"Cam Only" recommendations for use with "806" heads.
Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
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From: Kansas City
"Cam Only" recommendations for use with "806" heads. Hello Everyone,
I am wanting some "Cam Only" recommendations for use with "806" 69cc heads.
The car is driven roughly 3,000 - 5,000 miles a year, and is used mostly for Drag Strip/Stop Light Showdowns.
I am NOT at all concerned with being a "Dyno Queen", but rather I just want it to run like a raped ape at the track. With that said, I am NOT interested in cam set ups that give the highest "peak" power, but rather something with a large power band that will net me the LOWEST ET.
Some suggestions already made to me are: MS4/Trex or the "Reverse Split" 230/224 type cams.
Here is what I have to work with.
- 1978 Chevrolet Caprice 2-Door Coupe (named Christine)
- Stock 1998 LS1 from a rear-ended T/A (The tune has been changed to raise rpm redline to 6500 rpm, and emissions deleted.)
- TH350 with 3500-3800 Stall
- 3:73 w/ limited slip
- Headmen Headers to true duals with "H" pipe dumping through Flowmasters at the rear axle (also have dual QTP E-Cutouts that work when they want)
- 28" MT Drag Radials
- Quickest ET so far is a 12.7 @ 104 mph with a 1.7 60'
On a side note: I may also be considering changing from the TH350 to something like a 700R4 or maybe a "Gear Vendors" Overdrove unit depending on suggestions and feedback on here.
Thank you in advance for your time!
I am wanting some "Cam Only" recommendations for use with "806" 69cc heads.
The car is driven roughly 3,000 - 5,000 miles a year, and is used mostly for Drag Strip/Stop Light Showdowns.
I am NOT at all concerned with being a "Dyno Queen", but rather I just want it to run like a raped ape at the track. With that said, I am NOT interested in cam set ups that give the highest "peak" power, but rather something with a large power band that will net me the LOWEST ET.
Some suggestions already made to me are: MS4/Trex or the "Reverse Split" 230/224 type cams.
Here is what I have to work with.
- 1978 Chevrolet Caprice 2-Door Coupe (named Christine)
- Stock 1998 LS1 from a rear-ended T/A (The tune has been changed to raise rpm redline to 6500 rpm, and emissions deleted.)
- TH350 with 3500-3800 Stall
- 3:73 w/ limited slip
- Headmen Headers to true duals with "H" pipe dumping through Flowmasters at the rear axle (also have dual QTP E-Cutouts that work when they want)
- 28" MT Drag Radials
- Quickest ET so far is a 12.7 @ 104 mph with a 1.7 60'
On a side note: I may also be considering changing from the TH350 to something like a 700R4 or maybe a "Gear Vendors" Overdrove unit depending on suggestions and feedback on here.
Thank you in advance for your time!
Last edited by KC Henry; Mar 14, 2010 at 10:41 PM.
Cam Since it's mostly track, street fun, I'd do 228/232 or the rev split you mentioned. Also 224/228 .. Anything bigger you might need a higher stall?
It's going to need tuned afterwards no matter what cam you stuff in it !
It's going to need tuned afterwards no matter what cam you stuff in it !
Launching!
Joined: Jun 2006
Posts: 248
Likes: 3
From: Indianpolis, IN
With an LS6 intake (your LS1 manifold doesnt breath near as well) and a mid size cam I think you'll be able to touch 11s easy. I'd contact Texas Speed or Thunder Racing and let their gurus head you in the right way.
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look into the el torro spec cam (its a reverse split but more aggressive than the 230/224)
if I had it to do over I would have went bigger than the wanna be tr230/224 i run and i basically daily drive my car
if I had it to do over I would have went bigger than the wanna be tr230/224 i run and i basically daily drive my car
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Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
Likes: 0
From: Kansas City
Thank you all for your advice, keep it coming !
Anyone on here have a "ET proven" Cam only (with "806" heads) combo I can look over and study?
Btw, the car is around 3800 with me in it (200lbs) and full fluids.
Anyone on here have a "ET proven" Cam only (with "806" heads) combo I can look over and study?
Btw, the car is around 3800 with me in it (200lbs) and full fluids.
I ran the TR230 with my 806 heads in my 98 Z with all the supporting mods and for a Cam only car, it was pretty nasty! And the TR230 is got a pretty nasty idle to boot. That cam makes great low end torque and from what I was told by Thunder Racing is that it was designed for a "stock headed car" somethin you might wanna look into....
Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
Likes: 0
From: Kansas City
I ran the TR230 with my 806 heads in my 98 Z with all the supporting mods and for a Cam only car, it was pretty nasty! And the TR230 is got a pretty nasty idle to boot. That cam makes great low end torque and from what I was told by Thunder Racing is that it was designed for a "stock headed car" somethin you might wanna look into....
I don't have it sorted out yet, just recently got a stall and now I'm not hooking. Also still running a mail order tune. Went to get a tune but the driveshaft snapped so that ended that for now...trying to get it back together.
Best so far is a 7.92@87mph 1/8th mile spinning hard to a 1.8 60ft
I'm expecting mid-low 7s with traction and a tune
Best so far is a 7.92@87mph 1/8th mile spinning hard to a 1.8 60ft
I'm expecting mid-low 7s with traction and a tune
Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
Likes: 0
From: Kansas City
I don't have it sorted out yet, just recently got a stall and now I'm not hooking. Also still running a mail order tune. Went to get a tune but the driveshaft snapped so that ended that for now...trying to get it back together.
Best so far is a 7.92@87mph 1/8th mile spinning hard to a 1.8 60ft
I'm expecting mid-low 7s with traction and a tune
Best so far is a 7.92@87mph 1/8th mile spinning hard to a 1.8 60ft
I'm expecting mid-low 7s with traction and a tune
Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
Likes: 0
From: Kansas City
i'm no expert but i would think a peaky cam like the t-rex would be less than ideal. most guys with a t-rex or similar grind have a lot of gear and a very light raceweight to run a number. i'd be looking for a broad torque band. why not get Pat G or Predator Z to spec something around your setup? atleast you would have a cam that meets your criteria
Thread Starter
TECH Apprentice
Joined: Jul 2006
Posts: 301
Likes: 0
From: Kansas City
i'm no expert but i would think a peaky cam like the t-rex would be less than ideal. most guys with a t-rex or similar grind have a lot of gear and a very light raceweight to run a number. i'd be looking for a broad torque band. why not get Pat G or Predator Z to spec something around your setup? atleast you would have a cam that meets your criteria
