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| Matatk | Camshaft opinions | ||
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I think I decided on a camshaft. Give me your opinions. Eventual mods will be:
Ported intake, ported plenum, SLP runners LT headers and magnaflowcatback GMPP 1.6 rr rebuilt 113s with bigger manley valves I was originally looking at the zz9, but I was afraid the lift w/1.6 rrs would be too much. Found this comp cams grind with numbers that seem to suit me well. http://www.compcams.com/Cam_Specs/CamDetails.aspx?csid=212&sb=2 Comp 08-302-8 210/220 .480/.480 .510/.510 112 lsa RPM range 1200-5200 Comments? Matthew |
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Posted on: 2009/5/7 22:39
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| dan0617 | Re: Camshaft opinions | ||
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IMO that cam will be perfect for the setup you listed.
You can buy a used LT1 catback (or axle back) for cheap, have the same performance as the magnaflow, have less resonance, and they are stainless so they will last forever. May also be cheaper and better performance to go to a good aftermarket 180CC head than to rework and rebuild your 113's. Although it is a nice feeling to pull tons of power through the stock block and stock head castings. Either way, with that cam and mods you are making, you will have an awesome torque curve and tons of that good old "seat of the pants" acceleration. Not sure if you are a stick or auto but a good 2000 or 2200 stall converter would really wake that setup up too. PS: Love your avatar |
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Posted on: 2009/5/8 14:05
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ยด89 Vert, 383, 230/236 cam, AFR 195's, LT Headers, HSR intake, 2800 stall, Zex 200 shot, ET Street Radials, tune by me. Runs were with D36 3.07's. On spray, 10.55 @ 132.78, 1.55 60 ft. On motor, 12.08 @ 113.15, 1.66 60 ft. |
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| CFI-EFI | Re: Camshaft opinions | ||
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I know of a good used ZZ9 if you decide to go that route. RACE ON!!! |
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Posted on: 2009/5/8 14:22
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| Matatk | Re: Camshaft opinions | ||
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Thanks for the comments. I forgot to mention I already have those components (minus cam) sitting in my garage. Magnaflow is already on the car now.
It's an auto, I plan on bumping the stall next year if I can. Matthew CFI - thanks, but I think the milder lift would suit me well. |
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Posted on: 2009/5/8 15:54
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Josh | Re: Camshaft opinions | ||
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I like the hotcam with 1.5 rockers for your application.
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Posted on: 2009/5/8 17:00
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"Have ya paid your dues, Jack?" "Yessir, the check is in the mail." - Jack Burton |
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| Matatk | Re: Camshaft opinions | ||
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Any reasons? The hotcam is advertised as a 1800-5800 rpm cam. My tpi won't rev that high even with the mods and it starts the power band later. And why with 1.5s? Lift is only .525 with 1.6s. Plus I already own brand new GMPP 1.6 rrs Matthew |
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Posted on: 2009/5/9 0:15
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| BeachBum | Re: Camshaft opinions | ||
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Master Guru
 
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I ran the LPE 211 cam with a motor set-up similar to yours for a couple of years.....with that set-up, I got it down to 12.42 @ 108 mph with junk cylinder heads and a fairly tight converter.
I'm going out of memory, but I think it was: 211/219 @ .050" 503/525 w/ 1.5's (536/560 with 1.6's) LPE had advertised the cam was designed for a long tubed TPI motor. They sold it on their 383 long accell tube runnered crate motor in which they advertised 395 HP @ 450 ftlbs of torque) As a matter of reference, they had the same motor with the popular 219 cam and the Superram advertised at 440 HP and 480 ftlbs. But, just from casually observing racers over the years, I have seen some good times out of the TPIS ZZ9 cam as well, thus, I think that might be a good choice. good luck ! |
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Posted on: 2009/5/9 3:58
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| Josh | Re: Camshaft opinions | ||
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With the stock 113 heads you won't be able to run .525 lift, it will push the valve retainers into the valve guide. That is why I like it with 1.5 rockers, it should clear the stock valve guides that way.
I think your motor will pull to 5300-5500 or so with the ported stuff, so the hotcam is probably what I would do in your shoes. My car, with all the stock intake stuff, made peak power at about 4200; but it was within 2-3 RWHP of peak all the way to 4700. I got the best times shifting it at 5000-5200 at the drag strip. I really don't see why you wouldn't pick up another 500 RPM's of power with the intake mods you suggested. I also like the 10 degree split in duration between the intake and exhaust. It seems to make the engine respond really well to nitrous, which is something I'm into. That's just me though, your results may vary. |
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Posted on: 2009/5/10 2:56
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"Have ya paid your dues, Jack?" "Yessir, the check is in the mail." - Jack Burton |
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| Matatk | Re: Camshaft opinions | ||
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Ok, thanks for the clarification!
Matthew |
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Posted on: 2009/5/10 11:50
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| pr0zac | Re: Camshaft opinions | ||
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i had the lpe 216.. 213/218 with .495/.502 on a 112 in my lt4. those lift numbers are with 1.6 rockers.
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Posted on: 2009/5/11 15:44
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96 lt4. 357ci, 11:1, LE 226/232, LE2 LT4 heads, ported LT4 intake, EM Gladiator44, EM LT's, stock exhaust, NX kit. |
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| klkordzi | Re: Camshaft opinions | ||
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If you go to Comp Cams website you can download a free program that allows you enter in various bits of information and it will suggest several cams for you. Have you looked at their fuel injected cams?
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Posted on: 2009/5/12 0:09
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| pr0zac | Re: Camshaft opinions | ||
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you could try elliottsportworks.com and get a custom cam
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Posted on: 2009/5/12 1:05
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96 lt4. 357ci, 11:1, LE 226/232, LE2 LT4 heads, ported LT4 intake, EM Gladiator44, EM LT's, stock exhaust, NX kit. |
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| Matatk | Re: Camshaft opinions | ||
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I didn't DL the program, but I did use the "contact us" link and sent them all the info for them to suggest me something. Still haven't heard back yet. Matthew |
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Posted on: 2009/5/12 1:08
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Matatk | Re: Camshaft opinions | ||
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It was my understanding he mainly deals with LT1/LT4 stuff? Plus, I can get the CC on ebay at a good price or even used. Cost is always a concern on a budget build. Thanks for the input. Matthew |
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Posted on: 2009/5/12 1:09
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| pr0zac | Re: Camshaft opinions | ||
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Elite Guru
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he does everything.
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Posted on: 2009/5/12 2:15
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96 lt4. 357ci, 11:1, LE 226/232, LE2 LT4 heads, ported LT4 intake, EM Gladiator44, EM LT's, stock exhaust, NX kit. |
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| 89Vette | Re: Camshaft opinions | ||
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Are you going to port the heads? Or just put bigger valves in them? Also, I thought new springs could be setup to allow more lift. Lloyd had sent flow #'s for 113s that went all the way up to .700". He didn't specify a limit for cam lift -- but we had been talking about .544".
Lloyd ports L98 heads along with LTx stuff. Pretty decent price and flow too. The CC program for picking a camshaft will ONLY show you XFI cams for a computer controlled motor. And, they lift in the .570 range. (for 210 or 218 duration). They really like to promote that new line because of the profile. The other thing I've heard is that LT runners can benefit from single-pattern or even reverse-split cams. Giving those tubes a bit more time to "inhale" those reversion waves helps. But, it's hard to make a suggestion based on bigger valves only. Lloyd might be a good direction for you to go. Gregg |
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Posted on: 2009/5/13 17:32
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383 stroker -- Semi-Siamesed SLP long-runner intake, AFR 195's, 4-2-1 headers, and a SR cam. ZF6 short-throw shifter. Custom body/interior. |
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| Matatk | Re: Camshaft opinions | ||
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The heads will more than likely be cleaned up by me, but not ported. I will have them rebuilt at a shop with the manley valves and higher lift springs based on my cam selection. I can't go too high with lift because I am concerned with valvetrain geometry.
No offense, by Lloyd is too expensive for me. I'd just go the extra $300 and slap some AFRs on there if I wanted to spend what Lloyd charges for heads. I'll be spending around $300 total. This is a home/budget build for a street cruiser, not a race car. Matthew |
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Posted on: 2009/5/14 1:52
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| BeachBum | Re: Camshaft opinions | ||
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Master Guru
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I know LPE sold hundreds of the Ported D-ports on 350 & 383 applications with the LPE 219 cam which had .560 lift with 1.6's. Just food for thought.
I'd recommend you try to find budget to get out of the long tube runners. I know its hard for a lot of people, especially in these hard times considering the cost of the HSR, SR or MR, but those long tubes will really hinder your potential power. Plus, you can probably sell your ported intake and plenum with the SLP runners and get 1/2 the money for a new intake right there. good luck ! |
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Posted on: 2009/5/14 2:15
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863 cubic inches of C4 & C6 muscle C6 Corvette Z06 - Lemans Metallic Blue C4 Corvette 436 - Pure Black http://www.cardomain.com/ride/3933547 ... chevrolet-corvette/page-1 |
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| Matatk | Re: Camshaft opinions | ||
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Any idea what type of work was done on the valve guides, etc? As far as the LTRs, those are staying. That's what I want. That's what I like. As I stated before, I don't drag race. This is not a race car. I drive to work and I drive home, and I go out on the weekend and get ice cream. That's it. I don't want a motor that turns 6000 rpms. What's wrong with that? Just because you drag race and that works for you, that doesn't mean it works for me. Thanks for the comments. Matthew |
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Posted on: 2009/5/14 2:26
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| BeachBum | Re: Camshaft opinions | ||
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Master Guru
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On the D-ports, I don't know, I never owned a set, but they were very common a few years back.... LPE might still sell them, I don't even know, a call to them will probably reveal what you want to know. On your LTR, fine by me, I was just making a suggestion.... feel free to ignore it. |
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Posted on: 2009/5/14 2:33
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