|08-19-2010 07:56 PM|
|turbolover||That last cam on a 110 will work fine for that range. Peak tq will be aroun 4000-4500 but it'll be pretty flat from idle to redline. A nice pulling combo.|
|08-19-2010 05:12 PM|
this will never see anything above 5000 rpm, due to balance problems, and, even with it balanced it'll sling apart.
I want my power band starting around 1000 rpm, so everything'll be down low.
what do I need to do to the cam to get that?
|08-19-2010 06:11 AM|
|turbolover||With those small seat durations 110º LSA would work very well. The biggest reason to run a wide LSA is to minimize overlap so you don't have your intake charge leaving through your exhaust before it is compressed. That cam wil have less overlap with a 110 LSA than many stock cams- meaning it'll idle close to stock but have much more mid-range power.|
|08-18-2010 11:05 PM|
|QParker||what would be better? 111?110?|
|08-18-2010 09:43 PM|
|turbolover||That's much better. Lsa is a little wide for that small of duration but its pretty good.|
|08-18-2010 09:27 PM|
so the cam specs would be more like this?
They're similar to some blower cam specs for a ls1 on Engle's catalog...
|08-18-2010 12:17 PM|
Sounds really cool!
This thread needs some pics as you move along.
|08-18-2010 06:16 AM|
Then get a smaller cam. 210-220 should be more than enough. you can go with a narrower LSA with those small durations too- like 110.
|08-17-2010 10:29 PM|
Sound isn't a big deal here, I may have to pull some light loads (snowmachines~ around 2500Lbs total trailer weight)
but nothing much. It'll be 4 Wheel drive, just kuz I live in Alaska, and, like I said before, sound is low on the priorities list. OH, and it'll have a big fat nice 'n toasty heater.
|08-17-2010 02:51 PM|
The cam is a tad on the big side if you want pulling power, but it'll give you a decent sound and it sounds like that may be important for this project. If sound is a concern I would also tighten the LSA up to a 110-112 and shorten your intake duration by a few degrees. DON'T go any bigger. You don't want a power peak over 6,000 RPM. ideally for a street engine you want it to peak around 5000 RPM so you'll have more power where you'll use it.
If it were my build I would be running a cam with about 215/225 on a 112LSA.
With your cam 8.5:1 compression will help off idle response, but any higher than that and you'll really be sacrificing some power.
|08-17-2010 02:39 PM|
|QParker||You can see my cam specs on the first post, should I change it in any way, or is it fine? I was thinking a little more exhaust duration, like 235 or so, but what do I know? What compression should I run with that cam?|
|08-17-2010 02:39 PM|
That'll greatly help, but you can always do better. That is a great first step though.
|08-17-2010 02:33 PM|
|QParker||It'll have the water/methanol injection, won't that cool it down enough, or will I need something else?|
|08-17-2010 02:01 PM|
Intercooling would be the next thing to consider, especially in this case. Getting your temps down and your density up can really make a difference.
|08-17-2010 01:52 PM|
that's exactly what I was thinking cobalt, I just lost words...
While I've got attention who makes good reliable bearings and gaskets for the sixes, mine in particular?
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