LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Gm 846

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Old Oct 11, 2007 | 03:14 PM
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krillformula's Avatar
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Gm 846

Anyone running this cam? I think I have been looking all over internet without finding any good info or videos, except for 2-3 threads on here
I might be putting this cam in my car soon and I really want some info like driveability, some numbers, a dynograph and I havenīt heard it yet so a idle video would be nice!
Old Oct 11, 2007 | 03:28 PM
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I went from the crane 227 (210/224) to that cam and it actually slowed my car down. I lost 1mph in the 1/4 with it.
Old Oct 11, 2007 | 03:50 PM
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hmm ok. But overall, did it feel slower and how would it be for a DD car, no problem running on low rpms, good brakes?
Old Oct 11, 2007 | 04:50 PM
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Originally Posted by krillformula
hmm ok. But overall, did it feel slower and how would it be for a DD car, no problem running on low rpms, good brakes?
It was fine for a daily, it had some cam surge below 1500 and the brakes were fine. It felt alot slower due to the lowend I lost.
Old Oct 11, 2007 | 05:05 PM
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Go with the 227 and be done with it. JMHO
Old Oct 12, 2007 | 03:31 AM
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lost lowend is nothing I want to have so I may pass on this cam, and I may not like the revs either.. So Iīve heard that the crane 227 is a little low end monster
Old Oct 12, 2007 | 09:38 AM
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The 227 is considered an RV cam and in cars weighing in at 4000#s seems to do the job in getting them out of the hole. I figured that since my 97ss is somewhat of a sled, that the natural low-end torque of the Lt1would give it even more out-of -the hole getup and go. It did.

On the other hand, a baby cam is not going to give you the high-rev power you are looking for at the end of the quarter mile. The 227 is a 6000 RPM cam and the peak power comes in under 6K and low-end power starts low and is consistant through the mid-range.

Seems that most Lt1s, even with just bolt-ons will take higher hp cars out of the hole, however about mid-range the bigger cams will take over because the revs are up and that's where they really excell.

I like the 227 because on a stock bottom, going much beyond 6K puts quite a strain on the bottom end. I like it because of the stock idle, and the low-end grunt.

When you go with a baby cam, you need to concentrate on improving your top-end by improving your valve train, good heads, traction, bullet-proof rear end---if you intend to beat the hell out of it.

If you are using your car primarily for a DD, a hi-rev cam can be a pain in traffic having to keep the revs up to keep from surging, etc.---although I'm sure that there are many out there who will say that their bigger cams work just fine as DD---and I can't reasonbly disagree since I don't have one.

Most gear heads consider the performance in the 1320 the goal. Big cams and cubes are the way to go, if you don't intend to spend most of you time on the street. I have seen some pretty impressive performance from those who have the baby cams along with extra little things that improve the mid-range and top end and enjoy the stock-like drivability.

You have to determine what you intend to do with the car before you decide on a cam---and only then will you be satisfied with the results. JMHO
Old Oct 12, 2007 | 10:09 AM
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Good writing, very good info.
My usage of my car is only in the summers and it is my only car in the summers but I dont drive it everyday, maybe 2-3 times during the week and more in the weekends. So mostly it is a weekend car that sees a little street and road racing and I have never been to the track yet, but plan on going there a couple of times next year.
So I pretty much know what kind of cam I want to go with, just havenīt find it yet
Old Oct 12, 2007 | 12:54 PM
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The GM cams are all old technology. Go with something else as stated above. Check out the Lunati voodoo grinds as well, just make sure you don't skimp on springs.
Old Oct 12, 2007 | 04:33 PM
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Yeah I think im gonna go with a custom cam..
I plan on going with crane 10308 spring-kit, but I am still not sure about spring seats with these springs, can I use stock seats or what? Have heard that the seats that are in the kit itīs more like shims..?
Old Oct 12, 2007 | 04:44 PM
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The 10308 includes the 99893 springs with OD 1.460 which should fit right in the stock seats. Seat pressures 120 @ 1.875 installed hgt and open pressures 425 @ 1.180 hgt.

One should pick the cam and get the specs along with required spring pressures, prior to selecting the springs.JMHO
Old Oct 12, 2007 | 06:03 PM
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Originally Posted by BUBBA
The 10308 includes the 99893 springs with OD 1.460 which should fit right in the stock seats. Seat pressures 120 @ 1.875 installed hgt and open pressures 425 @ 1.180 hgt.

One should pick the cam and get the specs along with required spring pressures, prior to selecting the springs.JMHO
Yes, those springs use the stock seats. You should let whomever designs the cam choose the springs for it as well. There's no reason you should go with a custom cam if you're only looking for something that small. The Crane 227 would be perfect as well as plenty of other cams. You can use the money you save from a custom cam to get better springs like the PAC 1218 or another beehive spring. That will free up more hp and "could" make up for the little bit of hp you're "losing" from not going custom.

Honestly, I'd rather have a shelf cam and great springs than a custom cam and good springs.
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