110LSA on 230/236?
Registered User
Joined: Mar 2002
Posts: 2,058
From: near waco tx.
I have the 236 242 in my stroker. It is not good on the street. I drive two footed. My 1-2 shift is at 6200, ans 2-3 shift is at 6400 at the track. I do have CNC heads, 1.6 rr's, and longtubes...
idling at 750-800, i sometimes stall coming out of park.
video of it in my sig. it chops hard!
thats in a stroker that tames it a ton, I have stock heads (not for long!) which quiet it and it sounds a lot less noisy in the video than in real life
you can also take that cam to 6900 rpms or so, so the power might be out of reach on stock bottom end.
the 230/236 should rev to around 6500.
Id personally reccomend a 232/234
now both these have hte cam. but notice neither would recomend it for a street car.
Registered User
Joined: Mar 2002
Posts: 2,058
From: near waco tx.
Originally posted by NiteRider
Yeah, if you can find that thread that would be great. My friend dynoed hes 236/242 on a 112 and he toped of at 5900 @ 375 hp.
Yeah, if you can find that thread that would be great. My friend dynoed hes 236/242 on a 112 and he toped of at 5900 @ 375 hp.
?
Registered User
Joined: Jan 2003
Posts: 408
From: West Coast
I don't see how the 230/236 is mild compared to the 306? Are you just looking at the lift or what?
Comp XE 230/236 w/ 33xx lobes:
230/236 @0.050" lift and 282/288 @ 0.006" lift
Comp "306"
230/244 @0.050" lift and 290/308 (I think) @0.006" lift.
So, the 230/236 crams similar lift and duration into a smaller amount of total duration. In fact, the 230/236 is only a couple of degrees bigger in total duration than a LT4 Hot cam.
Because the 306 cam has the valves open longer, it can make more power at high RPM, but at the expense of low RPM torque to some extent.
The 230/236 has much less overlap, so it will idle smoother.
Mine still sounds mean, but not quite like some others I have heard.
BRAD
Registered User
Joined: Mar 2003
Posts: 652
Originally posted by llafro
The 230/236 is mild compared to the 306 because of the reduced advertised (0.006" lift) duration.
Comp XE 230/236 w/ 33xx lobes:
230/236 @0.050" lift and 282/288 @ 0.006" lift
Comp "306"
230/244 @0.050" lift and 290/308 (I think) @0.006" lift.
So, the 230/236 crams similar lift and duration into a smaller amount of total duration. In fact, the 230/236 is only a couple of degrees bigger in total duration than a LT4 Hot cam.
Because the 306 cam has the valves open longer, it can make more power at high RPM, but at the expense of low RPM torque to some extent.
The 230/236 has much less overlap, so it will idle smoother.
Mine still sounds mean, but not quite like some others I have heard.
BRAD
The 230/236 is mild compared to the 306 because of the reduced advertised (0.006" lift) duration.
Comp XE 230/236 w/ 33xx lobes:
230/236 @0.050" lift and 282/288 @ 0.006" lift
Comp "306"
230/244 @0.050" lift and 290/308 (I think) @0.006" lift.
So, the 230/236 crams similar lift and duration into a smaller amount of total duration. In fact, the 230/236 is only a couple of degrees bigger in total duration than a LT4 Hot cam.
Because the 306 cam has the valves open longer, it can make more power at high RPM, but at the expense of low RPM torque to some extent.
The 230/236 has much less overlap, so it will idle smoother.
Mine still sounds mean, but not quite like some others I have heard.
BRAD
Registered User
Joined: Apr 2000
Posts: 708
From: St. Louis, MO
I'm just echoing a few thoughts here.
I originally ordered a custom XE 230/236 with a 111 lobe (to have it lope like a monster). I was toying with a 110 lobe, but the Comp Cam guys said it would probably have to idle around 1000-1200 rpm.
Generally the lower lobe seperation, the shorter the power band. But for every 2 degrees it goes down (like 114 to 112), you gain about 10 foot pounds of torque.
Anyway, the cam ended up coming way late, and I threw in a CC306 instead, then sold the XE when it came.
I originally ordered a custom XE 230/236 with a 111 lobe (to have it lope like a monster). I was toying with a 110 lobe, but the Comp Cam guys said it would probably have to idle around 1000-1200 rpm.
Generally the lower lobe seperation, the shorter the power band. But for every 2 degrees it goes down (like 114 to 112), you gain about 10 foot pounds of torque.
Anyway, the cam ended up coming way late, and I threw in a CC306 instead, then sold the XE when it came.
Registered User
Joined: Jan 2003
Posts: 408
From: West Coast
Thanks Brad, that makes sense the way you explained it. Question for you on your mod list? You appear to have a stock bottom end and your running LT1 ported heads,cam, etc with a big 58mm TB? Wouldn't a 52mm be a better match for your setup performance wise? I can understand room for growth, stroker, bigger heads, etc but seems it would be too much causing a negative effect. Just curious?
Registered User
Joined: Jul 2002
Posts: 187
From: Norcross, GA
i put down 381 with a hotcam(112 lsa) at 6100....a 110 lsa moves the power band up aprox. 500 not 300...it is a significant difference
...and if ur engine is not built to handle 6600 rpm, something is gonna happen. stick with a 112 lsa.
...and if ur engine is not built to handle 6600 rpm, something is gonna happen. stick with a 112 lsa.
Last edited by JohnsSS; Sep 18, 2003 at 05:30 PM.
Registered User
Joined: Feb 2002
Posts: 5,645
From: Bridgewater, MA
With homeported heads and SLp shorties I made 351rwhp @ 5900rpm/348rwtq @ 4800rpm with the XE230/236 114LSA. I now have lloyd's heads/longtubes/TB/MAF/EW. I am expecting to turn around 6100rpm peak power.
Texas Moderator (1998-2009)
Joined: Dec 1998
Posts: 1,301
From: DFdubya, Tx.
I'm running the 230/236 on a 110lsa. Not sure what the lobe series is, but it has .598/.608 lift w/ 1.6 rockers. With the stock lifters and CMotorsport 608 <- I think?! valvesprings, I could only rev to 6000. Switched valvesprings to something pretty crazy <- around 150 on the seat while open (thanks again Seth! 
) and a set of Comp R lifters. It'll rev to 6600 now, but falls off pretty sharp after that. I've been shifting at 6400rpms.
Even w/ this LSA, the cam still has plenty of low end pull ~ even w/ some "homeported" heads.
Check the graph if you need to
. click me
) and a set of Comp R lifters. It'll rev to 6600 now, but falls off pretty sharp after that. I've been shifting at 6400rpms. Even w/ this LSA, the cam still has plenty of low end pull ~ even w/ some "homeported" heads.
Check the graph if you need to
. click me 