did yesterday

[www.youtube.com]

[www.youtube.com]


BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: BlownMGB-V8
Date: June 30, 2013 02:55PM

Good stuff Perry!

Jim


rficalora
Rob Ficalora
Willis, TX
(2764 posts)

Registered:
10/24/2007 02:46PM

Main British Car:
'76 MGB w/CB front, Sebring rear, early metal dash Ford 302

authors avatar
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: rficalora
Date: June 30, 2013 11:18PM

WOW! Congratulations Perry. Great accomplishment.
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perrymgbv8
Perry Stephenson

(188 posts)

Registered:
12/06/2007 02:50PM

Main British Car:
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: perrymgbv8
Date: July 02, 2013 11:43AM

Thanks Guys!!

They were nice smooth runs as well. My rear suspension mods have worked ??

Nothing fancy though, just taller bump stops on the rear axle !

I'm out again this weekend to see if a 9.89 is possible?


perrymgbv8
Perry Stephenson

(188 posts)

Registered:
12/06/2007 02:50PM

Main British Car:
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: perrymgbv8
Date: July 02, 2013 04:47PM

I have just been thinking about next weekend?
I'm going to add another 50hp of nitrous and drop my launch power down some more.

I have been running 1.4 second 60 foot times to get my old 10.2 second runs. But on the new engine I have only made 1.6 seconds in the 60 foot as the engine revs much better now. So next Sunday I will jet up for a 200 shot of nitrous. I will set my launch power to 50hp with the other 150hp coming in over 2 seconds. I will take another 2-3 degree's of timing out to see if she will still launch nice and straight while still giving me another 10th off my current ET.

I do think that she may just do what I'm asking of her ?


Jim Stabe
Jim Stabe
San Diego, Ca
(829 posts)

Registered:
02/28/2009 10:01AM

Main British Car:
1966 MGB Roadster 350 LT1 Chevy

authors avatar
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: Jim Stabe
Date: July 02, 2013 05:57PM

I knew you were going to get to single didits. Well done.


perrymgbv8
Perry Stephenson

(188 posts)

Registered:
12/06/2007 02:50PM

Main British Car:
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: perrymgbv8
Date: July 05, 2013 04:10PM

Thanks Jim!

I'm loaded on the trailer for 2 days of fun at the track this weekend. I'm going to let my Son run the MG tomorrow as I'll be tinkering with the other car I've been helping build this last few years. An old skool slingshot with a meth powered SBC and glide setup.

Once my friend has made a couple of passes I'll be jumping in to give it a try :)

Then on Sunday I'll be in the MG trying for that 9.89 ticket !!

Weather here is nice and warm at 78F today and the forecast at the track for the weekend is around 84 F.



perrymgbv8
Perry Stephenson

(188 posts)

Registered:
12/06/2007 02:50PM

Main British Car:
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: perrymgbv8
Date: July 09, 2013 10:22AM

Holy Moly!!!!

I was hoping to come home with a 9.89 timing ticket. But I came home with a big smile on my face and a 9.81 timing ticket :)

I'm very happy with the new engine now :)

[www.youtube.com]


74ls1tr6
Calvin Grannis
Elk Grove,CA
(1151 posts)

Registered:
11/10/2007 10:05AM

Main British Car:
74 TR6 / 71 MGB GT TR6/Ls1 71 MGB GT/Ls1

authors avatar
Re: Another new PB.... But this time its my first 9 second pass :)
Posted by: 74ls1tr6
Date: July 09, 2013 04:09PM

Nice run Perry! Congrats on new PB 9.81 sweet!


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