206/212 cam track results
08-21-2004, 07:25 PM
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206/212 cam track results previous track times under similar conditions:
1.906 8.299@85.44 12.897@107.77
1.909 8.299@85.23 12.896@107.66
new times with cam change only:
1.913 8.244@88.06 12.799@108.44
1.895 8.236@87.54 12.799@108.43
This is just initial runs. I still need to find the optimum shift points and the best way to launch. I think a few hundredths can be found in the 60 ft when I get the launch down right. The cam is torquier off the line so I had to lower tire pressure a couple of pounds to 15 psi to hook. The first half of the track feels much quicker. At least I didn't lose anything up top.
Overall, the cam is giving me most of what I wanted. Improved low end from right off idle. A healthy mid range charge and a little gain up top without losing any rpm capabilities over stock. No special tuning used or needed. A little choppy idle. Runs ok with stock exhaust manifolds/cats.
I hope a few of you guys find this interesting. There was hardly any information out there on these small street cam performance. FYI, the cam specs are 206/212 dur@50, .515"int/.522"ex lift, 112 LSA installed on a 112 ICL.
1.906 8.299@85.44 12.897@107.77
1.909 8.299@85.23 12.896@107.66
new times with cam change only:
1.913 8.244@88.06 12.799@108.44
1.895 8.236@87.54 12.799@108.43
This is just initial runs. I still need to find the optimum shift points and the best way to launch. I think a few hundredths can be found in the 60 ft when I get the launch down right. The cam is torquier off the line so I had to lower tire pressure a couple of pounds to 15 psi to hook. The first half of the track feels much quicker. At least I didn't lose anything up top.
Overall, the cam is giving me most of what I wanted. Improved low end from right off idle. A healthy mid range charge and a little gain up top without losing any rpm capabilities over stock. No special tuning used or needed. A little choppy idle. Runs ok with stock exhaust manifolds/cats.
I hope a few of you guys find this interesting. There was hardly any information out there on these small street cam performance. FYI, the cam specs are 206/212 dur@50, .515"int/.522"ex lift, 112 LSA installed on a 112 ICL.
Last edited by nuzee; 08-22-2004 at 02:58 AM.
08-22-2004, 03:45 AM
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Gee, I guess nobody is impressed with my 1/8th mph improvement, LOL!
Venom
35thSS is right. I test-n-tune at HRP. I don't go out as often as the regulars, maybe once every or every-other month. Maybe I'll see you there one of these days.
JRP
You are right about getting a TC if all I wanted to do was to go fast. In fact all of my mods would be different if that was my goal. But, I am trying to stick to my original plan and focus my modifications to increase drivability. My driving is done at 2 EXTREMES. It is either snailed pace stop & go city driving where I don't get past 35 mph or it is WOT at the track about 6-8 times a year. I chose to make my daily snailed-pace commute more fun by increasing off-idle, part-throttle power and response. I'd lose the throttle feel if I would install a high stall TC. So, that is why I haven't gone the TC route. One of these days, I'm going to change my goals and go for better track times. But for now, my target is trying to get my LS1 to feel right off-idle like a torquey old LT1 F-body or Vette. So far gears & cam have brought the car a long ways from what it originally felt like.
CONCLUSION: This cam adds torque from 550 rpm on a 5.7 liter LS1. The entire powerband gets a nice boost in power over stock cam. More emphasized power in the lower end (if I am analyzing my timeslip correctly). A little is gained at the upper rpms and the rpm range is increased at least 300 rpm more than the stock cam if installed 2 degrees retarded. I found its "plug-n-play" qualities very appealing too.
Venom
35thSS is right. I test-n-tune at HRP. I don't go out as often as the regulars, maybe once every or every-other month. Maybe I'll see you there one of these days.
JRP
You are right about getting a TC if all I wanted to do was to go fast. In fact all of my mods would be different if that was my goal. But, I am trying to stick to my original plan and focus my modifications to increase drivability. My driving is done at 2 EXTREMES. It is either snailed pace stop & go city driving where I don't get past 35 mph or it is WOT at the track about 6-8 times a year. I chose to make my daily snailed-pace commute more fun by increasing off-idle, part-throttle power and response. I'd lose the throttle feel if I would install a high stall TC. So, that is why I haven't gone the TC route. One of these days, I'm going to change my goals and go for better track times. But for now, my target is trying to get my LS1 to feel right off-idle like a torquey old LT1 F-body or Vette. So far gears & cam have brought the car a long ways from what it originally felt like.
CONCLUSION: This cam adds torque from 550 rpm on a 5.7 liter LS1. The entire powerband gets a nice boost in power over stock cam. More emphasized power in the lower end (if I am analyzing my timeslip correctly). A little is gained at the upper rpms and the rpm range is increased at least 300 rpm more than the stock cam if installed 2 degrees retarded. I found its "plug-n-play" qualities very appealing too.
08-22-2004, 04:32 AM
#6
i understand what your saying but you didnt even gain a full tenth or mile per hour in the 1/4. you'd of been better off with bolt ons then going through all that trouble doing a cam/spring install. do you have a dyno of your setup, im curious to see your 2000-4000 tq curve as compard to a 220-224 grind.
oh, and i saw you 1/8 mph improvement but the 1320 is what counts
oh, and i saw you 1/8 mph improvement but the 1320 is what counts
08-22-2004, 05:10 AM
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Originally Posted by jrp
i understand what your saying but you didnt even gain a full tenth or mile per hour in the 1/4. you'd of been better off with bolt ons then going through all that trouble doing a cam/spring install. do you have a dyno of your setup, im curious to see your 2000-4000 tq curve as compard to a 220-224 grind.
oh, and i saw you 1/8 mph improvement but the 1320 is what counts
oh, and i saw you 1/8 mph improvement but the 1320 is what counts
I prefer doing track runs to evaluate modifications.I would be lying to you if I said that 1/4 mile times didn't matter to me. But, I had to do ALOT of soul searching to stay focused on my main target of better driveability. If I have to give up trap speed for a decent idle & low end power, then so be it.
The cam swap ended up costing me a little over $430 including seals & fluids. I feel this modification every time I touch the throttle. I find some value in that alone. Ahh, enough of this talk already. Different strokes for different folks.
If better 1/4 performance is what you are after, you can find a better cam out there. If low end torque gets your fancy, this cam can give it to you. That is all...
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08-22-2004, 05:26 AM
#8
Originally Posted by nuzee
Dyno??? what's a dyno?? j/k I prefer doing track runs to evaluate modifications.
I would be lying to you if I said that 1/4 mile times didn't matter to me. But, I had to do ALOT of soul searching to stay focused on my main target of better driveability. If I have to give up trap speed for a decent idle & low end power, then so be it.
The cam swap ended up costing me a little over $430 including seals & fluids. I feel this modification every time I touch the throttle. I find some value in that alone. Ahh, enough of this talk already. Different strokes for different folks.
If better 1/4 performance is what you are after, you can find a better cam out there. If low end torque gets your fancy, this cam can give it to you. That is all...
I prefer doing track runs to evaluate modifications.I would be lying to you if I said that 1/4 mile times didn't matter to me. But, I had to do ALOT of soul searching to stay focused on my main target of better driveability. If I have to give up trap speed for a decent idle & low end power, then so be it.
The cam swap ended up costing me a little over $430 including seals & fluids. I feel this modification every time I touch the throttle. I find some value in that alone. Ahh, enough of this talk already. Different strokes for different folks.
If better 1/4 performance is what you are after, you can find a better cam out there. If low end torque gets your fancy, this cam can give it to you. That is all...
08-22-2004, 07:08 AM
#10
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Originally Posted by nuzee
Gee, I guess nobody is impressed with my 1/8th mph improvement, LOL!
Venom
35thSS is right. I test-n-tune at HRP. I don't go out as often as the regulars, maybe once every or every-other month. Maybe I'll see you there one of these days.
JRP
You are right about getting a TC if all I wanted to do was to go fast. In fact all of my mods would be different if that was my goal. But, I am trying to stick to my original plan and focus my modifications to increase drivability. My driving is done at 2 EXTREMES. It is either snailed pace stop & go city driving where I don't get past 35 mph or it is WOT at the track about 6-8 times a year. I chose to make my daily snailed-pace commute more fun by increasing off-idle, part-throttle power and response. I'd lose the throttle feel if I would install a high stall TC. So, that is why I haven't gone the TC route. One of these days, I'm going to change my goals and go for better track times. But for now, my target is trying to get my LS1 to feel right off-idle like a torquey old LT1 F-body or Vette. So far gears & cam have brought the car a long ways from what it originally felt like.
CONCLUSION: This cam adds torque from 550 rpm on a 5.7 liter LS1. The entire powerband gets a nice boost in power over stock cam. More emphasized power in the lower end (if I am analyzing my timeslip correctly). A little is gained at the upper rpms and the rpm range is increased at least 300 rpm more than the stock cam if installed 2 degrees retarded. I found its "plug-n-play" qualities very appealing too.
Venom
35thSS is right. I test-n-tune at HRP. I don't go out as often as the regulars, maybe once every or every-other month. Maybe I'll see you there one of these days.
JRP
You are right about getting a TC if all I wanted to do was to go fast. In fact all of my mods would be different if that was my goal. But, I am trying to stick to my original plan and focus my modifications to increase drivability. My driving is done at 2 EXTREMES. It is either snailed pace stop & go city driving where I don't get past 35 mph or it is WOT at the track about 6-8 times a year. I chose to make my daily snailed-pace commute more fun by increasing off-idle, part-throttle power and response. I'd lose the throttle feel if I would install a high stall TC. So, that is why I haven't gone the TC route. One of these days, I'm going to change my goals and go for better track times. But for now, my target is trying to get my LS1 to feel right off-idle like a torquey old LT1 F-body or Vette. So far gears & cam have brought the car a long ways from what it originally felt like.
CONCLUSION: This cam adds torque from 550 rpm on a 5.7 liter LS1. The entire powerband gets a nice boost in power over stock cam. More emphasized power in the lower end (if I am analyzing my timeslip correctly). A little is gained at the upper rpms and the rpm range is increased at least 300 rpm more than the stock cam if installed 2 degrees retarded. I found its "plug-n-play" qualities very appealing too.
I run a small MMS 220* Cam: .585"/.585" 220*/220* @.050" on a 112* LSA.
It has 2* advance ground in, i advanced it 4* with stock gears(3.42)
This hurt dyno power -13rwhp but added 12 ft.lbs of torque. This helped ET and accelleration , now i have 4.10 gears and car ran better with cam straight up. My next change is to retard cam 4* so ICL is 114*, if i gain 10 to 13rwhp and 300 more rpm, i consider this a great step forward, before i consider a larger cam. The reason i'm `posting on this is small cams can work very well, i made 407rwhp and 392 ft. lbs on stock rear with 3.42's, ive run 1.76 60 ft. on 8" QTP's. My sig tells the rest of my cars perf. You should know that tuning and headers made the car run and drive close to stock driveability with way more power.
08-22-2004, 09:39 AM
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Nice! I think the mph gains in the eigth reflect that you hit upon what you were looking for. How is the midrange feeling these days?
I've got some more info to add about my cam in the short duration thread...
I've got some more info to add about my cam in the short duration thread...
08-22-2004, 02:19 PM
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You spent all that time/money for 1/10th?
If it was me I would have went with a Z06 cam (did I just say that? Cheaper and better for his purposes I guess) or a B1 cam or a Stealth II cam.
I mean, you got 1/10. People see better than that with a lid/catback/intake/pulley <--- Pick one
I dunno, if you're happy I guess I'll be happy for you.
Question:
Wouldn't it be cheaper/better/easier/more sane to take the $1000+ mods you spent on the car already and buy a beater to drive to work, and save for real mods on your car?
If it was me I would have went with a Z06 cam (did I just say that? Cheaper and better for his purposes I guess) or a B1 cam or a Stealth II cam.
I mean, you got 1/10. People see better than that with a lid/catback/intake/pulley <--- Pick one
I dunno, if you're happy I guess I'll be happy for you.
Question:
Wouldn't it be cheaper/better/easier/more sane to take the $1000+ mods you spent on the car already and buy a beater to drive to work, and save for real mods on your car?
08-22-2004, 04:27 PM
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Originally Posted by Joe Bronikowski
nuzee,
A couple questions:
1) Your sig says "QTPs" - is this headers or cut-outs?
2) Have you checked your WOT O2's before & after? Any change?
A couple questions:
1) Your sig says "QTPs" - is this headers or cut-outs?
2) Have you checked your WOT O2's before & after? Any change?
I didn't have time to check out the log of my O2 readings yet.
08-22-2004, 04:43 PM
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This post was intended to provide some numbers about the 206/212 cam. It was not meant to be evaluated as a drag racing type post. Track times just happens to be the method that I use to evaluate the mod. I'm embarrassed that this post ended up in the drag racing results section. Too bad there isn't a "Street Performance Modification" section for threads like this. 
08-25-2004, 11:10 AM
#17
