What can I rev to NOW?
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I'm switching from my TR224 / 918's to TSP 233/239 and PP Gold duals.
Be here in about a week...
I was reving to 6600 with the 918's, what can I do now? I'll have to see the dyno sheet to know for sure what I can rev too power wise, but what about mechanically without worrying about float.
I have s2 heads, manly valves blah blah put down about 395 ish on the old setup with no ls6 intake.
Be here in about a week...
I was reving to 6600 with the 918's, what can I do now? I'll have to see the dyno sheet to know for sure what I can rev too power wise, but what about mechanically without worrying about float.
I have s2 heads, manly valves blah blah put down about 395 ish on the old setup with no ls6 intake.
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My rev limiter is set at 7k rpms with my 231/237 cam... I shift around 6700-6800 rpms since the cam seems to peak around 6200, give or a take a little. I'm gonna guess that your cam will be similar in where it peaks, maybe a tiny bit higher... I wouldn't want my engine to live at where my shift points are at on the stock bottom end, but I'm confortable with it on the occasional trip to the drag strip.
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Thanks for the opinion ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
You ran a 12.2 with that cam and a 12 bolt? I would expect better!... did something happen? (no offence ofcourse if it was a good run) I just would think the times would be better. With my 224 no 12 bolt and no intake or LTs I was running 12.7
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You ran a 12.2 with that cam and a 12 bolt? I would expect better!... did something happen? (no offence ofcourse if it was a good run) I just would think the times would be better. With my 224 no 12 bolt and no intake or LTs I was running 12.7
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Originally Posted by jermzz
Thanks for the opinion ![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
You ran a 12.2 with that cam and a 12 bolt? I would expect better!... did something happen? (no offence ofcourse if it was a good run) I just would think the times would be better. With my 224 no 12 bolt and no intake or LTs I was running 12.7
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
You ran a 12.2 with that cam and a 12 bolt? I would expect better!... did something happen? (no offence ofcourse if it was a good run) I just would think the times would be better. With my 224 no 12 bolt and no intake or LTs I was running 12.7
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
I ran a 12.6 full bolt-ons with no cam installed at all, and on a 10 bolt with 4.10 gears. Adding just the cam and the 12 bolt (which actually adds more weight, so it doesn't help) with the same exact gear ratio that I had in my 10 bolt dropped my times by over 4 tenths of a second.
The reasons for ET and trap speed being what they are:
1) stock clutch... couldn't launch at anything over 4k on the stocker, which bogs the engine at the line when using ET Streets... to really get a great launch and great ET, I really needed to launch at around 5500-6000 rpms, and the clutch literally wouldn't do it. I have a DVD of my runs that day, and you can also hear the clutch slipping badly on every upshift (RPMs hang big time), which also slowed me down.
2) I didn't powershift... I used to lift my foot from the accelerator on each upshift because I didn't want to trash my tranny. I'm having the transmission built up this off-season so I can powershift it this coming season and not have to worry about it breaking on me... no more lifting if I can at all help it.
3) I live in Seattle, and our air isn't great compared to a lot of places when talking about racing... the conditions are horrible by any means (we're not Denver or anything) but it certainly could be better.
4) I still have some room for improvement as a driver, I ain't gonna lie about that.
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I'm confident with launching at high rpms and with powershifting this car has the potential to easily drop into the high 11s, as long as I drive it well enough. High 11s is pretty much all I would expect from this car N/A on stock heads.
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just remember your valve springs arent usually the limiting factor in deciding how high you can rev.....its the rod bolts that usually take a **** from high revving
01-02 got better rod bolts IF yours is a 01-02 i would feel more comfortable with 6800-7000 although with 7000 you are living on the edge.....if you have a 98-00 i wouldnt go higher that 6800 although some do and live for a while to tell about it
just look at a dyno graph see where it peaks and choose a limiter based upon that, go a few hundred RPMS higher than peak power for example i peak at 6400 and limiter is 6800 i could use another 1-200 rpms but i dont want to replace my short block anytime soon,
hope i helped
01-02 got better rod bolts IF yours is a 01-02 i would feel more comfortable with 6800-7000 although with 7000 you are living on the edge.....if you have a 98-00 i wouldnt go higher that 6800 although some do and live for a while to tell about it
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hope i helped
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okay so about 6500 wouldl be decent on motor, im getting the same cam and springs. but what about on nitrous, i have an 02. if it peaks at 6200, i could shift spraying at 6250 prolly and get by right? maybe be running a 3.73 tho, dont wanna run outta gear so would like to go as high as ya'll think it will hold.
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Originally Posted by Caribe
I also got the TSP 233/239 with the PRC kit, so I emailed Jason at TSP and this is what he told me."It will peak about 6200-6300 so I would shift at 6500-6600" and the rev limiter between 6700-6900.
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Originally Posted by ZMC_Racing
hows that cam with the 3500 tci and 3.23's ??? or have u put in it yet? when u get it done let me know how it drives.
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Originally Posted by Nickn20
please get an LS6 intake, lol. Are you gonna put the cam in yourself? ![Grin](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_grin.gif)
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Originally Posted by greekss
what was our 60 foot jeremy when u hit the 12.7 ?
Tranzor_Z28: I get it, that's still a hell of a run. I will be going form 3.73's and nittos to 4.11's in a 12 bolt and ET streets, maybe that's why i'm expecting such a jump in time. Thanks for the clarification though.
Nick: Yes I bought an intake aswell, I figured it was time for one
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Alright well it sounds like I can just leave the rev limiter where it is. If the dyno says it can go a little higher, maybe i'll have it set to 7, and shift at 6800.
Last edited by jermzz; 01-11-2005 at 10:21 PM.
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BTW Costa, why do you have the Viper in YOUR sig? You don't see my sig with Mercedes SL500 Lorinser, or H1 Hummer. =p heh heh heh.
Actually, I went to the Mercedes dealership today with my parents. They drove the SL55 G-Wagon, I think they're gonna buy it. Man it hauls ***, its got almost 500 hp. lol
I took some pics of it and the SLR they had in the showroom, Check it out
Actually, I went to the Mercedes dealership today with my parents. They drove the SL55 G-Wagon, I think they're gonna buy it. Man it hauls ***, its got almost 500 hp. lol
I took some pics of it and the SLR they had in the showroom, Check it out