View Poll Results: Which rpm to shift at on a 99 stock bottom end
6400 rpm
44
15.02%
6500 rpm
80
27.30%
6600 rpm
38
12.97%
6700 rpm
29
9.90%
6800 rpm
102
34.81%
Voters: 293. You may not vote on this poll
how high would you spin a stock shortblock poll
#41
TECH Fanatic
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i voted 6800. Reasons being I ran my 98 stock short block with 125k+ 7k everytime down the strip and drove it to school for 15k after cam install still with no problems.
Keep good oil in it, change if a little more often. AND DONT WORRY ABOUT IT!
Also, I can't see the stock bearing being the weak point... When I had stock long block and ARP's and i reved that 7k+ several times daily... for a long time... and my new motor is a stock 6.0L short block with different bearings, balanced with ARP pro's... For now its reved to 7300... but after my trans is built and the tune is done, I am looking to shift about 7500 to 7600...
thats my .02
Keep good oil in it, change if a little more often. AND DONT WORRY ABOUT IT!
Also, I can't see the stock bearing being the weak point... When I had stock long block and ARP's and i reved that 7k+ several times daily... for a long time... and my new motor is a stock 6.0L short block with different bearings, balanced with ARP pro's... For now its reved to 7300... but after my trans is built and the tune is done, I am looking to shift about 7500 to 7600...
thats my .02
Last edited by BES Stroked Nova; 04-14-2008 at 12:03 PM.
#42
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600 labor my god thats insane...it took a whole hour to drop my k member and an hour to do the bolts and bearings...bout the same going back....an engine support and a lift are a must though...but any big shop otta have all that...godamn 600 bucks...
I would definatly have them installed though but not at that price..
I would definatly have them installed though but not at that price..
#43
10 Second Club
iTrader: (74)
I would just save up the money for a short block and not worry about it. That is what I am doing. Some are going to scatter earlier than others. No one knows which one you have, but like was said before it is a risk that almost everyone here takes when they start trying to go fast. 750 would be a large chunk out of a forged short block.
#45
11 Second Club
Thread Starter
I've heard the stock crank is not a weak point and good up to a 1000 HP or something like that. The most my car will ever see is around 600 to the wheels on spray. I was figuring on a $3000ish 347 SB build from LME when the time comes. It would just need to handle 450 rwhp, 150 shot of N20 and a 7000 rpm redline.
#46
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bank the $750 for a shortblock and just spin it to 6400, then when you got enough for a rebuild, raise it to 6800 and really run it hard.
but if you do rod bolts, get new bearing too since they are right there!
but if you do rod bolts, get new bearing too since they are right there!
#48
Banned
iTrader: (115)
I've heard the stock crank is not a weak point and good up to a 1000 HP or something like that. The most my car will ever see is around 600 to the wheels on spray. I was figuring on a $3000ish 347 SB build from LME when the time comes. It would just need to handle 450 rwhp, 150 shot of N20 and a 7000 rpm redline.
Last edited by 99blancoSS; 04-16-2008 at 04:11 PM.
#49
TECH Junkie
iTrader: (4)
i say 6800+. if you're so afraid of blowing it up, leave it stock until you can afford a solid bottom end. take some responsibility, this thread has done nothing but confuse anyone who reads it with regard to stock bottom end strength. man up and blow it up. there's only one way to find the limit.
#51
11 Second Club
Thread Starter
i say 6800+. if you're so afraid of blowing it up, leave it stock until you can afford a solid bottom end. take some responsibility, this thread has done nothing but confuse anyone who reads it with regard to stock bottom end strength. man up and blow it up. there's only one way to find the limit.
If you don't like the thread then kindly
#54
11 Second Club
Thread Starter
Lets say this setup makes 450 rwhp @ 6600 rpm's and holds steady till 7100 before starting to drop off. If I shift at 6400 rpm's would I be leaving power on the table? Of course. But I would still be making better power then say a TR224. I would still have the "right" cam when I do get the forged shortblock. I would still enjoy a relatively fast car while I save for the shortblock. Plenty of common sense there. But if I can get away with 6500, 6600 or whatever then it's even better. Hence this poll.
Getting the stock shortblock to last 2 seasons is my goal. I am looking for input on what rpm shiftpoint will best suit my goal without being too extreme or too conservitive. What I don't need is someone like you in the thread contributing absolutely nothing other then stirring the pot and trying to **** me off.
Lets kindly leave it at that.
#55
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iTrader: (4)
I am looking for input on what rpm shiftpoint will best suit my goal without being too extreme or too conservitive. What I don't need is someone like you in the thread contributing absolutely nothing other then stirring the pot and trying to **** me off.
Lets kindly leave it at that.
Lets kindly leave it at that.
wake up man, for every donkey dick cammed car shifting @ 7k there are 5 that spun a bearing idling in the driveway.
#56
11 Second Club
Thread Starter
I hit the track 2-3 times a month. I'll make about 5 passes per track visit. My season here in NY is may-september. So we got 5 months of 15 passes per month = 75. Now I'll pad an extra 25 passes just to be safe and say 100 passes per season or 200 over two seasons. Which I ALL READY SAID PREVIOUSLY.
i'm not trying to be a dick, i just don't want to see you posting up in august with the "well it blew up" thread and then ranting about how everyone else is spinning their stock **** to the moon and back. $350 will get you a *new cam. don't tell me you can't save that much over the course of the next 2 years in an effort to save your stock short.
You are not contributing anything useful even though you think you are. And you definately are coming off as a dick even if you don't mean to.
Now just let it go.
#58
Goes Back To The Basics .. You Gotta Pay To Play, You Will Never Escape This Fact
I Spin To 6800 And Spray A 150rwhp Shot On My Donky Dicked 4000 Stalled Stock Short Block But Hell The Sooner I Blow It Up The Sooner I Build A 408 So Im Fine With The Fact That It Might Not Last Forever...(although It Seems To Be Holding Up Fine)
This All Being Said I Wouldent Even Reuse A Cam After A Engine Faiure, Cams Are Cheep And Theres Always Better Ones Comming Out... Buy A Cam For Today And Get A New One With A New Motor...
And If You Cant Afford This Then You Probally Shouldent Be Raceing
I Spin To 6800 And Spray A 150rwhp Shot On My Donky Dicked 4000 Stalled Stock Short Block But Hell The Sooner I Blow It Up The Sooner I Build A 408 So Im Fine With The Fact That It Might Not Last Forever...(although It Seems To Be Holding Up Fine)
This All Being Said I Wouldent Even Reuse A Cam After A Engine Faiure, Cams Are Cheep And Theres Always Better Ones Comming Out... Buy A Cam For Today And Get A New One With A New Motor...
And If You Cant Afford This Then You Probally Shouldent Be Raceing
#59
11 Second Club
Thread Starter
If not then I'll have Mike @ New Era inspect the heads and cam from the blown motor, make an evaluation and go from there.
I just spent 10K cash on top of the previous 3K in prior mods. I would hope that gives me the right to be racing
#60
11 Second Club
iTrader: (13)
With my stock short block I spun it all the way to 7200rpm no bullshit
I shifted at 6900rpm with no problem at all with 86k miles I say see what is the best shift point for you from beak power at the dyno
I didnt dyno mine but the car feels faster and wants more RPM Even with 3.42
when I shifted at 6500-6600rpm I noticed a big diffrence.
I shifted at 6900rpm with no problem at all with 86k miles I say see what is the best shift point for you from beak power at the dyno
I didnt dyno mine but the car feels faster and wants more RPM Even with 3.42
when I shifted at 6500-6600rpm I noticed a big diffrence.