800 HP best cam for single charger?

[jdweld12v]

I am in process of building a 800 HP single charger p pump 24v. I have 115 springs on my head and getting intake cut and having runner intake installed. Motor is bored out 20 over and going to run a 13 mm p pump I was curious what would be a good size cam to run and get most out of it. Thanks

[CorneliusRox]

It all depends on your RPM range. Where the turbo is going to spool, and where the pump is going to flow. With a 13mm pump, I am guessing you'll have more than enough fuel anywhere in the rpm range, but your large turbo might not light until 2200rpm+ and so you'd want your power to come on higher, and in that case a different cam might suite you. A lot of people like the Hamilton 188/220 cam because you don't have to flycut, but if you are planning on staying below 3500rpm, you probably wont see much improvement using a cam.

[jdweld12v]

The pistons are still on bench and I have mill. So cutting the pistons is no big deal just want good cam I can maybe someday even run up to maybe 4 digit HP numbers with no concern thanks.

[JL Builders]

I got a Hamilton 200/220 for sale. Requires 80thou cut.

[Dieseljet]

If you go with a cam that requires flycuts your power band will be moved up and spool up will be slow along with having low torque. A cam like the Hamilton 194/220 or the 188/220 will let you spool your charger up faster than the factory cam and make more power on less boost. You will make more hp and torque with a drop in cam for what you want to do. Also the more your cylinder head flows the less duration you need which keeps port velocity up and dynamic compression up which helps you burn more fuel faster and with less timing. A cam will not help you if your engine tuning is way off. You want to have as much air as you do fuel which is not always the case as it seems fuel is usually way easier to add than air. If you get that part right magic things can happen.

[jdweld12v]

Thanks for input guys! How much are u looking to get for your cam JL?

[whitneyj]

http://www.competitiondiesel.com/for...d.php?t=176166

[9724VF350]

Originally Posted by JL Builders

I got a Hamilton 200/220 for sale. Requires 80thou cut.

I had a 200/220 stuffed in a 24v with no flycuts.

[JL Builders]

Originally Posted by whitneyj

http://www.competitiondiesel.com/for...d.php?t=176166

Thanks

[JL Builders]

Originally Posted by 9724VF350

I had a 200/220 stuffed in a 24v with no flycuts.

That can happen too. I was just going off Hamiltons site.
It depends on many things. Piston protrusion, head gasket thickness, valve face depth, valve lash and so on.

Any who its a good cam IMO.

[EricStaab]

Originally Posted by jdweld12v

I am in process of building a 800 HP single charger p pump 24v. I have 115 springs on my head and getting intake cut and having runner intake installed. Motor is bored out 20 over and going to run a 13 mm p pump I was curious what would be a good size cam to run and get most out of it. Thanks

Do you know what spring rate you have on the springs? Are you driving this on the road often? The reason is that on a P Pumped set up depending on the how aggressive the cam is, and what exactly your doing with the truck, you may consider putting cam bearings in your block on all 7 journals. You also may want to go to a steel core as well. Also you can check out our cams as well. Running a 10% off right now.

[jdweld12v]

I plan on driving it maybe once a week and go to a local pull if I feel like it. Just looking to have fun the motor is going to be put into a 91 1st gen something a little different. Thanks for input guys help needed

[EricStaab]

I think a cam around a 188 220 would work very good for you. With the p pump and spring pressure and some pulling I would recommend to have your block done for the cam bushings. Your on the that border line. Your going turn some extra rpm pulling the truck, and with extra spring pressure you could push past your oil film a little. Also it would be done now while your engine is apart, and if you upgrade, you do not have to worry about it.

[CorneliusRox]

Originally Posted by EricStaab

Your on the that border line. Your going turn some extra rpm pulling the truck, and with extra spring pressure you could push past your oil film a little.

Could you up the oil pressure to help fight this? I know some have taken stock cams (some with complete stock bottom ends at that) to past 1000rwhp without hurting the cam. Thoughts?

[EricStaab]

Increasing the oil pressure, and using good oil will help, may even make it last a long time, and I know there will be people jumping all over me saying it is not needed, but I have seen enough failures to know that there is no exact formula for making it live there. Basically a person is gambling. I've seen 900 hp trucks run a long time no cam bushings, and then I have seen them completely eat the block. My thought is this, if you have the engine at the machine shop, already taken apart, spending the $400-$500 dollars to make it way more dependable is worth the effort. Plus if you upgrade even more, it is already done.

[CorneliusRox]

Originally Posted by EricStaab

Increasing the oil pressure, and using good oil will help, may even make it last a long time, and I know there will be people jumping all over me saying it is not needed, but I have seen enough failures to know that there is no exact formula for making it live there. Basically a person is gambling. I've seen 900 hp trucks run a long time no cam bushings, and then I have seen them completely eat the block. My thought is this, if you have the engine at the machine shop, already taken apart, spending the $400-$500 dollars to make it way more dependable is worth the effort. Plus if you upgrade even more, it is already done.

That's a good point.

[jdweld12v]

Thanks guys going to put cam bushings in to save my ass thanks