More RPMs Scotty!!!
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From: Gardnerville, NV.
More RPMs Scotty!!! I've got a stock bottom end with 60cc heads and an F14 cam. The motor loves to run to the rev limiter. What do I really need to do to make the motor safe at higher RPMs?
I also have stock rockers, but PRC Gold Dual springs.
I don't want to spin 8,000 RPM, but it would be nice to hit 6,800 or even 7,000 on occaision. Right now I've got the rev limiter set at 6,400.
Rod bolts???
Rockers???
I also have stock rockers, but PRC Gold Dual springs.
I don't want to spin 8,000 RPM, but it would be nice to hit 6,800 or even 7,000 on occaision. Right now I've got the rev limiter set at 6,400.
Rod bolts???
Rockers???
Rod bolts??? Katech
Rockers??? Harland Sharp rebuilds, or Yella Terra Ultra Lights (Budget depending)
I also saw your post in the other thread too...If you are planning to pull the heads, the caddy racing lifters would be good insurance for higher rpms.
Rockers??? Harland Sharp rebuilds, or Yella Terra Ultra Lights (Budget depending)
I also saw your post in the other thread too...If you are planning to pull the heads, the caddy racing lifters would be good insurance for higher rpms.
I'm running an F14 on 5.3 heads milled about .005" (60cc) So that's equivilant to 5.3 heads milled .035". I'm also running 2.02" intakes. I used a MLS .054" gasket. All said and done I have .100" intake clearance and .180" exhaust clearance. My pushrods are 7.450". Of course my valve train geometry is more like a 241 head milled .005"
If I take the heads off I will re-install with .040" Cometics and go for more compression.
If I take the heads off I will re-install with .040" Cometics and go for more compression.
I agree. But LS7 lifters will run all day at 7000 rpm for half the price of the Caddy lifters.
well your car is an 02' therefore it already has the upgraded rod bolts as opposed to the 98-00' cars......personally i would set your rev limiter at 7000 and shift at 6800 or wherever your power starts to drop off on the dyno graph.....rpms make are great but no need to rev that high if the cam doesn't make power up there.....but i figure the F-14 makes good power up to the 7000rpm range.
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Have my rev limiter set at 6900 rpm & Raptor shift light set to 6600 rpm. Revs so quick in first gear I've gotta concentrate to shift a little early before I touch the light or I'll hit limiter. AFR 8019 dual springs with YT "Ultralites" & stock lifters....Good Tune with 11.4 AFR, 14* after 6K, Torco & Meth injection for extra security. BTW, my name is Scotty
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From: Gardnerville, NV.
Well I was kidding about pulling the heads just to gain .014" of quench. At the time though I was just glad my pistons weren't kissing my valves. Looks like I will be pulling the valve covers off though...I'm getting into a polishing hobby.
So what's the skinny on the 02 rod bolts? I've heard some in here say a stock 02 is good to 7,000 and some say don't rev past 6,400.
And yeah, the F14 is just starting to sing at 6,400.
So what's the skinny on the 02 rod bolts? I've heard some in here say a stock 02 is good to 7,000 and some say don't rev past 6,400.
And yeah, the F14 is just starting to sing at 6,400.
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Verdad Gallardo The consensus around here seems to be ~ 6500 on '97 - '00 rod bolts and ~ 6800 on '01 up rod bolts. There are of course exceptions, as there is always the guy who shifts his '98 at 7200 all day long and has never had a problem. Those seem to be the numbers I see most often used any where near the word "reliably".
There are a lot of people running that thickness on their LS1/LS6 engines & spinning them that high in this forum. Yes, .032 - .035 is pretty tight, but it is one of the keys to running high compression without detonation. It promotes better 'squish' in the combustion chamber, for a more complete & active burn.
There are a lot of people running that thickness on their LS1/LS6 engines & spinning them that high in this forum. Yes, .032 - .035 is pretty tight, but it is one of the keys to running high compression without detonation. It promotes better 'squish' in the combustion chamber, for a more complete & active burn.
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From: Gardnerville, NV.
I shifted my stock 99 bottom end at 6800 tons of times over a 2 year period. Yours may hold up and it may not. Rod bolts would be cheap insurance if you want to turn it that high. Are they necessary? No.
The 2002's came with the same rod bolts as the Z06 did. Spinning to 6800 is only 200 rpm higher than the stock z06 limiter. I spin my 02 to 6800 and have the rev limit at 7K.
If you find yoruself under the motor with the pan out, or at least the K member, swap in some ARP or Katech bolts for added piece of mind.
If you find yoruself under the motor with the pan out, or at least the K member, swap in some ARP or Katech bolts for added piece of mind.
6,800rpms 