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Cam and Head Package?

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Old Aug 11, 2009 | 08:36 PM
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Default Cam and Head Package?

The more I am looking into things I think I want to do a heads and cam upgrade before I throw turbos on the car.

My question is what is the best and most aggressive package that includes everything for me to just "bolt" everything on and install the cam myself? I want a kit that doesn't require me to research everything till I'm sick and tired of researching (which is what I have been doing).

From some of the cams I had looked at I found this one which I think I would like a lot but I don't know how much HP I would gain from it.

XFI™ XE-R, XER273HR by Comp Cams

Idle sound - http://www.compcams.com/Base/MultiMe...44-11_Idle.mp3

Pull Sound - http://www.compcams.com/Base/MultiMe...-11_Pull_2.mp3

I love the way this cam sounds! I really want a street performance / strip performance package but will work with the turbo that I may put on at a later date.

I am also aiming at at least 480+ RWHP with the kit. To get this I am planning on adding headers and a FAST intake manifold & throttle body.

I was thinking about adding higher flowing fuel injectors too but if the stock will work for this application I may just keep using them.

Any and all help is greatly appreciated!
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Old Aug 12, 2009 | 09:06 AM
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I have the TSP 233-239 duration cam with the 112 lobe seperation.(when you buy the package they offer you any cam they have for the same price) For wild HP they told me the Tsunami cam was the way to go.
5.3 liter Stage 2.5 heads, on a 2000FRC with LG Streets to B&B bullets, My lift numbers are .59X/.603 And my car rips with the stock intake on a mild tune. I figure about 420rwhp at the moment and will be adding the FAST 92 intake with the FAST 92mm TB. within the month. Should lay down appprox 460rwhp. Bro the head cam PKG was under 2 grand so I cannot complain. But yeah my idle rocks the Comp. Go to you tube and look up TSP 233-239 on a C5. Dave
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Old Aug 12, 2009 | 09:40 AM
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That package looks really sweet for the price but doesn't it change your compression ratio a lot?

I'm only wondering if that package would support the sts squire package with maybe 10lbs of boost in the future.
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Old Aug 12, 2009 | 09:46 AM
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I can put together a nice package for you but 480rwhp wont be cheap. You will Deff need injectors and a great set of headers if you dont have them. Let me know either way even if i can just help you out with the tune when your finished.
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Old Aug 12, 2009 | 09:53 AM
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What type of heads do you suggest for that application? & are all the required extras with the heads? Like springs etc
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Old Aug 12, 2009 | 10:10 AM
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XFI™ XE-R, XER273HR by Comp Cams
Details: http://www.compcams.com/Cam_Specs/Ca...csid=1092&sb=2

224/230 581/588 114+2

2000 to 7000 rpm range High RPM Street Strip cam

I am also aiming at at least 480+ RWHP with the kit. To get this I am planning on adding headers and a FAST intake manifold & throttle body.
with some AFR 205 heads milled to 61cc, fast 92/92 and LG Pro LTs the YES, may be possible
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Old Aug 12, 2009 | 10:20 AM
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480hp then forced induction? I'm thinking a forged block is in his future along with other drivetrain upgrades.
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Old Aug 12, 2009 | 10:22 AM
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and lots of cash.
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Old Aug 12, 2009 | 10:28 AM
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If I add the f/i I would add forged and upgrade my drive train.

I just want to make sure the heads and cam can take it

When you say milled to 61cc, do you mean request that before they are shipped or have it custom milled?

Also if 480wrhp is just out of reach for the price range im looking for (between 4-5k with me doing the install) then what package would give me the most power for a reasonable cost that will support boost without forged parts?

I know I'm asking many different things but I'm just trying to weigh out the options before I go ahead and make a big purchase.

Thanks!
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Old Aug 12, 2009 | 10:32 AM
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Originally Posted by 0Stealth0
If I add the f/i I would add forged and upgrade my drive train.

I just want to make sure the heads and cam can take it

When you say milled to 61cc, do you mean request that before they are shipped or have it custom milled?

Also if 480wrhp is just out of reach for the price range im looking for (between 4-5k with me doing the install) then what package would give me the most power for a reasonable cost that will support boost without forged parts?

I know I'm asking many different things but I'm just trying to weigh out the options before I go ahead and make a big purchase.

Thanks!
What mods are on your car right now?
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Old Aug 12, 2009 | 10:36 AM
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Currently the only mods that I am aware of are the vararam air intake and the corsa catback exhaust. There are no headers from what I can see other than stock and I would doubt that there is an x pipe underneath the car but I haven't been under it yet to find out.
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Old Aug 12, 2009 | 10:46 AM
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Also, what is your ultimate goal for HP and type of driving you plan on doing. Is it just for bragging rights and looks? Each driving style has differet parameters for building. Each one has pros and cons.
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Old Aug 12, 2009 | 11:07 AM
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Originally Posted by 0Stealth0
Currently the only mods that I am aware of are the vararam air intake and the corsa catback exhaust. There are no headers from what I can see other than stock and I would doubt that there is an x pipe underneath the car but I haven't been under it yet to find out.


Is the car auto or 6 speed?
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Old Aug 12, 2009 | 11:07 AM
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You want to set up an NA H/C package and then want to go FI. Your going in 2 directions. Pick one and stick with it.
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Old Aug 12, 2009 | 11:19 AM
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Originally Posted by 0Stealth0

When you say milled to 61cc, do you mean request that before they are shipped or have it custom milled?
YES

Also if 480wrhp is just out of reach for the price range im looking for (between 4-5k with me doing the install) then what package would give me the most power for a reasonable cost that will support boost without forged parts?
that is the better question to ask.

and I agree. H&C or FI? cant do both well.
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Old Aug 12, 2009 | 11:42 AM
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Originally Posted by PR1AWRet
Also, what is your ultimate goal for HP and type of driving you plan on doing. Is it just for bragging rights and looks? Each driving style has differet parameters for building. Each one has pros and cons.
I want a street racing setup. Not merely bragging rights but to be able to race it either on the street or at the track. I drive mostly in the mid to high rpms on the street as it is. I do want to be able to go above 500 rwhp though without spending ungodly amounts of cash. I would like to keep the stock pistons for as log as possible. I want my engine to be solid and able to handle all of the mid to high rpms without needing rebuilt.

Maybe I'm asking the impossible I am not sure since this will be my first major modification for my car.

nickolbag, I thought there is a happy medium where you can get benifits from both if you pick the head/cam setup just right or am I mistaken?

I also want a nice deep muscle sound from the car.
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Old Aug 12, 2009 | 11:55 AM
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Your best bet is to get a good set of headers and do a cam right now along with other nec bolt ons...Clutch if its 6 speed or converter if its auto ect. That will eat up your 4k real fast.
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Old Aug 12, 2009 | 12:00 PM
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Is the clutch a fairly hard process and can that be held off for the time being? I have a 6spd. And what about the rear diff is that fine stock?

Thanks!
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Old Aug 12, 2009 | 12:11 PM
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Originally Posted by 0Stealth0
nickolbag, I thought there is a happy medium where you can get benifits from both if you pick the head/cam setup just right or am I mistaken?

There is a medium but you will have to make sacrafices. Cam profiles are different for both applications. The piston design and what heads you use will vary. CR will be different. You can make NA power with a high CR H/C package but can't run a lot of boost with high CR. Build it a low CR motor to ru a decent amount of boost and your NA numbers will suffer.

Are you going to want to change the cam or heads when you finally go boost?

I'm kind of in the position where my motor is a "happy medium". I have a bottom end ready to handle a lot of boost and a top end built for an NA setup. I plan to go boosted in the future but I'm going to have to do a head change when it happens.

I'd have been much happier having a setup built right for either NA or boost but these were the cards I was dealt for now.
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Old Aug 12, 2009 | 06:44 PM
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Basically, to achieve 480 RWHP, NA, you need to boost compression, and get the very best heads, and a fairly big cam. Most of those things don't go with adding turbos later. The heads would be fine, but they'll be optmized for high compression, so if you add turbos, you'll also need to get dished pistons to lower comp. The cam that works for 480 HP NA won't be ideal for FI, that's for sure.
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