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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Sat Apr 07, 2012 2:35 pm Post subject: OK... TC replacement time for racing only. |
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In my 85 383, I understand (based on the paper work) that the heads were done very well on the carbed 383.
I topped out at 109 at PIR last year, and that's with a stock converter that did not like that at all.... and a stock cam.
I'm keeping this car race only. Right now, it's got a 4.10 open rear end and a turbo 350.
So, it's time for another converter. It's also time for a cam.
How high do I go for the stall? I was thinking in terms of 3500 or so. This is for racing only.
Suggestions? _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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Dewey316 The Lama
Joined: 08 Jan 2004 Posts: 7295 Location: Bringing the tech
1990 Chevrolet Camaro RS
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Posted: Sat Apr 07, 2012 6:30 pm Post subject: |
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I would talk to whoever you get the cam from, they should be able to recomend a stall speed that matches the cams power range. |
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DBL_TKE Member
Joined: 28 Feb 2007 Posts: 1505 Location: Aloha, OR
1991 Chevrolet Camaro Z/28
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Posted: Sat Apr 07, 2012 7:14 pm Post subject: |
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I would give a call to A-1 transmission in Vancouver. They do a pretty good job at spec'ing a converter and they custom make them as well. However, I'd advise you to get a locker/posi/spool before a different cam. The better you can hook up, the better your ET's will be. _________________ Richmond 3.73 posi| 36/24 sway bars | SLP LM2 | Koni's | Ground Control 800/200 | Y2K wheels | Dyno Don headers & Y-pipe | airfoil | BBK underdrive pulleys | Raised strut mounts | Extended ball joints | LCARB'S
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QwkTrip 11sec Club
Joined: 17 Feb 2004 Posts: 3942 Location: Peoria, IL
1989 Pontiac Firebird
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Posted: Sat Apr 07, 2012 7:56 pm Post subject: |
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That's a whopper of a trap speed for stock cam and converter. |
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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Sun Apr 08, 2012 3:50 pm Post subject: |
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QwkTrip wrote: | That's a whopper of a trap speed for stock cam and converter. |
It is. This was the 3rd or 4th time I'd gone down the strip. The video speaks for itself, though; wife is doing the voice-over.
http://www.youtube.com/watch?v=9KfSrVo1jMM
The converter is leaking like a sieve and I've just about got it out.
I bought the car from a former Crewbie, who gave me the low-down:
Stock coverter and stock cam.
Any suggestions for a race-only cam set up? _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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aaron_sK Member
Joined: 23 Jan 2006 Posts: 8834 Location: Back in beautiful Tacompton
1987 Chevrolet Camaro IROC-Z
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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Sun Apr 08, 2012 6:04 pm Post subject: |
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It is!
And now, my wife is the one doggin' me to get this thing back up and running. _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Mon Apr 09, 2012 11:03 am Post subject: |
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Stock cam 383? WTF does that mean.
http://www.ctconverters.com/index.html
I prefer Continental converters. Or buck up and buy a Vigilante. _________________ A redline a day keeps the carbon away! |
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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Mon Apr 09, 2012 5:15 pm Post subject: |
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Twilightoptics wrote: | Stock cam 383? WTF does that mean. |
Far as I know, it means that it's the same roller cam that came with the 350.
Thus, stock camshaft.
Thanks for the tip on the TC's. _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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RK82 Member
Joined: 27 Jul 2008 Posts: 168 Location: vancouver B.C
1982 Pontiac Trans Am
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Posted: Mon Apr 09, 2012 8:03 pm Post subject: |
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Twilightoptics wrote: | Stock cam 383? WTF does that mean. |
that's what I was thinking, who puts a stock cam in a 383 |
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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Mon Apr 09, 2012 9:35 pm Post subject: |
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RK82 wrote: | Twilightoptics wrote: | Stock cam 383? WTF does that mean. |
that's what I was thinking, who puts a stock cam in a 383 |
Uhhh.... the guy I bought it from? _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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izcain 9sec Club
Joined: 09 Sep 2006 Posts: 1306 Location: Port Angeles WA
1983 Chevrolet Camaro Z/28
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Posted: Tue Apr 10, 2012 8:27 pm Post subject: |
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Never spec a tc without knowing the combo on the engine. If you plan on changing the cam change that and get the engine buttoned up then spec that TC _________________
1983 Z28 383 + 201ci more = New Heart for this season!
9.17 @ 148 |
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Twilightoptics Hardcore (12sec Club)
Joined: 13 Jan 2004 Posts: 9191 Location: Auburn , WA
1987 Chevrolet Camaro IROC-Z
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Posted: Tue Apr 10, 2012 9:29 pm Post subject: |
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izcain wrote: | Never spec a tc without knowing the combo on the engine. If you plan on changing the cam change that and get the engine buttoned up then spec that TC |
_________________ A redline a day keeps the carbon away! |
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Kage87Z Member
Joined: 19 Jan 2004 Posts: 436 Location: 12 Second Club
1969 Chevrolet Camaro
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Posted: Wed Apr 11, 2012 11:06 pm Post subject: |
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OK... going with a GM30 TC... and XE274 cam, beehive springs and new retainers...
The engine aspect is kinda like this guys:
Also looking at this:
Brand Lunati
Manufacturer's Part Number 50156
Part Type Camshafts
Product Line Lunati Hydraulic Roller Tappet Camshafts
Summit Racing Part Number LUN-50156
UPC 090127459133
Cam Style Hydraulic roller tappet
Basic Operating RPM Range 2,000-6,500
Intake Duration at 050 inch Lift 232
Exhaust Duration at 050 inch Lift 242
Duration at 050 inch Lift 232 int./242 exh.
Advertised Intake Duration 290
Advertised Exhaust Duration 300
Advertised Duration 290 int./300 exh.
Intake Valve Lift with Factory Rocker Arm Ratio 0.510 in.
Exhaust Valve Lift with Factory Rocker Arm Ratio 0.525 in.
Valve Lift with Factory Rocker Arm Ratio 0.510 int./0.525 exh.
Lobe Separation (degrees) 110
Computer-Controlled Compatible Yes
Grind Number RRA1-232-242
Valve Springs Required Yes
Quantity Sold individually.
s: _________________ "Are you guys ready? Let's roll."
Todd Beamer - 9/11
Never Forget
My 69's story: http://myspace.com/69camaro454
My 87 Z/28's tale of woah... http://myspace.com/87Zcamaro383 |
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redlava Member
Joined: 02 Feb 2007 Posts: 448 Location: Bremerton
1986 Chevrolet Camaro Z/28
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Posted: Thu Apr 12, 2012 1:15 pm Post subject: |
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I bought a street edge converter 2800rpm, I have driven the car a few times since I have had it installed. It definatly wakes the car up. I havent really had the car out to much since it was installed so I can not comment on its durablity. Based on the reviews, I saw it should hold up well, it ran about $550. Definatly had a seat of your pants improvement and im running a smaller cam than you plan to. |
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