Which Is Faster

General engine tech -- Drag Racing to Circle Track

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Warp Speed
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Re: Which Is Faster

Post by Warp Speed » Mon Sep 25, 2017 8:10 am

Geoff2 wrote:I said on page 1 the 6200 rpm engine would be faster. Look forward to what DV has to say.
Congratulations, does that instantly make you correct in your assumptions?

CGT
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Re: Which Is Faster

Post by CGT » Mon Sep 25, 2017 8:50 am

vortecpro wrote:
David Vizard wrote:
vortecpro wrote:I'am going to ask the same question I asked on the Chevelle forum.


"Which engine is faster down a dragstrip and why"




A 427 that makes 600 HP @ 6200 RPM
A 427 that makes 600 HP @ 7100 RPM

?
Absolutely and without doubt the 427 making 600 hp at 6200.

I will explain when I return from down under next week.

DV
David

Can you use those red letters in your post when you explain, I really like those. Be safe.
You don't like the yellow or blue? lol

vortecpro
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Re: Which Is Faster

Post by vortecpro » Mon Sep 25, 2017 9:33 am

I like the red letters he use's when addressing my posts, infact its a topic of conversation around my shop and at lunch. But I was waiting and hoping David would get in here! Pretty sure Warp has something to say as well...............
NHRA Stocker Cranks
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http://www.Vortecpro454.com

Krooser
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Re: Which Is Faster

Post by Krooser » Mon Sep 25, 2017 11:27 am

Just wondering which engine would be faster in a dirt oval application?

I've never spun any of my engines over 6800 or so... I guess I really old school from way back when we didn't have the components that would hold up to that strain. Now my buddies spin 'em 7800 with SBC stock blocks or Dart block SHP with import cranks and rods... that just scares the hell outta me.

My 2018 deal will be a small block Mopar with a good Mopar forged crank, stock 340 bushed rods, 500 gram Ross pistons (or equivelant), solid flat tappet cam, W2 heads with Crower springs, Ti retainers and 3/8" valves... not today's lightest deal but good quality stuff.

My heads should flow close to 300 on the intake... the engine dyno'd at 575HP when new using an old Mopar purple shaft cam (don't know whch one).

This engine was originally built in '93 (for a WISSOTA A-mod), sat for many years under a guys work bench after his home track switched from dirt to pavement in '95. He loaned it out in '07 to a 'friend' who broke the cam the first night out. It went back to the original engine shop (good reputation) got a $3K freshen and then proceeded to blow it up after, what I think, was using too heavy of any oil with some 'goo' added to the oil. Seems he didn't warm up the engine on a cool fall night and spun a bearing but kept his hoof on the throttle until she seized a rod bearing.

Sorry for rambling... and hijacking this thread.
Last place in the B-main is better than anyplace in the grandstands...

Geoff2
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Re: Which Is Faster

Post by Geoff2 » Tue Sep 26, 2017 5:23 am

Warp speed,
Thank you for your warm congratulations...

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Re: Which Is Faster

Post by vortecpro » Tue Oct 10, 2017 11:22 pm

David Vizard wrote:
Sun Sep 24, 2017 8:36 pm
vortecpro wrote:I'am going to ask the same question I asked on the Chevelle forum.


"Which engine is faster down a dragstrip and why"




A 427 that makes 600 HP @ 6200 RPM
A 427 that makes 600 HP @ 7100 RPM

?
Absolutely and without doubt the 427 making 600 hp at 6200.

I will explain when I return from down under next week.

DV
David

Can we get back to this.
NHRA Stocker Cranks
Crankshaft Repair
Counter Weight Cutting

http://www.Vortecpro454.com

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