bad6as

iTrader: (17)

i got ya

gillbot

iTrader: (27)

I'm guessing my question got overlooked?

Beast96Z

iTrader: (21)

When you decrease the henderence in the intake, yes, it may be suitable to move towards the traditional side. However, the FAST is still a restriction, so how much you move depends on all things in the combo.

DrkPhx

iTrader: (15)

So True. Brian at Hi-Tech has been pushing reverse split cams for stock LS1 heads for years with good results. I ran a reverse split almost exactly with the specs above (but the exhaust was a XE lobe and intake was XER) and Patriot heads with less than stellar results. I immediately switched to a 232/232 .595 lift cam and picked up more power and torque across the board.

JRracing

iTrader: (35)

I had the TR230 for 1 year. It was the first cam I bought and I was very impressed. It dyno'd 390rwhp with ls6 int, flp lts and ewp and a pulley. Times below.

I can't help but to wonder what there TR236/230 would be like with some good heads.

I kinda wish I would have stuck with the TR230 for a few more years to get everything out of it that I could have. The car was tuned for running N/A. I only sprayed it with the 150 shot 1 night at the track and the slowest time was 10.99 on a bad shift. Out of 3 passes. Makes me wonder. LOL.

Slowhawk

iTrader: (12)

I ran the TR236/230 when they first came out in my Firehawk.I'm pretty sure the car put out 440hp.415tq with mild ported stock heads,FLP's threw a 12 bolt.Car ran great with the limited tuning software that was out then.

JRracing

iTrader: (35)

Dam impressive #'s slowhawk. Just think what that would be with todays aftermarket heads/90mm intake and great tuning. I bet 475rwhp would be possible.

PREDATOR-Z

Well you see that 's the trick, once you go hi flow ported heads and 90/90, themn you can benefit more from traditional splits.

I know this is not "breakthrough" tech, but what I'm trying to present, with todays tuning innovations (also SD tuning), we are capable of running much tighter LSA cams. 14* overlap on a 232 cam only with 41 EVO is gonna make a hell of a lot of trq below the curve. All this can be run with LS6 intake, stock heads, good exhaust, ported TB. Bottom line much cheaper with rivaling results to H/C trq.
Will work even better on LS6 headed cars (higher compression, better flow)

Also a lot of folks tend to dismiss reverse splits outright, thinking they are no good, because they are unnaware of what "below the curve" is really all about and just think "peak".

Smokin87TA

iTrader: (183)

PREDATOR-Z this sounds like a great cam and i am looking to possibly go this direction but possibly on a little bigger scale. Could you possibly throw some specs for a cam that would work with what i am doing. Help is very much appreciated and i am looking into swapping from my ms3 to a cam along these lines.

My setup will be basically a track only car. stock shortblock except rodbolts and will possibly flycut, ewp, drag alt, ls6 manifold, ported tb, ls6 heads with close to 11.5 to 12.1 comp. I shift at 7000 and have hp tuners also. I am looking for a cam that will give me great power bu not go to aftermarket heads or 90/90.

i would be interested in getting a custom ground cam along the specs you posted but maybe a little larger cam, I would get it dynod and post numbers. Thanks, Tim

JRracing

iTrader: (35)

I thought you might come back with that answer.

PREDATOR-Z

Something like 238/234, 605/.598 109-1 (109LSA and 110 ICL)

.050 VEs
9>IVO
49>IVC
45>EVO
9>EVC
108>ECL
18* Overlap

This with 2cc reliefs, 59cc heads, .040 gasket will net you 11.5:1 SCR and ~8.48 DCR

The reason i wouldn't go bigger than that is no point too much more lift on unported heads (not that big of a gain VS valvetrain instability)

I would run the lightest valvetrain you can put in with 918 springs.
Like (hollow valves, 918's, Tit. retainers, locks)
Again with LS6 intake, >>6300/6400 rpm peak, will carry and carry past that to neverland with a very flat peak. with proper gearing and suspension + hook this is a serious mid 10's setup (maybe less depending on car weight)

MNR-0

Interesting cam there PRED. My initial questions would be:

1. free flowing exhaust?
2. how much overlap do you need before the exhaust starts over-scavenging?
3. high RPM likes earlier EVO?
4. more overlap narrows the peak power band?

PREDATOR-Z

1-The more free flow the better (true dual a plus)
2-Well that would depend on type of header, Tri-Y with long primaries a plus, with the right collector (avoid unnecessary reversal)- (there is such things as header tuning )
3- No, high midrange TRQ likes earlier EVO. Higher IVC, coupled with equidistant (IVO/EVC) or intake biased IVO/EVC from TDC will tell how far the power is carried.
4- No, but depending on VEs more overlap can make cam "peaky". It is just a matter of "tweaking" the VEs.

Of course this is all relative to rest of combo (like to which degree it does what it does) and i'm talking here on 346 cubes (mainly LSx)

silverbandit0996

iTrader: (2)

all of this talk about reverse splits has started to sway my cam choice tward them. because im not even concerned with peak numbers just about whats down below the curve. torque is what gets the ladies and wins the races.

N4cer

iTrader: (11)

Torque at RPMs wins races. Don't kid yourself. It's great to make 500ft lbs, but if you can only hold it to 4500rpm, it doesn't do much good when the other guy is cranking out his 450ft lbs to 7k.

TXZ28LS1

iTrader: (5)

what type of heads would make perfect compliment with the reverse split cams?

PREDATOR-Z

5.3L 2.02 valved and 227cc PP 243 stage 1. (basicaly smaller runners that flow 28x>>>300 cfm on intake)

PREDATOR-Z

True in the first 5 words but from a dig, whowever holds the best average HP/weight throught the gears will win in the 1/4.

KurtRardin

iTrader: (11)

Now im a little confused. It sounds like i should be leaning more toward the 232/228 .595/.588 for my 98 Z. I am extra DD M6, LS6 intake, LTs, Catted Y borla Mouth. Im not trying to spin to 7000, more like 6300 or 6400.
Would the 228/232 .588/.595 110+4 be better for me, or should i get a new one in my plans like the 232/228, .595/.588 108-1 LSA (108LSA/109 ICL)?

PREDATOR-Z

To have a better comparison:
228/232, .588/.595 110+4
Or
232/228, .595/.588 110-1

Both have 10* overlap
The difference will be under the curve with the reverse carrying further "less peaky".

I would take the reverse on a cam only.