98 m6 c5 228r ported 5.3s half bolts ons hp/tq guesses anyone?
09-24-2010, 07:48 AM
#1
98 m6 c5 228r ported 5.3s half bolts ons hp/tq guesses anyone? ok the car has a 228r cam
ported decked 5.3 heads are 60 cc combustion chambers
215cc intake runner
69cc exhaust runner
2.02 intake valves
1.57 exhaust valve
includes prc .660 spring kit
flow at 28 intake flow at 28 exhaust
1. 74 1. 53.55
2. 145.04 2. 103.95
3. 193.88 3. 136.39
4. 222.00 4. 163.80
5. 248.64 5. 185.85
5.50 260.48 5.50 192.15
6. 266.40 6. 198.45
6.50 272.32 6.50 203.17
a set of texas speed longtube 1 3/4 off roads headers / bassani xpipe and stock catback
powerbond underdrive pulley
zip tie mod
and a ported throttle body
anyone have a guess? it goes to the dyno today around 3 for tuning
ported decked 5.3 heads are 60 cc combustion chambers
215cc intake runner
69cc exhaust runner
2.02 intake valves
1.57 exhaust valve
includes prc .660 spring kit
flow at 28 intake flow at 28 exhaust
1. 74 1. 53.55
2. 145.04 2. 103.95
3. 193.88 3. 136.39
4. 222.00 4. 163.80
5. 248.64 5. 185.85
5.50 260.48 5.50 192.15
6. 266.40 6. 198.45
6.50 272.32 6.50 203.17
a set of texas speed longtube 1 3/4 off roads headers / bassani xpipe and stock catback
powerbond underdrive pulley
zip tie mod
and a ported throttle body
anyone have a guess? it goes to the dyno today around 3 for tuning
09-24-2010, 03:29 PM
#2
415rwhp/410 tq. Look at my sig 
my car only has mild polished and port matching but they flow great overall. The 228R is a great cam with stock or reworked heads. If they are big flow heads a bigger cam is a better option. The good thing with my setup is i'm running higher compression and i get great low RPM power with this cam. If i leave a light i won't usually spin the tires until i get above 3500 rpm's in which i will spin them all day long after that
my car only has mild polished and port matching but they flow great overall. The 228R is a great cam with stock or reworked heads. If they are big flow heads a bigger cam is a better option. The good thing with my setup is i'm running higher compression and i get great low RPM power with this cam. If i leave a light i won't usually spin the tires until i get above 3500 rpm's in which i will spin them all day long after that
09-29-2010, 11:26 PM
#3
415rwhp/410 tq. Look at my sig my car only has mild polished and port matching but they flow great overall. The 228R is a great cam with stock or reworked heads. If they are big flow heads a bigger cam is a better option. The good thing with my setup is i'm running higher compression and i get great low RPM power with this cam. If i leave a light i won't usually spin the tires until i get above 3500 rpm's in which i will spin them all day long after that
my car only has mild polished and port matching but they flow great overall. The 228R is a great cam with stock or reworked heads. If they are big flow heads a bigger cam is a better option. The good thing with my setup is i'm running higher compression and i get great low RPM power with this cam. If i leave a light i won't usually spin the tires until i get above 3500 rpm's in which i will spin them all day long after that it laid down 413rwhp and 387 rwtq with a ls1 intake manifold and stock intake set up on a mustang dyno with a correction factor of 1.
09-30-2010, 08:38 AM
#6
yeah the ls1 intake is coming off and functioning front oxygen sensors are going in since they had no signal when it was on the dyno. Lets see what she does after the ls6 intake sway functioning oxygen sensors and a retune any guesses now?
