8k rpm ...

[12swinger]

Post up your tire size and gear ratio. Then we will know how accurate your tach is. I say it's junk.

Please
My buddy Mark H campaigned a stock bodied Duster with a destroked 340, that I’ll admit wasn’t all that quick, would routinely have the mechanical telltale tach stuck on 11,500-12,000 rpm. He claimed 13,000 but I saw the tach after a pass many times.

 

[fishmens67]

I’ve buried a 9,000 rpm tach more times then I can count for over a decade in a 340
Dual purpose street strip car. Nothing exotic or expensive.
Only issues were an occasional broken valve spring, which meant I carried a spare, and got pretty good at changing at the strip.
Ported J heads with the .557 sold cam and a 160 pounds of valve seat pressure.
4.56 gears, and 4500 stall 3200 lb Dart in my profile

I don't believe you, but it really doesn't matter if I do. lol but I have to wonder what was the oil pressure at 9000rpm

 

[12swinger]

I don't believe you, but it really doesn't matter if I do. lol but I have to wonder what was the oil pressure at 9000rpm

I don’t lie.
Hamburger oil pan, that held 8 quarts. Hv Melling pump, Ed told me to Swiss cheese the windage tray.
It ran a decade with only a few times coming out to inspect and file fit new rings, and fresh bearings. Same rods, and crank, forged junk speed pro pistons.
Always had 63-70 pounds of oil pressure above a couple thousand rpm. fully grooved bearings with .003 clearance.
Do I recommend spinning a 340 that high?No. But don’t act like it’s not achievable, cause that’s not true.
When using the nitrous I shifted around 6,500 cause when it my brain to hand time was around 7,500
But on the motor I spun it a little harder, as it always ran better, closer to 8,000
This engine is a little bigger and will be shifted at 7,800

 

[12swinger]

This one

 

[yellow rose]

View attachment 1715429497 This one

Half the battle is the pan and that pickup.

But you'd be one of the few that turn them that high and got away with it.

 

[yellow rose]

Half the battle is the pan and that pickup.

But you'd be one of the few that turn them that high and got away with it.

BTW I have a swinging pickup for that pan if you are interested. You can't buy that stuff any more.

 

[yellow rose]

Please
My buddy Mark H campaigned a stock bodied Duster with a destroked 340, that I’ll admit wasn’t all that quick, would routinely have the mechanical telltale tach stuck on 11,500-12,000 rpm. He claimed 13,000 but I saw the tach after a pass many times.

Those tachs were notorious for two things. Inherent inaccuracy and cable whip.

The longer the cable, and the more bends in it, the less accurate it was and the more the cable would whip the needle.

Had a buddy running a mag with a tach like that. I think it was a Moroso but I'm not 100% sure on my recollection on that.

He ran a magneto so he didn't want to swap tachs. And he said he always shifted at 8800 and the tell tale would show that. The issue was nothing added up. His MPH, gear ratio, tire size...it was all wonky numbers.

He finally bought a new Auto Meter tach for a mag that had an inductive pick up and had it checked to make sure it was accurate.

Next thing you know...he is actually shifting at about 7800 and crossing on a good day at 8000.

Which, not coincidentally matched his gear ratio, RPM and MPH.

Many tachs are junk.

 

[12swinger]

BTW I have a swinging pickup for that pan if you are interested. You can't buy that stuff any more.

I have the Milodon pan that the center link runs through it, for a 340 and a 360.
I was never blessed to have the swinging pickup though.
I went to these pans, as the Hamburger pan was center sump.

 

[12swinger]

Those tachs were notorious for two things. Inherent inaccuracy and cable whip.

The longer the cable, and the more bends in it, the less accurate it was and the more the cable would whip the needle.

Had a buddy running a mag with a tach like that. I think it was a Moroso but I'm not 100% sure on my recollection on that.

He ran a magneto so he didn't want to swap tachs. And he said he always shifted at 8800 and the tell tale would show that. The issue was nothing added up. His MPH, gear ratio, tire size...it was all wonky numbers.

He finally bought a new Auto Meter tach for a mag that had an inductive pick up and had it checked to make sure it was accurate.

Next thing you know...he is actually shifting at about 7800 and crossing on a good day at 8000.

Which, not coincidentally matched his gear ratio, RPM and MPH.

Many tachs are junk.

You should have heard it though.
He had a couple come apart pretty dramatically.
He went Hemi and then big block with Zeeker heads a couple years later.
Set a 60 foot at Memphis msp that held for years 1.02

 

[12swinger]

Half the battle is the pan and that pickup.

But you'd be one of the few that turn them that high and got away with it.

I probably don’t make enough power to break it.

 

[yellow rose]

You should have heard it though.
He had a couple come apart pretty dramatically.
He went Hemi and then big block with Zeeker heads a couple years later.
Set a 60 foot at Memphis msp that held for years 1.02

Zeeker. Haven't heard that name in awhile. Before I converted my car to a 4 link from the ladder bars that were in it when I bought it, I called every single chassis shop in the country who would talk to me. Every single one of them said to leave the ladder bar in it. This was a stick car and 7000 on launch was about as low as I let it get. I knew the ladder bars were hurting it.

I almost gave up but I called Zeeker. Guy answers the phone and I tell him what I have and he says why the ladder bar? That makes no sense. It's bad enough at the launch but it will be equally as bad I the gear changes. Get rid of those and use a 4 link. Only guy in the country to tell me what I already knew. I only live about 2.5 hours south of Art Morrison. I had spent an entire Saturday up there talking with them. Went there to buy a 4 link, but they talked my dad and my buddy out of it. The sorry assed dude also spent his time trying to convince me to out a power glide in the car. I said I'd cut my balls off with a rusty butter knife long before that happened. What a pussy that guy was. I forget his name or I'd drop it here just to piss off the spectators.

Anyway, the guy on the phone was none other that Dave Morgan, the guy who wrote the Doorslammers chassis book. The only guy in the country who agreed with the 4 link (how is that for a mane drop??).

Eventually I went to Seattle and met him and went through his chassis class. Super nice guy and he wasn't afraid to tell a guy when he was off his rocker or his stuff was junk.

Well that's my Zeeker story and I'm sticking to it.

 

[RustyRatRod]

And really unnecessary except for the "cool factor" which is the only reason I see here.

What's cool about it? Breaking parts prematurely?

 

[rumblefish360]

Naaaaaa, just bragging rights..//

 

[12swinger]

Zeeker. Haven't heard that name in awhile. Before I converted my car to a 4 link from the ladder bars that were in it when I bought it, I called every single chassis shop in the country who would talk to me. Every single one of them said to leave the ladder bar in it. This was a stick car and 7000 on launch was about as low as I let it get. I knew the ladder bars were hurting it.

I almost gave up but I called Zeeker. Guy answers the phone and I tell him what I have and he says why the ladder bar? That makes no sense. It's bad enough at the launch but it will be equally as bad I the gear changes. Get rid of those and use a 4 link. Only guy in the country to tell me what I already knew. I only live about 2.5 hours south of Art Morrison. I had spent an entire Saturday up there talking with them. Went there to buy a 4 link, but they talked my dad and my buddy out of it. The sorry assed dude also spent his time trying to convince me to out a power glide in the car. I said I'd cut my balls off with a rusty butter knife long before that happened. What a pussy that guy was. I forget his name or I'd drop it here just to piss off the spectators.

Anyway, the guy on the phone was none other that Dave Morgan, the guy who wrote the Doorslammers chassis book. The only guy in the country who agreed with the 4 link (how is that for a mane drop??).

Eventually I went to Seattle and met him and went through his chassis class. Super nice guy and he wasn't afraid to tell a guy when he was off his rocker or his stuff was junk.

Well that's my Zeeker story and I'm sticking to it.

Loren Zeedyk was Marks mentor.
I knew Loren, but his health was going down when I met him.
His knowledge of chassis and brakes, to intakes and heads was enormous.
I have several Zeeker stories myself, as he visited Hogan race engines numerous times while I was there. I was called 12

 

[thesiren74]

Put an x-pipe on and change the 7 to an 8 on the tack Bam!! Done lol

 

[pittsburghracer]

11.70s In the quarter 7.40s in the eighth on the motor.
6.80s-6.90 with a 150 shot. thousands of passes with nitrous which I only used on 1/8 mile tracks spinning hard.

If I had to shift my stuff at 9000 rpm to run 11.70’s I would buy a camera and put and LS engine in it. Sorry but there is not excuse for doing that.

 

[IQ52]

Stock 273 block 8 sleeves and 3.75 bore for 292 cubic inches
Stock crank
5.4 H-beam Ford rods with EDM pin oiling
Diamond custom pistons with crappy 1/16 ring package
Wet sump oil pan and HV pump with oil crossover
Iron magnum style engine quest heads w/roller rockers, jomar girdles and pushrod oiling
Comp solid roller cam and lifters
Lots better parts today to make way more power

View attachment 1715429420 View attachment 1715429421

This is all too familiar. There is a picture of a 292ci 273 engine with 8 sleeves taken in 2010. It has Indy/RHS-X heads, Jomar girdle, stock crank, Ford rods, roller rockers, push rod oiling, Comp solid roller cam and lifters, wet sump oil pan, HV pump, oil crossover (hidden by the paper towels). I had to drive from Morton, IL to Melling to pick up the sleeves and bring them back to be installed. It had to be re-sleeved because the first set of sleeves were offset and the valves hit the cylinder walls.

The cylinder head had to be repaired because the #7 exhaust port cracked and was leaking water during the dyno runs. I had three of these heads that had the #2 or #7 exhaust port with very thin casting in spots.

See post 109 in this thread.....I believe this may be 273 engine from those dyno sheets.

Is 426ci 360 a small block?

 

[IQ52]

If I had to shift my stuff at 9000 rpm to run 11.70’s I would buy a camera and put and LS engine in it. Sorry but there is not excuse for doing that.

Happily, just wanting to do it may be a good enough excuse. I remember Dad racing his 273 4-spd '65 Dart and saying, "Dammit Jimmy, I missed a shift out there and the tach said 9,300 rpm and it was on it's way DOWN!"

 

[Hemirunner]

This is all too familiar. There is a picture of a 292ci 273 engine with 8 sleeves taken in 2010. It has Indy/RHS-X heads, Jomar girdle, stock crank, Ford rods, roller rockers, push rod oiling, Comp solid roller cam and lifters, wet sump oil pan, HV pump, oil crossover (hidden by the paper towels). I had to drive from Morton, IL to Melling to pick up the sleeves and bring them back to be installed. It had to be re-sleeved because the first set of sleeves were offset and the valves hit the cylinder walls.

The cylinder head had to be repaired because the #7 exhaust port cracked and was leaking water during the dyno runs. I had three of these heads that had the #2 or #7 exhaust port with very thin casting in spots.

See post 109 in this thread.....I believe this may be 273 engine from those dyno sheets.

Is 426ci 360 a small block?

That’s it. I always wondered what became of those heads!

 

[IQ52]

That’s it. I always wondered what became of those heads!

Well see, with a little touch up they did make 629 HP on a pump gas 424 stroker!

 

[Hemirunner]

Well see, with a little touch up they did make 629 HP on a pump gas 424 stroker!

Similar power per cube. That valvetrain was interesting to say the least.

 

[IQ52]

Similar power per cube. That valvetrain was interesting to say the least.
View attachment 1715429766

It takes a rebel to take a shaft rocker mount cylinder head and turn it into a stud rocker mount cylinder head.

You know, if we had run that engine with the head leaking water, it still would have won the dyno contest. Just fire it up and make the three qualifying pulls without shutting it off and then made the three scored pulls without shutting it off, and we had a winner.

 

[Hemirunner]

It takes a rebel to take a shaft rocker mount cylinder head and turn it into a stud rocker mount cylinder head.

You know, if we had run that engine with the head leaking water, it still would have won the dyno contest. Just fire it up and make the three qualifying pulls without shutting it off and then made the three scored pulls without shutting it off, and we had a winner.

Agreed on both statements! Hindsight is 20/20!

 

[12swinger]

If I had to shift my stuff at 9000 rpm to run 11.70’s I would buy a camera and put and LS engine in it. Sorry but there is not excuse for doing that.

I didn’t intentionally buzz it to 9,000 rpm
I drank back then and drove it on country back roads. Also at George Rays dragstrip I occasionally celebrated.
When you’re in your twenties, you’re invincible.
Ls engine lol

 

[oldkimmer]

Don't have a number in mind honestly, just want it to hold together !
This all stems from a guy near me with a 327/4spd 55 Chevy. He drives the **** out of his car, shifts at 8k everytime he drives it. Sounds amazing!

Did u ever stop to think that his tach is wacko? Lots more than u think are wacko. Kim