The wait is over...Stage 3 AFR Details inside
07-30-2004, 12:03 PM
#81
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Originally Posted by J-Rod
I think McRat's car did well for the "quickie" tune.I think once the tune is finished up the car will pick up power. I also think that if he ditches the 1 7/8" Kooks on the car and swaps over to an LGM he will find all the torque he was missing. I think those headers too much on his car...
We are going to build a 408 when the alum C6 blocks become available, and at that point the 1 7/8" will make sense.
To be honest, I went about things all wrong with the "bolt-ons", and wasted a bit of money "guessing" at stuff instead of "fixing problems".
07-30-2004, 12:42 PM
#82
6600 rpm clutch dump of death Administrator
Originally Posted by McRat
I agree with Kook's being too big. I actually make more HP from 4500-5500 with the mufflers on than the mufflers off (before H/C), which tells me something is wrong. If I wanted to spin the engine higher, they would probably work better.
We are going to build a 408 when the alum C6 blocks become available, and at that point the 1 7/8" will make sense.
To be honest, I went about things all wrong with the "bolt-ons", and wasted a bit of money "guessing" at stuff instead of "fixing problems".
We are going to build a 408 when the alum C6 blocks become available, and at that point the 1 7/8" will make sense.
To be honest, I went about things all wrong with the "bolt-ons", and wasted a bit of money "guessing" at stuff instead of "fixing problems".
You might sell those Kooks, and get in on the LGM header GP if its going to be awhile on the 408...
07-31-2004, 02:33 PM
#85
Originally Posted by J-Rod
I think McRat's car did well for the "quickie" tune.I think once the tune is finished up the car will pick up power. I also think that if he ditches the 1 7/8" Kooks on the car and swaps over to an LGM he will find all the torque he was missing. I think those headers too much on his car...
04-10-2005, 10:59 AM
#87
Originally Posted by dame
Just out of curiousity...... who all have these heads, I'm looking for feedback from actual owners if possible
04-10-2005, 11:07 AM
#88
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Originally Posted by Beast96Z
I have them on my 383. I'll be getting some numbers here in the next week or 2. Mine are Stage 2.5 for stock bore engines. The 3's are for big bore motors. The 2.5's are the same program shrunk .030" to fit a stock bore.
Yeah I know, I have a set (stg 3's) on order for a 408 im building, actually sprung for the extra hand finishing also...... cant wait. I'm just trying to see what kinda of setups these are going on, and numbers (if any) people have gotten
Please keep us posted!! 
04-13-2005, 11:38 PM
#90
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Hey would those heads work well with the SLP ZL-402 LS1 Iron Block? i might be buying that block perhaps the low compression one i plan on perhaps later down the road putting Procharger in it. My 98z ls1 block got a hole in it sucks so i figure ill go with the ZL-402 iron block i always feared that my block would get cracked. Or would a set of Stage 2 or Stage 3 LS6 heads be a better option? Thanks
04-13-2005, 11:53 PM
#91
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Originally Posted by Brian Tooley
0.100 56
0.200 124
0.300 180
0.400 235
0.500 268
0.550 275
0.600 279
The exhaust should be in this range. When we post flow #'s we go a little conservative, if we post the best #'s we have ever seen, then we have to try to match the best every time, which can't be done. Even though they are CNC ported, there are the variables of the valve job and the hand blending, we have even seen valves flow different from batch to batch.
0.200 124
0.300 180
0.400 235
0.500 268
0.550 275
0.600 279
The exhaust should be in this range. When we post flow #'s we go a little conservative, if we post the best #'s we have ever seen, then we have to try to match the best every time, which can't be done. Even though they are CNC ported, there are the variables of the valve job and the hand blending, we have even seen valves flow different from batch to batch.
06-29-2005, 08:10 AM
#93
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I have a set of AFR castings with TEA's stage 3 port. I had them independantly flowed:
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
06-29-2005, 06:27 PM
#95
Originally Posted by 2c5s
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
116 116
166 163
214 211
258 236
271 241
06-29-2005, 06:47 PM
#96
Originally Posted by 2c5s
I have a set of AFR castings with TEA's stage 3 port. I had them independantly flowed:
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
intake numbers fall in line with bench and port variation, exhaust is suspect as usual. still looks like they'll make some great power, what were the port volumes?
06-29-2005, 07:01 PM
#97
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Originally Posted by jrp
bore, bench, radius, and pipe (diameter, length and straight or curved).
intake numbers fall in line with bench and port variation, exhaust is suspect as usual. still looks like they'll make some great power, what were the port volumes?
intake numbers fall in line with bench and port variation, exhaust is suspect as usual. still looks like they'll make some great power, what were the port volumes?
249cc mid 80's exhaust
They made good power over the previous head, I'll swap the 62cc AFR's 225's and compare when they are available. That should be interesting ...huh!!
06-29-2005, 07:09 PM
#98
Originally Posted by 2c5s
sf600, 4 1/8, yes, 1 7/8 curved pipe 6-8 inches... don't recall
249cc mid 80's exhaust
They made good power over the previous head, I'll swap the 62cc AFR's 225's and compare when they are available. That should be interesting ...huh!!
249cc mid 80's exhaust
They made good power over the previous head, I'll swap the 62cc AFR's 225's and compare when they are available. That should be interesting ...huh!!
. i too am awaiting the 62cc 225's but im having mine tailored to my specific application... Last edited by jrp; 06-29-2005 at 10:00 PM.
06-30-2005, 09:50 AM
#99
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Originally Posted by 2c5s
I have a set of AFR castings with TEA's stage 3 port. I had them independantly flowed:
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
TEA intake Actual
157 144
218 205
264 259
307 299
319 316
328 330
TEA Exhaust Actual with a pipe
116 116
166 163
214 211
258 236
271 241
thank you for the numbers, brent just sent me my flow sheet:
0.100 69.8 50.5
0.200 147.3 126.9
0.300 218.1 190.5
0.400 267.5 236.2
0.500 310.1 261.7
0.550 324.2 268.2
0.600 337.8 271.8
