reverse split cam???
Thread Starter
Staging Lane
Joined: Sep 2003
Posts: 81
Likes: 0
reverse split cam??? hey maybe everyone here can help me out a little..i want to know what the advantage is of the reverse split cam..is there an advantage with that cam versus other cams?? i am looking at the thunder racing reverse split cam on the 111 lsa and i want to know if anyone else has that and if it a streetable cam?? i got stock heads and im getting longtubes so anyone know what type of numbers i might ecpect from that cam?? thanks a lot
Jared
Jared
Teching In
Joined: May 2004
Posts: 26
Likes: 0
From: LI, NY
I am a chevrolet tech and I installed the tr227/224 .562/.562 112ls reverse split cam in a 98ss along with tpis ported ls6 heads ls6 intake, kooks long tube headers, catless y pipe, m6 and 4.10's out back. The cam had a fairly lopey idle but was very streetable. easy 11 second car on the test drive.
Thread Starter
Staging Lane
Joined: Sep 2003
Posts: 81
Likes: 0
thanks for the info..i have a 98 SS and the mods i have right now are a lid, smooth air bellow, descreened MAF, loudmouth exhaust, Pro-5.0 shifter, eibach sportlines, BMR subframs, and 4.10 gears and i am going to put kooks LT on it vbery soon also so i might end up going with that cam that you installed..i want somthing that has a loapy idle and puts down good numbers but is also very streetable..if anyone else has any suggestions on which cam to go with let me know..im running stock heads for now so keep that in mind..thnaks a lot
Jared
Jared
Teching In
Joined: May 2004
Posts: 26
Likes: 0
From: LI, NY
I personally think that cam may be a little overkill for stock heads. Don't forget the valvesprings. The heads I installed on that car had some pretty hefty double springs with titanium retainers. You will probably have to remove the heads to have the spring seats machined for double springs. Might as well save some more dough up for port work since the heads will be off anyway. That is if you wanted to go will that size cam of course.
The only reason I can see getting a reverse split cam is in the situation that you want better driveability than other cams. You have to keep in mind that your low-end power will be the same as a 224/224. You'll gain above 5000 rpms, but that's about it. If your going to have any restrictions, such as stock heads, cats, or any other variance, I wouldn't do a reverse split under hardly any circumstances, but that's just me. I always try to keep mine foward split. Anywhere from 2-6 degrees. I would talk with Allan at Futral Motorsports over here---------->
One of his FM11 or FM13's would make a great bump stick for stock heads and ported.
One of his FM11 or FM13's would make a great bump stick for stock heads and ported.
Originally Posted by 84z28ls1
I personally think that cam may be a little overkill for stock heads. Don't forget the valvesprings. The heads I installed on that car had some pretty hefty double springs with titanium retainers. You will probably have to remove the heads to have the spring seats machined for double springs. Might as well save some more dough up for port work since the heads will be off anyway. That is if you wanted to go will that size cam of course.
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Originally Posted by 84z28ls1
I personally think that cam may be a little overkill for stock heads. Don't forget the valvesprings. The heads I installed on that car had some pretty hefty double springs with titanium retainers. You will probably have to remove the heads to have the spring seats machined for double springs. Might as well save some more dough up for port work since the heads will be off anyway. That is if you wanted to go will that size cam of course.
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Jared,
I've got a TR230/224 reverse split. After tuning, it is very streetable with 4.10 gears. It's not my daily driver, but in good weather I drive it to work (90 mile round trip) 2-3 times a week. I'm running stock ls6 heads, flp headers without cats, no weight reduction and I'm trapping 115mph. The 12.4 in my signature is because I can't launch worth a crap on nittos at milan dragway. I've got some real tires on the way and should dip into the 11's next week.
If you want good performance, a lopey idle, and decent street manners, I like my TR230. I drove it ~6 months without a tune and I sometimes needed to feather the throttle to keep it from stalling. Now it doesn't give me any problems.
-Dan
I've got a TR230/224 reverse split. After tuning, it is very streetable with 4.10 gears. It's not my daily driver, but in good weather I drive it to work (90 mile round trip) 2-3 times a week. I'm running stock ls6 heads, flp headers without cats, no weight reduction and I'm trapping 115mph. The 12.4 in my signature is because I can't launch worth a crap on nittos at milan dragway. I've got some real tires on the way and should dip into the 11's next week.
If you want good performance, a lopey idle, and decent street manners, I like my TR230. I drove it ~6 months without a tune and I sometimes needed to feather the throttle to keep it from stalling. Now it doesn't give me any problems.
-Dan
Murdock, why the low MPH? I'm not trying to bash what you have, but with LS-6 heads (stock), and a 230/230 or 230/232 I would assume you would trap around 120+. Kinda falls into what I said about the power band of these reverse cams earlier. Just something to look at.
Originally Posted by Beast96Z
Murdock, why the low MPH? I'm not trying to bash what you have, but with LS-6 heads (stock), and a 230/230 or 230/232 I would assume you would trap around 120+. Kinda falls into what I said about the power band of these reverse cams earlier. Just something to look at.
The TR230 is very streetable and give your exhaust a very aggressive tone.. Just check my sig or the other posts that I have in the external engine section..
Also.. don't worry about running these cams with stock heads..
my tr230 was a turd w/o tuning, barely would idle and lugged around town. and the cam really needs gears to suite the power band.
if your car is a daily driver i'd get the 224 112 over the 230. your only giving up ~10rwhp on the top end from the 224 to the 230 anyway.
if your car is a daily driver i'd get the 224 112 over the 230. your only giving up ~10rwhp on the top end from the 224 to the 230 anyway.
Originally Posted by 84z28ls1
sorry kinda new to ls1 thing, been working on 6.0L and 6.6L duramax trucks for the last five years
Originally Posted by jrp
if your car is a daily driver i'd get the 224 112 over the 230. your only giving up ~10rwhp on the top end from the 224 to the 230 anyway.
TECH Senior Member
Joined: Mar 2004
Posts: 14,620
Likes: 17
From: BFE
Here we go again,
Reverse splits are designed so the longer intake duration will compensate for the smaller intakes of stock heads (Less an issue with LS6 than LS1)
The trick is to have a small reverse split like 224/222 or 230/228 etc... combined with high lift, these cams make very decent power on stock heads. Also there is the lsa factor which is imprtant in deciding where in your powerband do you want that power to be applied. Also reverse cams in LSx motors, tend to like opposite lift splits, especialy if you wish to shoot less than 150 N20 shots.
Another consideration would be the overlap. For every degree of positive overlap you gain 2-3rwhp (But that means sacrificing idle quality).
Example:
cam 1> 228/226, .593/.594 117 lsa would make less HP than
cam 2> 228/226, .593/.594 112 lsa
cam one is -7 overlap and cam 2 is +3 overlap
Reverse splits are designed so the longer intake duration will compensate for the smaller intakes of stock heads (Less an issue with LS6 than LS1)
The trick is to have a small reverse split like 224/222 or 230/228 etc... combined with high lift, these cams make very decent power on stock heads. Also there is the lsa factor which is imprtant in deciding where in your powerband do you want that power to be applied. Also reverse cams in LSx motors, tend to like opposite lift splits, especialy if you wish to shoot less than 150 N20 shots.
Another consideration would be the overlap. For every degree of positive overlap you gain 2-3rwhp (But that means sacrificing idle quality).
Example:
cam 1> 228/226, .593/.594 117 lsa would make less HP than
cam 2> 228/226, .593/.594 112 lsa
cam one is -7 overlap and cam 2 is +3 overlap
The motor I am getting ready to install has a 228/224 cam in it, and has GTP Stage 2 heads. With all the bolt on's, this motor dyno'd 430rwhp and 401rwtq. In a full weight SS vert, 275 nittos with a soft 60ft, this combo netted a 12.2 at 118mph. Its now going in my ws6 with less weight(non vert and weight decrease) plus im adding 3" true duals, TSP lid, and an LSX
Originally Posted by PREDATOR-Z
Here we go again,
Reverse splits are designed so the longer intake duration will compensate for the smaller intakes of stock heads (Less an issue with LS6 than LS1)
The trick is to have a small reverse split like 224/222 or 230/228 etc... combined with high lift, these cams make very decent power on stock heads. Also there is the lsa factor which is imprtant in deciding where in your powerband do you want that power to be applied. Also reverse cams in LSx motors, tend to like opposite lift splits, especialy if you wish to shoot less than 150 N20 shots.
Another consideration would be the overlap. For every degree of positive overlap you gain 2-3rwhp (But that means sacrificing idle quality).
Example:
cam 1> 228/226, .593/.594 117 lsa would make less HP than
cam 2> 228/226, .593/.594 112 lsa
cam one is -7 overlap and cam 2 is +3 overlap
Reverse splits are designed so the longer intake duration will compensate for the smaller intakes of stock heads (Less an issue with LS6 than LS1)
The trick is to have a small reverse split like 224/222 or 230/228 etc... combined with high lift, these cams make very decent power on stock heads. Also there is the lsa factor which is imprtant in deciding where in your powerband do you want that power to be applied. Also reverse cams in LSx motors, tend to like opposite lift splits, especialy if you wish to shoot less than 150 N20 shots.
Another consideration would be the overlap. For every degree of positive overlap you gain 2-3rwhp (But that means sacrificing idle quality).
Example:
cam 1> 228/226, .593/.594 117 lsa would make less HP than
cam 2> 228/226, .593/.594 112 lsa
cam one is -7 overlap and cam 2 is +3 overlap
my tr230 is my everyday car , tuned with 4.10's and not one issue idels good doesnt stall, good power and still stock ls1 heads went time in sig mind you my launces arent what you would call good .
advantages over others? im not exactly sure . like others said its mainly in th top end but still give you good low end. you do however have to drive easy in first and second gear i found out lol
advantages over others? im not exactly sure . like others said its mainly in th top end but still give you good low end. you do however have to drive easy in first and second gear i found out lol