reverse split pros and cons?
I tried a reverse split cam didn't like it, then switched to straight split with better results. I think the LS1/LS6 really wakes up with a cam with more exhaust duration than intake. Look at the variety of cams out there for the LS1 and most are like this; in fact even the GM LS6 cams have more exhaust duration.
You only want a reverse if you have substantial exaust flow and your intake flow is hendering. I haven't really seen a use for one in LS-1/6 applications, but who knows, they might be useful to someone???
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It is my understanding that a reverse split will raise the peak torque and hp speed, raise peak power slightly, lower peak torque, and lower low end torque.
It is also intake/head/valvetrain/exhaust dependent. If you have a restrictive exhaust and a free flowing intake your result would be different than if you had a free flowing exhaust and a restrictive intake.
It is also intake/head/valvetrain/exhaust dependent. If you have a restrictive exhaust and a free flowing intake your result would be different than if you had a free flowing exhaust and a restrictive intake.
do some searches under my user name to see my results with the reverse split cams. If you don't find what you want, PM me an email addy and I'll mail you some graphs.
Short version... Reverse split sux.
Short version... Reverse split sux.
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Originally Posted by DavidNJ
It is my understanding that a reverse split will raise the peak torque and hp speed, raise peak power slightly, lower peak torque, and lower low end torque.
It is also intake/head/valvetrain/exhaust dependent. If you have a restrictive exhaust and a free flowing intake your result would be different than if you had a free flowing exhaust and a restrictive intake.
It is also intake/head/valvetrain/exhaust dependent. If you have a restrictive exhaust and a free flowing intake your result would be different than if you had a free flowing exhaust and a restrictive intake.
Personally, I believe I have the freest flowing exaust avalible, (TEA nitrous exaust port on heads, stepped kooks headers, into a 3" true dual X-set-up), and I still run a foward split cam. I really see no reason for them.
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From: BFE
Originally Posted by gomer
do some searches under my user name to see my results with the reverse split cams. If you don't find what you want, PM me an email addy and I'll mail you some graphs.
Short version... Reverse split sux.
Short version... Reverse split sux.
All we came to know is that his heads didn't like reverse splits.
X1 in he 10's with stage 2E's, my Stealth II (cam only) in the 10's with nitrous, 11.64 N/A,
So where does reverse split suck???
A comment like that is utter ignorance
Instead of such blame comments why don't you give examples of combos where different patterns work.
I'm sorry Gomer, but i think you are too wrapped up in dyno queen racing numbers.
A cam is chosen to complement a certain combo (intake/heads/exhaust). Not because of it's pattern.
Some people praise dual pattern cams, some praise reverse split and others like me can't make up their mind so they go traditional cam.
Some find great results with reverse as they claim the exhaust flows to god on an LS1 and the intake is the restriction.
Other claim the exhaust is always the restriction a dual pattern cam gives more power.
But I've seen 220/224 vs 224/220 and there pretty much identical all the way, but it seems the LS1 likes a split either way on the dyno and numbers seem to be a touch higher then normal cam, but what looks good on the dyno is not always as good on the road. Even if the 2 have curves identical, on the road it might be a little bit different.
Some find great results with reverse as they claim the exhaust flows to god on an LS1 and the intake is the restriction.
Other claim the exhaust is always the restriction a dual pattern cam gives more power.
But I've seen 220/224 vs 224/220 and there pretty much identical all the way, but it seems the LS1 likes a split either way on the dyno and numbers seem to be a touch higher then normal cam, but what looks good on the dyno is not always as good on the road. Even if the 2 have curves identical, on the road it might be a little bit different.
Originally Posted by gomer
do some searches under my user name to see my results with the reverse split cams. If you don't find what you want, PM me an email addy and I'll mail you some graphs.
Short version... Reverse split sux.
Short version... Reverse split sux.
Works pretty good in my car.
Bruce
I think what the people in here with revese splits are missing, is the performance you could have if you went traditional. I don't think you guys are looking at the whole picture. Sure the cam you have might make good power, but they have a 99.9% chance of performing better, mostly in the middle where it counts, with a traditional split. Like I said before, the reverse is only good for a better peak, over 5k, number.
Originally Posted by PREDATOR-Z
I'm sorry Gomer, but i think you are too wrapped up in dyno queen racing numbers.
A cam is chosen to complement a certain combo (intake/heads/exhaust). Not because of it's pattern.
A cam is chosen to complement a certain combo (intake/heads/exhaust). Not because of it's pattern.
Off topic, but that graph shows how awesome of a cam the 224/224 is. The 224/224 114 is hanging right with the 230/224 111 until 5500+ rpm, and is probably 10x more driveable, idles 10x better, etc. It looks like (finally) more and more people are beginning to understand that small cams and packages that actually work together will ALWAYS work better than putting the biggest cam with the biggest (peak) flowing heads.
Shawn
Shawn
Originally Posted by SPANKY LS1
Off topic, but that graph shows how awesome of a cam the 224/224 is. The 224/224 114 is hanging right with the 230/224 111 until 5500+ rpm, and is probably 10x more driveable, idles 10x better, etc. It looks like (finally) more and more people are beginning to understand that small cams and packages that actually work together will ALWAYS work better than putting the biggest cam with the biggest (peak) flowing heads.
Shawn
Shawn
Originally Posted by SportSide 5.3
hmm, and why would this be?