10.0 na?
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
Likes: 43
From: Longview Texas
I saw his engine for sale and would love to go that route but don't have 15K. It's a GREAT deal and would get me where I want to be NA but that's not in the cards right now.
Scott
Scott
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
Likes: 43
From: Longview Texas
Makes sense.
I'm thinking a well setup H/C car should make 425-450+ depending on dyno,etc.
Say 435 n/a + 130 N20 = 565whp
That should give the car potential for consistent 10.0's. Of course you need to iron out track details but the formula makes sense.
Years ago we had an auto in our camp that ran 10.5x's- 10.8x's n/a and 10.0's with nitrous. This car was relatively heavy and in street trim with basically no weight removal.
It ran a best of 9.7x on a good track/air day.
I also believe my n/a motor would easily run consistent 9.9x's setup properly and tuned well in an auto like yours and would be relatively bullet proof.
I'm thinking a well setup H/C car should make 425-450+ depending on dyno,etc.
Say 435 n/a + 130 N20 = 565whp
That should give the car potential for consistent 10.0's. Of course you need to iron out track details but the formula makes sense.
Years ago we had an auto in our camp that ran 10.5x's- 10.8x's n/a and 10.0's with nitrous. This car was relatively heavy and in street trim with basically no weight removal.
It ran a best of 9.7x on a good track/air day.
I also believe my n/a motor would easily run consistent 9.9x's setup properly and tuned well in an auto like yours and would be relatively bullet proof.
Scott
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
A 243 in the hands of a talented head porter will do well also.
But make sure they deal with the entire workings of the heads.
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
We'll be doing some testing here soon.
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
Likes: 43
From: Longview Texas
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
We will be testing a new port design for big power on the 243 heads and other GM heads. They will be available with and without core and with options. Test results coming soon. I'll get out more info as it comes available.
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
A H/C/I 346 ain't going anywhere near 10.0s.. Hell I'd be very surprised to see one run 10.50s honestly...Gonna need to be gutted....
We have a 3200lb 67' Camaro in our group that runs 9.79-9.88s@137 with 1.38 60's, it has a 420", pump gas SBC, hyd roller that dynoed 640hp on an engine dyno.... The car has a T350, 8" converter and full suspension...That was in +400' DA.
Point being is, that would have to be a KILLER 346 to make 600 crank HP NA, and that C5 would have to be gutted to go 3200lb raceweight.
10.70-10.80s is much more realistic... Then throw a 150 shot on it and go for 9.80s
We have a 3200lb 67' Camaro in our group that runs 9.79-9.88s@137 with 1.38 60's, it has a 420", pump gas SBC, hyd roller that dynoed 640hp on an engine dyno.... The car has a T350, 8" converter and full suspension...That was in +400' DA.
Point being is, that would have to be a KILLER 346 to make 600 crank HP NA, and that C5 would have to be gutted to go 3200lb raceweight.
10.70-10.80s is much more realistic... Then throw a 150 shot on it and go for 9.80s
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
Likes: 43
From: Longview Texas
A H/C/I 346 ain't going anywhere near 10.0s.. Hell I'd be very surprised to see one run 10.50s honestly...Gonna need to be gutted....
We have a 3200lb 67' Camaro in our group that runs 9.79-9.88s@137 with 1.38 60's, it has a 420", pump gas SBC, hyd roller that dynoed 640hp on an engine dyno.... The car has a T350, 8" converter and full suspension...That was in +400' DA.
Point being is, that would have to be a KILLER 346 to make 600 crank HP NA, and that C5 would have to be gutted to go 3200lb raceweight.
10.70-10.80s is much more realistic... Then throw a 150 shot on it and go for 9.80s
We have a 3200lb 67' Camaro in our group that runs 9.79-9.88s@137 with 1.38 60's, it has a 420", pump gas SBC, hyd roller that dynoed 640hp on an engine dyno.... The car has a T350, 8" converter and full suspension...That was in +400' DA.
Point being is, that would have to be a KILLER 346 to make 600 crank HP NA, and that C5 would have to be gutted to go 3200lb raceweight.
10.70-10.80s is much more realistic... Then throw a 150 shot on it and go for 9.80s
Scott
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Melting Slicks
Joined: Nov 2009
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.
Melting Slicks
Joined: Nov 2009
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I think was is meant is....there are a handful of n/a 346" that have went quicker than 10.50. Some have even went teen and one went high nines. All n/a 346" combos. Hell, one of them is still driven daily.
I personally feel the 3200lb you are calling out...very unrealistic for a h/c car. Factory C5Z came in at 3050lbs and most of your bolt-ons weigh lighter than factory components. Hell a decent drag pack will shed close to 100lbs.
I'm under 2850lbs (without me) and I still have a/c and HUD.
These are just my takes on the topic. I will let Rob and Pete speak for them selves.
.
Le Mans Master
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
I think was is meant is....there are a handful of n/a 346" that have went quicker than 10.50. Some have even went teen and one went high nines. All n/a 346" combos. Hell, one of them is still driven daily.
I personally feel the 3200lb you are calling out...very unrealistic for a h/c car. Factory C5Z came in at 3050lbs and most of your bolt-ons weigh lighter than factory components. Hell a decent drag pack will shed close to 100lbs.
I'm under 2850lbs (without me) and I still have a/c and HUD.
These are just my takes on the topic. I will let Rob and Pete speak for them selves.
.
I personally feel the 3200lb you are calling out...very unrealistic for a h/c car. Factory C5Z came in at 3050lbs and most of your bolt-ons weigh lighter than factory components. Hell a decent drag pack will shed close to 100lbs.
I'm under 2850lbs (without me) and I still have a/c and HUD.
These are just my takes on the topic. I will let Rob and Pete speak for them selves.
.
Yeah I've seen some Z06s sub 3000lbs before a driver... So say 3180lbs race ready..
Where as the OP has a C5 AUTO coupe... I bet he is 3400lbs raceweight on bogarts... Or slightly under..
And yes I'm with you on the ringer 346s going bottom 10s but it is DEFINTELY not the norm....maybe on a highly scienced out, very efficient, good working chasis but...not common..
Most average H/C/I auto C5s with decent setups struggle to go in the 10s at full weight.....
We've had a couple over achiever stick C5Zs down here go 11.20-11.30s on H/C/I setups on CCWs and good drivers... Most of these dynoed 470+ and was running in +500' air...(which is pretty good for us)..
We don't get the -2000' magical unicorn cave air that the NE guys get... (Atco etc etc).. We'd all be -3/+3 faster too..
Le Mans Master
Joined: Nov 2003
Posts: 8,308
Likes: 157
From: NJ
Yeah I've seen some Z06s sub 3000lbs before a driver... So say 3180lbs race ready..
Where as the OP has a C5 AUTO coupe... I bet he is 3400lbs raceweight on bogarts... Or slightly under..
And yes I'm with you on the ringer 346s going bottom 10s but it is DEFINTELY not the norm....maybe on a highly scienced out, very efficient, good working chasis but...not common..
Most average H/C/I auto C5s with decent setups struggle to go in the 10s at full weight.....
We've had a couple over achiever stick C5Zs down here go 11.20-11.30s on H/C/I setups on CCWs and good drivers... Most of these dynoed 470+ and was running in +500' air...(which is pretty good for us)..
We don't get the -2000' magical unicorn cave air that the NE guys get... (Atco etc etc).. We'd all be -3/+3 faster too..
Where as the OP has a C5 AUTO coupe... I bet he is 3400lbs raceweight on bogarts... Or slightly under..
And yes I'm with you on the ringer 346s going bottom 10s but it is DEFINTELY not the norm....maybe on a highly scienced out, very efficient, good working chasis but...not common..
Most average H/C/I auto C5s with decent setups struggle to go in the 10s at full weight.....
We've had a couple over achiever stick C5Zs down here go 11.20-11.30s on H/C/I setups on CCWs and good drivers... Most of these dynoed 470+ and was running in +500' air...(which is pretty good for us)..
We don't get the -2000' magical unicorn cave air that the NE guys get... (Atco etc etc).. We'd all be -3/+3 faster too..
Several cars have used one formula that works in street car form . It's more in the setup then the air IME.
But we all know what it takes and it's not easy and involves some compromises, a solid 60' , and good air of course.
In an efficient race car chassis I believe a cam only 346 can go 10.0 consistently but didn't even want to bring that up.
AMP Racing
Joined: Aug 2006
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From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
2017 C5 of Year Finalist
St. Jude Donor '09-'10-'11-'12
Al Corda and Jeremy Preston have both been low tens with an LS 1 corvette in NHRA legal trim. I think Al even hit a 9 once.
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
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From: Longview Texas
Scott
Le Mans Master
Joined: Mar 1999
Posts: 6,029
Likes: 85
From: Palm Coast, FL
Anger Management Racing built my motor three or more years ago and it's out in the parking lot (as usual) at work right now and I'll bet it can run a 10.5 in your Texas heat N/A. Maybe a 50 shot in second gear will put in into the 10.00 spot ...
Sounds like excuses of why not to complete a car to me
As they say on Street Outlaws:
"Thats because Texas BLOWS!"
Sounds like excuses of why not to complete a car to me
As they say on Street Outlaws:
"Thats because Texas BLOWS!"
Drifting
Joined: Jan 2012
Posts: 1,265
Likes: 16
From: Lakeside AZ
IMO, anyone running a 10.00 or less with just an LS1, is...
1. A stripped out vehicle
2. Not any kind of LS1 as most folks know it
3. Would not make a 100 mile round trip without overheating or other serious issue.
4. Possibly fudging the truth/details
Again, just my opinion.
1. A stripped out vehicle
2. Not any kind of LS1 as most folks know it
3. Would not make a 100 mile round trip without overheating or other serious issue.
4. Possibly fudging the truth/details
Again, just my opinion.
Last edited by dbs1vette; Aug 25, 2014 at 07:40 PM.
Thread Starter
Burning Brakes
Joined: Feb 2012
Posts: 1,047
Likes: 43
From: Longview Texas
Yeah I've seen some Z06s sub 3000lbs before a driver... So say 3180lbs race ready..
Where as the OP has a C5 AUTO coupe... I bet he is 3400lbs raceweight on bogarts... Or slightly under..
And yes I'm with you on the ringer 346s going bottom 10s but it is DEFINTELY not the norm....maybe on a highly scienced out, very efficient, good working chasis but...not common..
Most average H/C/I auto C5s with decent setups struggle to go in the 10s at full weight.....
We've had a couple over achiever stick C5Zs down here go 11.20-11.30s on H/C/I setups on CCWs and good drivers... Most of these dynoed 470+ and was running in +500' air...(which is pretty good for us)..
We don't get the -2000' magical unicorn cave air that the NE guys get... (Atco etc etc).. We'd all be -3/+3 faster too..
Where as the OP has a C5 AUTO coupe... I bet he is 3400lbs raceweight on bogarts... Or slightly under..
And yes I'm with you on the ringer 346s going bottom 10s but it is DEFINTELY not the norm....maybe on a highly scienced out, very efficient, good working chasis but...not common..
Most average H/C/I auto C5s with decent setups struggle to go in the 10s at full weight.....
We've had a couple over achiever stick C5Zs down here go 11.20-11.30s on H/C/I setups on CCWs and good drivers... Most of these dynoed 470+ and was running in +500' air...(which is pretty good for us)..
We don't get the -2000' magical unicorn cave air that the NE guys get... (Atco etc etc).. We'd all be -3/+3 faster too..
) so race weight is around 3200. Scott