okls1

What rpm do you guys shift at? With F13, TR230, or MTI x1 or anything similar? I am trying to figure out if F13 be too big because I am scared to go over 6500 with stock bottom end . Dont want to run big cam if I am wasting it by shifting too soon. Thanks everyone

blkZ28spt

I would guess that an FM13 would work alright with a shift point at or below 6500. It's not all that big. If the search function works properly again search the dyno results and comparison forum, as well as this one, for graphs to see where the power is peaking.

You should be able to get away with a little more rpm than that with an '02.

You could always contact Futral, I am sure they will be more than happy to answer any questions you have and make a recommendation for your specific application.

okls1

Ok thanks will do. I plan on getting the 112 lsa too so that should help a little.

Ru2n00n3er

iTrader: (13)

I run the F13 on a 112 LSA. I don't have a dyno sheet with the current tune, so I'm not positive where it peaks now. On the original tune it peaked at 6500, and at 6600 with my cutout open. At the track I have my shift light set at 6500, so I probably shift it at 6600 rpm.

Z28/2002

iTrader: (27)

My A4 is tuned to shift at 6300. When I had it dyno'd Monday it was still pulling when it hit the 6700 RPM rev limiter.

okls1

OK thanks, Ru do you like the cam? Would you change it? Do you worry at all bout running at high rpms? So if it pulls up to 6700 wouldnt it be better to have a smaller cam where more of it is used Thanks guys keep it comin

00SSLS1

iTrader: (7)

I have mine at 6400

Griswold

iTrader: (5)

my shiftlight is set at 6400 with a tr230

FULTILT

My F13 on a 112+2 peaks at 455.3 rwhp at 6,300 rpm's but doesn't drop until 6,800 rpm's so I shift at 6,600 and rev limiter is set at 6,900 rpm's.

okls1

Maybe if I got the FM13 on 112+4 the power would come earlier so I could shift at 6500 without losing much or should I get a smaller cam because of the rpm I want to shift at?

UltraZLS1

iTrader: (13)

Sounds like my dilemma.
I know what your saying though. It would be good to shift right before it starts falling off so when you hit the next gear the cam is still in its sweet spot.

From what I gathered I think I am gonna go with the f11 112 +4. Have the shift light set at 6400....so I will probably be shifting at 6500 or so. Then have the limiter at 6600.

I will feel safe and confident with that. I got a 98 bottom end with 90k on it....so I REALLY dont want to go past 6500.

FstBlkz28

iTrader: (13)

I've got a TR230 ... I've got my shift light set at 6300 so i'm shifting at 6400-6500. I could go higher ... but for precautionary reasons I keep it at about 6500.

GuitsBoy

iTrader: (4)

Yeah, id shift at atleast 6400 with a 6600 redline. Try and get to 6500 if you can. The cam will still be making power if you short shift it by a couple hundred rpms. Itll still be fun.

Black98Z28

iTrader: (8)

my buddies car has his set to 7100rpm. the car rips!
with the F13

GTA91

iTrader: (14)

TR230 here with ported heads... shift light was at 6,600 but I raised it to 6,800... pulls like a **** and on the dyno it really wasn't losing much power at all above 6,500... I've got a stock bottom end plus ARP rod bolts.

AFTICA

iTrader: (8)

Not shifting above 6500 is the reason I went with a F11 instead of the F13. My F11 113+3 peaks at 6300.

After my extremely poor experience with Futral and what's happening with their cams right now ,I wouldn't even consider a Futral cam if I had it to do all over again.

If you want to stay under 6500 but use every bit of it , stay under 230 duration on the intake and keep the intake valve closing around 43 - 44* ABDC.

okls1

Hey guits would shifting the f13 at 6500 be too short? Im starting to think I should get a smaller cam so I use all of it instead of the F13 and short shiftiing it since this is my dd dont want to go crazy with the rpms but then again that will only be during racing so maybe only few times a week The tr230 and FM13 pretty close in power right? Still not sure. I appreciate the help everyone.

JakeY2KZ

iTrader: (9)

My cam is pretty similar with the cams mentioned above. I shift at 6600 and limiter is set at 6800. Car has 63k on it and still pulling strong.

GuitsBoy

iTrader: (4)

Make sure you get the 112 LSA +4 and 6500 shouldnt be too short. Dont forget this cam will be making more power than the smaller cams from just about 3000 on up, even if it dosnt peak till later. There's nothing saying that every shift has to be at 6500+ rpm. Youll have plenty of torque throughout a broad powerband. Unless your concerned with gas milage, slightly improved drivability and off idle and low end torque, I see no reason to go with the smaller cam. You dont race off-idle torque. Run the f-13 and shift where ever you feel comfortable. I mean, you could shift at 6000 rpm like you would on a stock cam and still be considerably faster than the stock cam.

Ru2n00n3er

iTrader: (13)

I love the cam. I'm still on stock gears and have no driveability issues with the car. I had the same concerns as you, didn't want to spin it to high, but I was debating a F13 or larger. I chose the F13 because I didn't want to spin it to X3 level, but I might consider that in the future.
Call Futral, if you're very concerned about shifting above 6500 talk to them about, see what they think you'll be giving up. Maybe they could custom grind a cam for you to keep the power down a bit more.