DoctorFeelgood_

i'm looking for cam reccomendations for the ls1 in my 2002 camaro z28. goal is 400whp or 500 crank hp whichever is easier. I daily drive the car right now so i'm looking for something with decent street manners. I don't plan on revving it past 7k rpms as I plan on keeping the stock bottom end. it will be revved near 7k often though on spirited weekend drives. other mods i plan on doing are 1 7/8" long tubes, bigger injectors, trailblazer SS intake, and a manual swap. heads I haven't chosen yet. want to keep the 3.73 gears any help is appreciated!

Tuskyz28

Lots of choices. Take a look at my cookbook thread to get an idea of what you want.

bthomas

iTrader: (1)

You’re asking for 2 completely different cams. A 5.7 500hp cam is not a street or daily cam by just about everyone’s definition.

DoctorFeelgood_

it's only a temporary daily right now. will be more of a weekend warrior when I fix my original daily

gnx7

iTrader: (28)

400rwhp translates more to 460flywheel hp which most LS1 engines with cam/headers/LS6 or Trailblazer intake can make. Ported heads will add 30-40rwhp combined with some more compression. Once you drop another $1K+ on a FAST/MSD intake will you gain another 10-20rwhp. More cubic inches makes it a lot easier (6.0 shortblock) to make n/a power. To squeeze out the last few drops of HP staying n/a gets expensive!

DoctorFeelgood_

my LS1 only has 120k miles and its a rust free car that's why i'm sticking with it. definitely agree that more cubes makes more NA horsepower easier

03LQ9

Im using a Summit stage 4 truck cam, 226/230 .550 lift with cheap ls6 springs, car weighs 3600 plus and runs 11.3’s @ 118 at the track, math says it’s making 400 whp. The cam seems to make more low end than stock and the car drives great, still gets mid 20’s mpg with 3:42 gears and an automatic.

DoctorFeelgood_

I decided on the summit stage 2 pro LS cam. specs are 226/238 @.050, 113 lobe seperation (or 113+3 the title says 113+3 then the specs list says just 113), and .600/.600 lift. part number is SUM-8707R1 if anyone wants to check it out

Summitracing

Thank you for your patronage. The SUM-8707R1 is .600/.600, 226/238, 113+3 with 6* of overlap. The planned mods will be a nice addition to the cam. With an auto, it likes a 2,500+ converter but we see you're going to a manual so you'll be good with the 3.73 gears. It'll have a nice steady lope but be easy to tune and live with. Pair the 8707R1 with our .600" lift beehives or the Trickflow by PAC .660" duals and it will be happy out to 7,000+!

DoctorFeelgood_

are new valve springs all I need valvetrain wise? I plan on doing the trunion upgrade and getting a set of 243/799 heads ported

Summitracing

@DoctorFeelgood_,

You'll want some upgraded pushrods. With the 8707R1, we typically see a 7.400" or 7.425" pushrod used. Things can vary so we always recommend measuring for pushrod length before purchasing pushrods. If you don't already have a pushrod length checker we offer the Trickflow TFS-9501. We recommend a minimum 5/16" Chromoly pushrod with a .080" wall. You can typically find a set of 16 for around $100. From there you can get into a thicker wall or larger diameter pushrod. For excellent stability and strength check out our 11/32" HDR pushrods with a .120" wall. These have 25% less stress and 28% less deflection than a typical 5/16" x .080" wall Chromoly pushrod.

We like your plan for a trunnion upgrade and the ported 243/799 heads. We have bushing and bearing options in our brand as well as rockers fitted with a trunnion upgrade.

We'd also suggest new lifters. We offer Morel 7717 drop-in lifters with new trays as part number SUM-HTLSKIT3.

As a while you're in there mine as well get a new chain. We offer the CMB-09-0029 cam installation kit that comes with a new chain and the gaskets and seals needed for a cam swap.

To top it off we'd recommend a timing chain dampener. The LS1 didn't come with one. Trickflow offers the TFS-K30675600 timing chain dampener with an adapter bracket to help keep tension on the chain.

This will be a nice combo once it's all together. Let us know if we can be of any further assistance.

DoctorFeelgood_

@Summitracing what size injectors would you guys recommend for this application? also will I have to upgrade anything else in the fuel system such as the fuel pump or fuel pressure regulator? what about ignition? can I use the stock coils or should I upgrade? thanks for all the info this makes getting a plan together alot easier!

dannyz

Specs are similar to the asa hi lift cam, which has a 110 deg lsa vs your 113+3.
Should work well.

Formulaluvr

I went with a Texas Speed and Performance Bumpstick 4 cam kit with Kooks Headers and Y Pipe for more than 400 whp. See my video for the sound. It's badass. That's not including the fast intake and throttle body. 102mm. No need for bigger injectors yet. You're far from needing those. First you'll need the fast intake setup before you'll ever need any of that. You don't need more fuel for a while yet. You'll need a bigger fuel pump. So you ought to start with a cam kit a set of kooks headers a great HP tuners tune, maybe port and polisher heads. You'll get a 450-475 rear wheel horsepower that's plenty without changing your bottom end.

grinder11

iTrader: (1)

In what way are the 2 cams similar??? The ASA cam is .525" lift last I knew, vs the .600" lift of the cam mentioned here. BIG difference. The 110° LSA vs the 113° LSA are also VERY different. Only the duration figures are similar, IMHO. BUT, I've been wrong before. Also, IMHO, the ASA cam is a 25 year old lobe design, and it fails miserably when compared to modern lobes for street OR performance use. My .02

G Atsma

Well, hey, night and day are SO similar. Only a few hours apart, and one is a bit darker than the other. Other than that they're about identical....

grinder11

iTrader: (1)

Summitracing

With the 8707R1 and other planned upgrades, you should be fine with the stock fuel system. There isn't a need to upgrade the ignition system either.

Abs

lifts are the same. He said high lift asa cam, which is made by ws6store. Its 226.5/236, .600, .600, 110+3. So similar duration, same lift, but different separation.

dannyz

You are not keeping up with with the times my friend.
I am referring to the WS6 stores Hi-Lift asa Cam