Now go and drive it and enjoy Brian. 
Dyno tuned tr224/AS heads
Dyno tuned tr224/AS heads Well the results were not what I tought it would be, (409/382)but Bille did a great job to get the A/F were it should be in the middle. It was very lean in the middle, but up top it was pretty good. No knock retard what so ever and the hp graph is very smooth. I am still concerned with the touque curve. Bille thought the cats are holding me back on both. They are the TTS cats and their y-pipe. I guess they are really restricted.
Couple questions for you guys...
1. Do you think changing over to a car sound (higher flowing cats) wil help?
(Don't want to get rid of them (cats) because the sound will go to ****)
2. Are these typical numbers for my combo? Am I missing something?
Heres the A/F graph and dyno graph.
Couple questions for you guys...
1. Do you think changing over to a car sound (higher flowing cats) wil help?
(Don't want to get rid of them (cats) because the sound will go to ****)
2. Are these typical numbers for my combo? Am I missing something?
Heres the A/F graph and dyno graph.
I agree you should be putting down more power than what you are currently. Do you have an air lid? I don't see one listed in your mods. I see a YT in your mods list. Does that stand for Yella Terras? If so, are you certain that you have them adjusted or shimmed correctly? What clutch are you running? If it is the stock clutch it may be at the end of its life with that much power. Also the cats are definitely robbing some HP. Maybe even close to 10-15 hp.
As the others have said the cats are holding you back. How much exactly is hard to say until they are removed. Ive seen 10-25 hp lost from cats on friends cars. I would drop the cats just to see but Im sure you would see atleast 420-430 hp which is a nice # for that cam size. Also alot of people have cut outs that they open. That could get you another 10hp
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Good numbers Brian. I assure you with the correct exhaust the sounds doesn't go to **** with an offroad pipe. My car is very quite and smooth with 0 rasp without cats. Yank um off and go get 420! That is my goal with AS 5.3's!
John
John
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Verdad Gallardo Thanks guys for the input. I am actually happy with the power, but you all know what this internet is like, there is always someone getting better numbers than you with a simular setup and you want the cake and eat it too. 
I think I may try an offroad pipe. Won't cost to must to put together and if I don't like it, I can throw the cats back in as well as some high flow cats.
Once again, I just want to than Bille for tuning it for me. He answered all my questions and I felt he did a great job. He took his time and made sure I was happy with what he did. Tuners can make some things happen, but miracles are hard to do. Also the numbers came from stock tire pressures, SLP air lid and all your belts. We did pick up 4 hp by just raising the lid a few inches.
Crash 02, I never did check the preload with the new heads, will do so. I was in the 1 to 1-1/4 turns before heads without shims. Stock clutch still. Seems pretty good still from driving. And I have the SLP air lid with a Holley Powershot.
I think I may try an offroad pipe. Won't cost to must to put together and if I don't like it, I can throw the cats back in as well as some high flow cats.
Once again, I just want to than Bille for tuning it for me. He answered all my questions and I felt he did a great job. He took his time and made sure I was happy with what he did. Tuners can make some things happen, but miracles are hard to do. Also the numbers came from stock tire pressures, SLP air lid and all your belts. We did pick up 4 hp by just raising the lid a few inches.
Crash 02, I never did check the preload with the new heads, will do so. I was in the 1 to 1-1/4 turns before heads without shims. Stock clutch still. Seems pretty good still from driving. And I have the SLP air lid with a Holley Powershot.
I would leave the cats on and with the price of the free flowing cats get dual electric cutout and install them before the cats. U will pick up at least 10rwhp. I picked up 7rwhp and 13rwtq by taking the FLP cats off and having a more restrictive catback(hooker VS LM). When i opened the cutout i picked up another 7rwhp and 4rwtq. So that is a total of 14rwhp 17rwtq with no cats and a cutout.
Here is the before with cats through the exhaust and after with no cats and cutout
http://www.msnusers.com/CarsRelatedG...hoto&PhotoID=7
Here is the before with cats through the exhaust and after with no cats and cutout
http://www.msnusers.com/CarsRelatedG...hoto&PhotoID=7
My only problem wuth the cutouts are; my cats basically bolt right up to the header flange, the sound of cutouts under the car may become pretty harsh(I know I can close them, but you know they stay open more than closed), and the cost of two electronic cutouts isn't cheap.
I think I will make me some off road pipes to replace the cats, and see what it does. Maybe even a single cutout towards the axle. May not happen for awhile though. I hate working on my exhaust. To many problems happen. The motor is so much easier!!
Do you guys think there is any improvement in swapping on a FAST intake? I know my "small" cam will not be able to take full advantage of it, but I was wondering if anyone has seen any differences on the smaller head and cam cars.
I think I will make me some off road pipes to replace the cats, and see what it does. Maybe even a single cutout towards the axle. May not happen for awhile though. I hate working on my exhaust. To many problems happen. The motor is so much easier!!
Do you guys think there is any improvement in swapping on a FAST intake? I know my "small" cam will not be able to take full advantage of it, but I was wondering if anyone has seen any differences on the smaller head and cam cars.
Originally Posted by Brian2001SS
My only problem wuth the cutouts are; my cats basically bolt right up to the header flange, the sound of cutouts under the car may become pretty harsh(I know I can close them, but you know they stay open more than closed), and the cost of two electronic cutouts isn't cheap.
Get Mccord electric cutouts. They are only 100 bucks each. U can extend the cats a little bit after the collector and install the cutouts and that would solve ur power problems
Originally Posted by Brian2001SS
Well the results were not what I tought it would be, (409/382)but Bille did a great job to get the A/F were it should be in the middle. It was very lean in the middle, but up top it was pretty good. No knock retard what so ever and the hp graph is very smooth. I am still concerned with the touque curve. Bille thought the cats are holding me back on both. They are the TTS cats and their y-pipe. I guess they are really restricted.
Couple questions for you guys...
1. Do you think changing over to a car sound (higher flowing cats) wil help?
(Don't want to get rid of them (cats) because the sound will go to ****)
2. Are these typical numbers for my combo? Am I missing something?
Heres the A/F graph and dyno graph.
Couple questions for you guys...
1. Do you think changing over to a car sound (higher flowing cats) wil help?
(Don't want to get rid of them (cats) because the sound will go to ****)
2. Are these typical numbers for my combo? Am I missing something?
Heres the A/F graph and dyno graph.
Last year, I had a TR 224 cam with SLP LT with and with out cats, taking the cats off only got my 4-5 more HP. My final numbers were 412 HP & 396 TQ with my TR 224 & Absolute Stage 2 Heads.
Why is your A/F set at 13.0? I always tune mine and others to 12.5 on the dyno since it doesn't truely "load" your car like the street does, basically, you'll run a tad leaner on the street.
What is you timing set at? Since you have a 2001 SS like me, from .72 down and over, I add 2 degrees timing (from 0 to 7000+ RPM) and then step up timing to 27-28 degrees from around 5,200 on up.
Billiumss has a point about the A/F. If you add a little more fuel you would see yhe torque come up, heck it might make alittle more power. Mine liked the adding of fuel. There is more load on the car on the street than the dyno. Good luck man! You been to the track yet?
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Joined: Nov 2001
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Originally Posted by Brian2001SS
Thanks guys for the input. I am actually happy with the power, but you all know what this internet is like, there is always someone getting better numbers than you with a simular setup and you want the cake and eat it too.
I noticed a trend with LS1's and cams. The cams that have more exhaust duration than intake are getting better TQ numbers. I think if u went with a 224/230 u will increase ur TQ if u want. My car put down the same TQ numbers without pulleys, ported TB or heads. Go with a 226/230 .580 .590 112 or 114 and u will make more HP and TQ.
Originally Posted by 00SS4780
Billiumss has a point about the A/F. If you add a little more fuel you would see yhe torque come up, heck it might make alittle more power. Mine liked the adding of fuel. There is more load on the car on the street than the dyno. Good luck man! You been to the track yet?
Billiumss, we did add a little fuel at the top. You can see it in the difference in the two A/F graphs (somewhere around 12.8-12.9). It actually lost 1 hp, but I didn't look at what it did to the torque. What role does exhaust restriction (cats) play in torque curves? I know it hurts it, but how? (other than just not letting all the combustion exit the cylinders)
I know the timing was set at 28 deg. Where, I am not sure. Will email Bille and ask.
Thanks guys!!!
Originally Posted by LSs1Power
I noticed a trend with LS1's and cams. The cams that have more exhaust duration than intake are getting better TQ numbers. I think if u went with a 224/230 u will increase ur TQ if u want. My car put down the same TQ numbers without pulleys, ported TB or heads. Go with a 226/230 .580 .590 112 or 114 and u will make more HP and TQ.
Originally Posted by Chris ARE 360
I wouldnt worry about that. Alot of numbers posted aren't accurate or are inflated artificially with dyno tricks or dyno manipulation. See what the car runs at the track and enjoy your ride
(manipulating it is a better way to say it)