Author Topic: First time at strip with my 750, didn't turn out so good  (Read 5341 times)

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Offline Bailgang

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First time at strip with my 750, didn't turn out so good
« on: August 16, 2015, 04:49:33 AM »
Just giving you forewarning that this is kind of long so if you have no interest in wading through my horrible grammar then don't bother reading much further than this. Yesterday was put up or shut up day and the 2 mouth runners in question were an older brother of mine and his mid 2000 sumtin Mustang GT and my youngest son with his WRX at US-41 Motorplex in Morocco Indiana and I brought my 77 F2 to play around as well. To add to the fun even more another older brother of mine and a nephew showed up with his front engined SBC powered 67 Corvair, it was more or less a Bail family track day and we had fun but boy oh boy did the drag strip kick everyone's ass. Even though I've had my 750 for a few years now and have ridden it aggressively from time to time yesterday was the very first time I attempted to launch the bike hard from a standing stop and I have to apologize to you guys right now because I did a horrible job representing our Hondas, I had nothing but blown shifts one run after another and the engine took an absolute ass whoopin from all the over revving. The blown shift going into 2nd gear on my second run was so bad it almost ended my day right there because the engine spun so high and floated the valves so bad it had 3 rocker arm adjusting nuts back off 2 of which actually fell off and were setting in the head, fortunately I had installed a frame kit by our very own 754 so I was able to pull the valve cover off and luckily for me those 2 nuts were still setting in the cyl head because I wasn't going to fire it up again until I found them all ....... I really couldn't have anyhow without finding them all because I didn't have any extra ones. I did get one run in where the engine bogged off the line and then blew a shift into 3rd but still pulled off a mid 15 ET so I figured if I could get a decent launch and not blow a shift then maybe the bike was capable of a decent ET.

The shifting issues turned out to be the shoes I was wearing and how I had the shifter positioned, I wore laced boots that went above my ankles but this was the first time I actually ever road the bike while wearing those shoes and being the toes of the shoes were a bit beefier I assumed that moving the shifter up one notch would give me the same feel but after at least a half dozen blown shift runs I decided to drop the shifter back to where I normally have it and viola, I finally got a clean run although I had a horrible launch again so now it was time to work on my launch but right as I was getting staged for another run that's when a big storm rolled in and the officials shut the track down till it passed. We had been there since since 10 AM when the track opened and it was now 4 in the afternoon, it was going to take at least another hour till they dried the track and got it prepped again and being all of us was tired we all decided to pack things up and call it a day. With that said my one and only clean pass was a 14.8 at 86 mph. I felt the bike itself ran well, it was the horrible riding of its rider (me) that failed.  :'(

The person who went home with the bragging rights in the Mustang/WRX shootout was my brother and his Mustang which pulled off a 12.991 compared to the WRX with its best ET of 13.08. The Mustang was all motor meaning no help from nitrous or anything else, my brother has been striving to get it into the 12's on engine alone for a number of years now so he was very pleased, he just barely did it but pleased none the less. My nephew and the Corvairs day ended abruptly on its very first pass, he was running 10 inch slicks with a 100 hp shot of nitrous, the car has a Corvette independent rear that ties into the original Corvair trailing arms and the shock of the nitrous and sticky slicks snapped one of the half shafts at its u-joint yoke the moment he launched, the problem there is that he drove the car there so we had no trailer to get the car back home. The track official at the starting line handed my nephew a handful of lug nuts pointing to another car nearby setting on jack stands saying "don't feel bad, these lug nuts are from the car that went before you"  :o
Scott


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77 cb750 F2
83 gl1100 Interstate

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #1 on: August 16, 2015, 04:56:30 AM »
Oh and I almost forgot, around 10 last night I got a call from my brother saying how he was stranded in Mattoon Illinois waiting on a wrecker to get his Mustang back home. I guess on his way home from the track he went to pass a truck and as he was shifting back into 5th gear the shifter broke inside the trans and he had nothing. The drag strip definitely kicked our asses yesterday.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate

Offline Bill/BentON Racing

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Re: First time at strip with my 750, didn't turn out so good
« Reply #2 on: August 16, 2015, 05:02:10 AM »
Good read, ain't it fun, a little harder on this side of the fence! Gluck, Bill
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Offline chewbacca5000

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Re: First time at strip with my 750, didn't turn out so good
« Reply #3 on: August 16, 2015, 06:43:31 AM »
Sounds like alot of fun!  Can't wait to see the rematch between your son and brother.  Your son had to be steamed that the linkage gave way on the WRX.  Guess he'll have to beef it up a bit.  Is your brothers mustang going to be ok?

As for the 750 mis shifts are no fun glad to hear you were able to fish those adjuster nuts out and get one decent run.  I don't think I would do any better as I have not mastered the launch myself.

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #4 on: August 16, 2015, 08:14:32 AM »
Sounds like alot of fun!  Can't wait to see the rematch between your son and brother.  Your son had to be steamed that the linkage gave way on the WRX.  Guess he'll have to beef it up a bit.  Is your brothers mustang going to be ok?

As for the 750 mis shifts are no fun glad to hear you were able to fish those adjuster nuts out and get one decent run.  I don't think I would do any better as I have not mastered the launch myself.

The WRX actually ran well with no breakage, it was the rest of us that broke something or was sidelined. What was odd about the WRX is that my kid had ran a 13.4 at the same track a year ago with it's original clutch which slipped really bad at launch, he just barely had enough clutch to make it back home that day. Yesterday though he was using a supposedly upgrade hi-po clutch yet it slipped as well and he was .4 slower than last year. Go figure. No word yet on a damage report from the Mustangs trans or how soon my nephew can get another half shaft ready for the Corvair to get it home either ..... its still at the track. My kid did "man up" on facebook today saying how he got beat by his Uncle however he made the point that his car actually made it home under its own power. My brother is just going to love him for that comment.
Scott


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77 cb750 F2
83 gl1100 Interstate

Offline jeffg

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Re: First time at strip with my 750, didn't turn out so good
« Reply #5 on: August 16, 2015, 08:30:38 AM »
nice family Bail day thanks for the read

Offline NalleyRacing

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Re: First time at strip with my 750, didn't turn out so good
« Reply #6 on: August 16, 2015, 08:39:01 AM »
Great read. Gotta start somewhere!  ;D

Like Bill said, it looks REAL easy on the other side of the fence  ;)

Keep at it!

Offline seanbarney41

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Re: First time at strip with my 750, didn't turn out so good
« Reply #7 on: August 16, 2015, 08:51:08 AM »
lol...the family that races together stays together







even if their machines don't!
If it works good, it looks good...

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #8 on: August 16, 2015, 10:00:15 AM »
Wait a sec, I just realized I had my kids WRX times all wrong. He was quicker this time around compared to last year with the new clutch but he did claim it was still slipping a bit. No excuses allowed though. ;D
Scott


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77 cb750 F2
83 gl1100 Interstate

Offline dragracer

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Re: First time at strip with my 750, didn't turn out so good
« Reply #9 on: August 16, 2015, 12:55:23 PM »
Thanks for giving us that report. No shame when you're having fun. Hope to hear about the next adventure soon.

Offline Ravie

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Re: First time at strip with my 750, didn't turn out so good
« Reply #10 on: August 16, 2015, 07:34:36 PM »
I want to see the Corvair!



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Offline Stev-o

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Re: First time at strip with my 750, didn't turn out so good
« Reply #11 on: August 16, 2015, 08:39:45 PM »
Hey Bail....I'm guessing you didn't power shift?
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Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #12 on: August 17, 2015, 02:01:45 AM »
Hey Bail....I'm guessing you didn't power shift?

Nope no power shifts but they weren't lazy shifts either, most of my time was wasted on the launch plus I'm not exactly sure the engine was running as strong as I'm used to so I'm going to have to check it out this week as well. I got the word last night that my nephew finally got the Corvair home, he's going to have to come up with some sort of serious upgrade to the half shafts if he intends on launching with the nitrous all the time. He usually waits till after the moment the car launches then hits the nitrous, this time though the officials at the starting line were taking great interest in the car I mean how often have they seen a V8 Corvair so my nephew decided to impress them (WRONG) and did a bigger burnout than usual to get the slicks nice and sticky and launch with the nitrous the moment the tree turned green. I've uploaded the vid of his attempted launch from my camera to computer, that half shaft snapped so quick the car hardly moved.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate

Offline Bill/BentON Racing

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Re: First time at strip with my 750, didn't turn out so good
« Reply #13 on: August 17, 2015, 04:57:15 AM »
I had a V8 Vair ,awesome cars!! ;D, Bill
BentON Racing Website
OEM Parts | Service | Custom Builds
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Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
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See our latest build 'Captain Marvel' CLICK HERE

Offline Stev-o

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Re: First time at strip with my 750, didn't turn out so good
« Reply #14 on: August 17, 2015, 05:40:34 AM »
Hey Bail....I'm guessing you didn't power shift?

Nope no power shifts...

You would be far less likely to miss while properly power shifting.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #15 on: August 17, 2015, 02:21:39 PM »
Hey Bail....I'm guessing you didn't power shift?

Nope no power shifts...

You would be far less likely to miss while properly power shifting.

Define power shifting. Backing off the throttle a bit and shifting without clutch or keeping throttle wide open while using clutch when shifting? I'm not being a smart a.. I genuinely want to know. Any tips regarding my riding technique is welcomed.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate

Offline scottly

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Re: First time at strip with my 750, didn't turn out so good
« Reply #16 on: August 17, 2015, 02:32:07 PM »
Was the half shaft a Corvair shaft or Corvette shaft?
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Offline Stev-o

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Re: First time at strip with my 750, didn't turn out so good
« Reply #17 on: August 17, 2015, 02:54:57 PM »
Hey Bail....I'm guessing you didn't power shift?

Nope no power shifts...

You would be far less likely to miss while properly power shifting.

Define power shifting. Backing off the throttle a bit and shifting without clutch or keeping throttle wide open while using clutch when shifting? I'm not being a smart a.. I genuinely want to know. Any tips regarding my riding technique is welcomed.

Power shifting:   While holding upward pressure on shift lever, depress clutch lever rapidly and maintain wide open throttle.
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #18 on: August 17, 2015, 03:02:53 PM »
Was the half shaft a Corvair shaft or Corvette shaft?

That I'm not entirely sure, the car was already set up with the vette rear end when my brother bought it and my nephew knows much more about it than I do. My nephew has been the one who's been investing all the money and time into it for the past 5 years so my brother pretty much just gave the car to him. He also has a 66 Corvair with a Crown conversion where the SBC is setting where the back seat used to be and tied into the Corvair transaxle, unfortunately the mid engined one still needs a LOT of work before it's road worthy again and being all the money and time has been spent on the front engined one my nephew simply doesn't have the finances or time to finish the mid engined one at the same time.

I'm working on pics but the ones I have are older ones of the Corvair and my nephew has done quite a few changes since then so I'm going to see if he can send me current pics. I was too busy at the dragstrip wrenching on the 750 to pay much attention to it. I do have a vid of my run but almost too embarrassed to post it but constructive criticism has to start some where and I'm open to advice. I'll post it soon.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #19 on: August 17, 2015, 03:17:23 PM »
OK here's the pass, as you will see I need all the help I can get.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #20 on: August 17, 2015, 03:38:20 PM »
Here's the failed launch of the Corvair.
Scott


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77 cb750 F2
83 gl1100 Interstate

Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #21 on: August 17, 2015, 03:53:30 PM »
And here's the Stang/WRX shootout.
Scott


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77 cb750 F2
83 gl1100 Interstate

Offline xtravbx

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Re: First time at strip with my 750, didn't turn out so good
« Reply #22 on: August 17, 2015, 05:40:23 PM »
What times did the wrx / mustang get?


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Offline scottly

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Re: First time at strip with my 750, didn't turn out so good
« Reply #23 on: August 17, 2015, 06:50:44 PM »
The reason I asked about the half shafts was the 'vair units were more robust than the early 'vette shafts, if I recall correctly. I had just been looking at the Crown literature that came with my Corv-8 kit last week, and they claimed that the prototype with a 327/350 HP, cast iron exhaust, 3000 pound weight ran 12.22 seconds. (Maybe he was running racing fuel? ???  ;))
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Offline Bailgang

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Re: First time at strip with my 750, didn't turn out so good
« Reply #24 on: August 18, 2015, 01:52:00 AM »
What times did the wrx / mustang get?


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Best time for the Mustang was a 12.99 and a 13.08 for the WRX but I don't think it was on that run in the vid. My brother did the 12.99 on a solo run and came back to the pits and popped open the hood to help cool things off. My kid asked him how it ran and my brother nonchalantly said "eh, it was OK I guess" and handed my kid his time slip, my kid read it and said "You ran a 12.99?!!" and my brother burst out laughing. The track had what was called "grudge racing" that day so no times were posted on the displays at the end of the track which really kind of sucked because there was some bad ass cars there that we were curious of how well they ran but couldn't tell without the display. Each driver/rider was still given a time slip at the end though.
Scott


71 cb350 twin
77 cb750 F2
83 gl1100 Interstate