Generation III Internal Engine 1997-2006 LS1 | LS6
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View Poll Results: What is a safe RPM for a stock bottom end with aftermarket springs?
6300 RPMs
38
8.46%
6400 RPMs
25
5.57%
6500 RPMs
89
19.82%
6600 RPMs
44
9.80%
6700 RPMs
45
10.02%
6800 RPMs
118
26.28%
6900 RPMs
29
6.46%
7000+ RPMs
61
13.59%
Voters: 449. You may not vote on this poll

Safe RPMs on a stock bottom end with springs

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Old 11-11-2006, 09:09 PM
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I voted 7000+ w/ good springs i turn my car 6800 w/ com 918 springs
Old 11-12-2006, 01:05 AM
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I rap my '98 to 7000rpm and it hasn't broke..
Old 11-12-2006, 07:57 PM
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My rev limiter is set to 7000 and I hit it often with no problems so far. I have double valve springs and a big cam to match.
Old 11-12-2006, 09:01 PM
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What is the stock rev limiter set at?
Old 11-12-2006, 09:26 PM
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Originally Posted by Louie83
What is the stock rev limiter set at?
6200 for the LS1, 6600 for the LS6.
Old 11-13-2006, 07:50 AM
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Since we're talking about higher revving and the sort, here's a question from my own observations, how acurate are your tach's at higher speeds? I notice my '00 WS6 tach has two problems, (1) at higher rpm it's pretty well short of actual rpm (my limiter it at 6200, car bounces the limiter at an indicated 5900), and (2) the tach seems awful slow to respond when the car is shifted hard/quick. This is especially noted during the 1-2 upshift where 2nd is such a short gear and it seems like the tach is still playing 'catch up' by the time I run out of gear. Anyone esle have this issue or are we all using aftermarket tachs?
Old 11-13-2006, 08:03 AM
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When my engine was still a virgin I would launch at 6400rpm and power shift at 7000 rpm. But mine is a 2002 with better stock rod bolts but that was also with factory springs.
Old 11-13-2006, 08:12 PM
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Originally Posted by VTC_WS6
Since we're talking about higher revving and the sort, here's a question from my own observations, how acurate are your tach's at higher speeds? I notice my '00 WS6 tach has two problems, (1) at higher rpm it's pretty well short of actual rpm (my limiter it at 6200, car bounces the limiter at an indicated 5900), and (2) the tach seems awful slow to respond when the car is shifted hard/quick. This is especially noted during the 1-2 upshift where 2nd is such a short gear and it seems like the tach is still playing 'catch up' by the time I run out of gear. Anyone esle have this issue or are we all using aftermarket tachs?
With boltons and 4.10 gears, my 1-2 shift is off by 500 rpm, as in it hits the rev limiter at 5700 rpm. I'll be putting in a autometer tach shortly when my cam goes in, I don't want to be bouncing off a 7,000 rpm limiter all the time.
Old 12-11-2006, 08:25 PM
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my 98 has seen 7k many a time. once i get the bottom end built I think i'm setting the limiter at 7300 depends on if I swap the cam.
Old 12-13-2006, 01:10 AM
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just put my cam and pat gold duals in

in a 99

so i assume 6600 should be my limit?
Old 12-28-2006, 01:06 AM
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Originally Posted by FstBlkz28
In my '01 I've got my limiter set at 6800, but I have my shiftlight set at 6400. I know I could wind it out to 6800 (hell I have before), but why chance it, and the longer my engine stays bolted together and running ... the better
same here bro, if i miss a gear i got alil bit of room for the engine
Old 12-28-2006, 09:06 PM
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My car is a mid-late 2000 model . It has the 241 casting cylinder heads . My car did not come with a LS6 intake manifold { I doubt any 2000 came with one ??} - does this make a difference in what went into the shortblocks? Thinking Zo6 came out in 01 , it made the LS6 intake possible --> 01 cars have that + better rodbolts .. Hopefully the stronger rod bolts were used as early testing for GM, but I have doubts .
Old 01-01-2007, 06:19 PM
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7kcam only 921 springs...
Old 02-04-2007, 01:00 PM
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Digging up old thread... just installed an G5-X2 cam kit w/ 921's and new yella terra rockers.... set rev limiter at 7000 rpm... HP flat from 6600-6900 dips to 7k. I'll be shifting at 6900 at the drags... and 6200ish at HPDEs like normal.
Old 02-04-2007, 03:30 PM
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i have many buddies that spin to 6800 quite effortlessly with just 918's

i will be spinning mine to 7k and i was looking at rod bolts and it says $80 for ARP's....is that one bolt, or the set?
Old 02-06-2007, 08:56 PM
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shift light @6400 limiter @6500 on an 02' z28 with hotcam kit. it's my daily driver and ran 12.0 before gears, so i'm happy.
Old 02-06-2007, 10:31 PM
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I have a cam only 99'. My cam is the Torquer 2 with 918's and my rev limiter is set at 6800RPM and I shift at 6200 on the street and 6700 at the strip
Old 02-07-2007, 08:41 AM
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Originally Posted by multiplicityZ
i have many buddies that spin to 6800 quite effortlessly with just 918's

i will be spinning mine to 7k and i was looking at rod bolts and it says $80 for ARP's....is that one bolt, or the set?

It is for a set..but get the Katech bolts instead..a better bolt ..
Old 02-07-2007, 08:57 AM
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This is what happens to your motor when the stock rod bolts break ... ... Katech rod bolts are $153.60... which to me sounds like very inexpensive insurance compared to the cost of replacing the short block .. I am not saying that you can't rev to 7000 rpms or whatever you want to set your rev limiter too ... but sooner or later what is pictured above will happen .. so in the end the question comes down to how long do you want to roll the dice???..
Old 02-07-2007, 09:06 AM
  #100  
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I could be wrong, but I remember 'LS1Joe' of t56rebuilds.com saying that he rev'ed his stock bottom end H/C car to 7800 with stock rod-bolts and stock lifters...

So.... I dunno...


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