want your thoughts.... 227/231 .614 .617 110lsa or 112lsa
#1
want your thoughts.... 227/231 .614 .617 110lsa or 112lsa
I am in the process of SLOWLY building the ls1/t56 for my FC rx7... when i have time
Anyway i was wondering what your thoughts are on this cam for the FC, ported heads are in my future...
227/231 .614 .617 110
.050
OPEN CLOSE
INT: 3 BTDC 43 ABDC
EXH: 45 BBCD 5 ATDC
@110 ICL
I also have the same cam on a 112 lsa...
Wich one would you use and why?
I dont think there is any advance ground into them, thinking i should get an adjustable timing chain to advance it 2-3*....
Anyway i was wondering what your thoughts are on this cam for the FC, ported heads are in my future...
227/231 .614 .617 110
.050
OPEN CLOSE
INT: 3 BTDC 43 ABDC
EXH: 45 BBCD 5 ATDC
@110 ICL
I also have the same cam on a 112 lsa...
Wich one would you use and why?
I dont think there is any advance ground into them, thinking i should get an adjustable timing chain to advance it 2-3*....
#4
TECH Senior Member
I would go for the 110 LSA, if you degree it and install it at 110 ICL it will have a very nice power-band. It will also have a nice 9* overlap which is a sweet zone for the cubes at hand.
If you are comfortable degreeing cams, you might want to advance 2* for 108 ICL but that would depend on your preference in power range and shift points.
If you are comfortable degreeing cams, you might want to advance 2* for 108 ICL but that would depend on your preference in power range and shift points.
#5
TECH Enthusiast
iTrader: (19)
That is a nice sized cam for an ls1 that will make very strong power throughout the rpm range. This cam won't make a big dyno # but will have better low to mid range power while only falling a little short on the top end. I would use this cam in a bone stock ls1 longblock to make good power. Use the 110 LSA.
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#8
not wanting to turn the motor more than 6800-6900rpm...
the rx7 will weigh 2800# with full tank and me inside, the gears are 4.10s...
I obviously want to use all the powerband i can, i dont want it to make power to 7500 and only use half the powerband lol...
If i could get the powerband to peak around 6800 that would be aswesome
the rx7 will weigh 2800# with full tank and me inside, the gears are 4.10s...
I obviously want to use all the powerband i can, i dont want it to make power to 7500 and only use half the powerband lol...
If i could get the powerband to peak around 6800 that would be aswesome
#9
TECH Resident
iTrader: (1)
The OP's car is only 2800 lbs and with 4.10 gears he doesn't need a 110 lsa cam. Maybe if he had a carb style intake manifold.
Russ Kemp
#10
TECH Senior Member
Your G5X3 was a high rpm cam, your assumption that a 227 on 110 lsa will die too early is ironic.
The 110 will have stronger cylinder pressures and WILL make more power to the OP desired rpm range.
The 110 will have stronger cylinder pressures and WILL make more power to the OP desired rpm range.
#12
TECH Resident
iTrader: (5)
https://ls1tech.com/forums/dynamometer-results-comparisons/1601398-my-450whp-mamofied-1le-ss.html
I have the same cam on a 114 with a fast 102 and peak at 6300ish. You can look at my dyno thread if interested. Put down 450sae through a 9" and a4. Numbers were corroberated to within 1hp on a mustang as well. Enjoy, go 112.
I have the same cam on a 114 with a fast 102 and peak at 6300ish. You can look at my dyno thread if interested. Put down 450sae through a 9" and a4. Numbers were corroberated to within 1hp on a mustang as well. Enjoy, go 112.
Last edited by therabidweasel; 09-03-2013 at 08:01 AM.
#13
https://ls1tech.com/forums/showthread.php?t=1601398
I have the same cam on a 114 with a fast 102 and peak at 6300ish. You can look at my dyno thread if interested. Put down 450sae through a 9" and a4. Numbers were corroberated to within 1hp on a mustang as well. Enjoy, go 112.
I have the same cam on a 114 with a fast 102 and peak at 6300ish. You can look at my dyno thread if interested. Put down 450sae through a 9" and a4. Numbers were corroberated to within 1hp on a mustang as well. Enjoy, go 112.
#14
TECH Senior Member
#15
A lower ivc will make power peak earlier
You can look at two exact same cams with a different lsa and ivc
TR224/224 112+4
TR224/224 114+4
The 114+4 will make more Peak HP, but the band is higher in rpm.
The 112+4 will make more power under the curve but fall off faster
You can look at two exact same cams with a different lsa and ivc
TR224/224 112+4
TR224/224 114+4
The 114+4 will make more Peak HP, but the band is higher in rpm.
The 112+4 will make more power under the curve but fall off faster
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I agree that a 112 ICL is not right for this cam but for you to make a comment about 8000rpms because of a 45.5 IVC...LMFAO
If it were me I'd install the cam with the 110LSA on a 108ICL or the 112lsa on a 110ICL. Either cam would be good it just depends what the end user wants.
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My point is that the 8000rpm comment was VERY EXAGGERATED! Going from a 43.5 to a 45.5 IVC is only going to change the peak by a couple hundred rpms so theres no need to bash a guys comment about it. A 45.5 IVC is very common in stock cube LS1s. Yes it has a higher peak rpm but nowhere near 8000.
What Russ K was getting at is that you could give up a little low end power in a 2800 lb car. I totally agree with that part but dont think it would work right with the cams mentioned
What Russ K was getting at is that you could give up a little low end power in a 2800 lb car. I totally agree with that part but dont think it would work right with the cams mentioned
Last edited by badassracing; 09-03-2013 at 02:53 PM.