KB99WS6

iTrader: (6)

Just curious b/c when ever I get into a serious race (which is very rare for the record) I am always hitting the damn rev limiter at least once. basically it jiust feels like there car is running out of gas, but I want to know if it messes things up...

btw it set at the stock setting

baddogz28

iTrader: (6)

WTF, maybe you should shift sooner....

Hitting the fuel cutoff at that kind of RPM can't be good.


When I race, I NEVER hit the limiter.

KB99WS6

iTrader: (6)

If you never hit the rev limiter on the stock tune than man, you don't want to race me. maybe thats why I usually beat cars that should beat me, b/c if i am in it, I am in it to win it

unless of course, you have no less than perfect timing...

Cal

iTrader: (1)

Get a shift light and set it for 200 rpm below the rev limit. Hitting the rev limit isn't that bad, but it's better not to hit it because you are creating a lean condition when you do.

davered00ss

iTrader: (4)

YUP.

Mike98WS6

iTrader: (5)

I've hit the dopey rev limiter plenty of times. Mine's set a 6,800, my car pulls all the way up there. Maybe that's why I hit it. Now if you mechanically over rev it. That's a big no no.

KB99WS6

iTrader: (6)

don't you have a TR224? I am surprised your rev limiter is set so high...and your still pegging it? What is the stock rev limiter set at?

Whats the difference between mechaincally over-revving it and hitting the rev limiter. I don't see how you can mechaincally over-rev it...thats what the rev limiter is for... ??

blackbird007

iTrader: (1)

I think what he means by mechanical over-rev is for instance when your racing and you miss the 3-4 shift and go into second, even though you have your revlimiter set the engine is mechanically forced to over-rev. Thats the easiest way I can think to explain it, correct me if i'm wrong.

VaNDaL*SS*

iTrader: (1)

stocker is just about 6k i believe..also if u hit the rev limiter alot u can bend a pushrod from my understanding

Cal

iTrader: (1)

Stock rev limit = 6200 rpm. A TR224 on a 114 LSA peaks a lot lower than 6800 rpm, but it has such a flat curve that it's not down too far at 6800 either. You shift past peak power so that when the rpm drops in the next gear, it doesn't drop out of the power band.

If you rev to the limit in third, then shift to 2nd instead of 4th, you will mechanically force the engine past the fuel cutoff; goodbye pushrods (and maybe a few pistons and valves.)

KB99WS6

iTrader: (6)

oh, ok, I got it now. No I have never done any of that, just overrevving the current gear.

KB99WS6

iTrader: (6)

What about a TR224 on a 112lsa? thats what I bought...

Cal

iTrader: (1)

That one will be a bit more peaky, not quite as flat, and peak 200 rpm or so lower. You really need to dyno you car to find out for sure because it depends on the whole package somewhat. Since you have this cam, you should raise your rev limiter to around 6700 rpm, IMO.

Ryan02SS

iTrader: (3)

My TR224 112LSA peaks at 6050 rpms and holds flat to 6500rpms. My rev limiter is set at 6800 rpms. At that rpm it drops to 400rwhp from 416rwhp.

BlackCamaroSS02

iTrader: (8)

I missed the 3-4 shift once and put it into 2nd . I pulled over right after and let the car idle for 30 sec then shut it off and poped the hood to let it cool...i bet it looked pretty cool though when i did it cause the tires started smoking in the back from it breaking loose lol

KB99WS6

iTrader: (6)

so why would you set the rev limiter at 6800 is the cam peaks at 6050?? I would think th stock setting of 6200 would be best, no? I don't completely understand what happens with the shift so i may be off base...but my thinking is that if the cams peak powerband is 6050 than why not set the limiter at 6200 and shift at like 6100??

Cal

iTrader: (1)

He said his cam peaked at 6050 but was only down 16 hp at 6800, so he would probably shift at 6600 to stay as centered in the powerband as possible. When you shift to the next higher gear, you lose a lot of rpm. You want the engine to be putting out the highest average hp as you go through the gears, which means each gear will start below peak power and end above it. I think you need the rev limit more than 100 rpm higher than where you're going to shift; I'd say at least 200 rpm, unless you shift a lot more acurately than I do! Also, the bigger cams rev faster, making harder to hit a certain rpm.

SStheBest

iTrader: (2)

unless u can be that quick on ur shift...i dunno how well of a driver u are......setting it at 6800 is alittle high BUT setting at 6200 is low...id say 6400 simply b/c say u shift at 6300 u fall right back at the highest band of the cam......

Phil'sC5vette

iTrader: (4)

I have the TR224 on an LSA 1114, and it peeked right around 5900-6100 PRM. I had ECS in NJ install it. If they pumped the range they did it to 6300. The only reason I think they maybe have bumped it up to 6300 is because that's when the car gets shut down on the dyno sheet.

With the TR244 on a 114, you really dont need to bump the rev limiter. Doing it is a waste because you power is under the 6200 RPM.

If you had a larger cam, then Id say bump it up

M6HuggerSS

because when your racing, its ideal that when you upshift you want to go from, peak hp then to peak TQ.... so if he shifts at 6K he may be as low as 3500, where he may need to be a 4500 for peak TQ....

pulling that extra, 600rpm on the top end puts him at a stronger rpm when he goes to the next gear......