niphilli2

Hello All,

I want to start by saying I have spent a lot of time searching, and I understand that the vast majority of the people on this board are anti-cam for a non-stalled A4.

Here is the reason I ask: My dad is a 61y/o retiree. He has achieved his dream of retiring early and purchasing a nice used vette (12K mile 98 Vert Auto). So, this is for a 60+y/o man who has absolutely no interest in drag racing. This car is used to drive back and fourth to car shows and occasionaly 2 hour trips to NC from VA.

He wants a little more power so I said I would do the research. The car is currently equipped with stock manifolds, plan to install:
cam
Single 918 valvesprings
LS6 intake manifold
PP throttle body
Air lid like Callaway

These are the initial cams I researched:

NOTE: I am not 100% sure that the overlap figures are correct, I used an online configurator and I have found some confilicting information. Take this as a ballpark.


Thunder CheatR (219/230 607/604 117 lsa) Overlap = -9.5*

Comp Cam (222/224 581 588 114 +1 advance) Overlap = -5*

Comp Cam (222/222 581 581 114) Overlap = -6*

TR "TRuTorq" Level 1 (219/224 .609/.604 115 LSA) Overlap=-8.5*

TSP custom grind (219/222 607 lsl/.602 lxl 115lsa +3 Advance) Overlap= -9.5*

TSP custom grind (215/222 .604 lsl/.602 lxl 115lsa +3 Advance) Overlap= -11.5*

TSP 220r: (220/220 .581/.581 115lsa) Overlap = -10*

Thunder Old man (214/220 .600/.523 115 LSA) Overlap = -13*

COMP 54-412-11 (212.0/218.0 0.522/0.529 114LSA) Overlap = -13*

COMP 54-451-11 (208.0/212.0 0.554/0.558 115LSA) Overlap = -20*

'02+ C5Z06 cam (204/218 .551/.547 117 LSA) Overlap = -23*

This is my final list for consideration, from large to small:
EPS custom grind (218/230 .595"/.600" 115LSA +4 advance) Overlap = -6*

Custom Patrick G (218/226 .598EPS/.570XE 116LSA +4) Overlap = -10

VHP 056 (216/224 0.551/0.551 114.5 LSA) Overlap = -9*

Version of Ragtop99s cam (210/222 114 +4 .595XFI/.581XER) Overlap = -12

EPS TT1- (214/220 .600"/.564 115lsa) Overlap = -13*

Comp 55-424-11 (212/218 .558/.563 115LSA) Overlap = -15*

Further narrowed the list

EPS custom grind (218/230 .595"/.600" 115LSA +4 advance) Overlap = -6*

Custom Patrick G (218/226 .598EPS/.570XE 116LSA +4) Overlap = -10



For archive purposes here is the flow data for a stock LS1 head (Thanks LS1 Tech)
LIFT INT EXH
0.050 34.0 23.5
0.100 67.0 51.9
0.200 121.0 99.6
0.300 171.0 132.5
0.400 214.0 155.7
0.500 222.0 170.0
0.600 227.0 179.6
0.700 231.0 185.0

Can I achieve 400HP (340WHP), and stock driveability with this setup? Stock Vacuum, no pushing through brakes, etc...?





Thanks in advance!

-Nick

Sargevette

I ran a Vengeance Racing VRX3 226/228 - 585/588 114 LSA in my A4
non stalled LS2 GTO and it was perfect. Gobs of low end Tq. and a good power curve.

niphilli2

Did you have LT headers as well?

RonSSNova

I would contact the Comp Cams tech line and ask.
They grind most of these specialty cams anyway.

Ron

A.R. Shale Targa

True Comp does grind them...but others have their own lobe profiles and
in the case of Geoff Skinner @ EPS; he and Pat G worked w/Comp to
develope bee-hive friendly lobes which are aggressive opening yet set
the valve down smooth to make a .600" lift valvetrain stock quiet.
The 218/230 split works best w/stock iron manifolds....I used BBK shorty
headers and Corsa CB so Geoff knocked the EX. lobe back to 226 for me
My 03 sounds and runs totally stock, gets 30 plus mpgs, and dyno'd
365/345 SAE w/Speed Inc. tune. FWIW the PSI maxlife springs are the
longest lasting beehives and have ZERO failures

0C_Williams@RPM

the cams with the wide lobe separation and the lower valve lifts would be your best bet for "stock-like" drivability and reliability.

niphilli2

Is your car an A4?

baxsom

I would say that you should try long tubes, an LS6 intake, tune and a vavaram. that should get you close to the 340 rwhp mark without having to touch the cam from everything i have read on here.

A.R. Shale Targa

Mines an M6...but this size cam could easily work w/stock converter
It idled stock and I could ease the clutch out @ idle without killing it, no
low rpm bucking...nothing !! No check engine light and all this was B4
the tune..as I had to wait 1.5 months since they were booked solid. I
put 2500 trouble free miles on until the tune (although I did not go WOT
Now I will say that the tune made it much more crisp feeling...but all
my friends and family that drove it prior to the tune could not believe
there was a cam in it w/20 more degrees duration. The key is the wide
lobe separation. Many argue that this kills midrange torque but I think it
flattens and widens the useable power band as mine made over 300ftlbs
from 2600-6300 with a shift point of 6600. By all means everyone will
tell you that the single best improvement to an A4 is a stall but since
you want a cam I figured I'd share my experience w/EPS. Sorry for the
short novel.

Sargevette

Headers, exhaust, Fast intake, under drive pulleys and tune of course.

niphilli2

Sounds like a killer setup

Sargevette

Talk to Ron at Vengeance and tell him what your looking for.

niphilli2

Ttt

madmatt9471

Comp Cam 222/224 581 588 114+1 with heads on stock converter made over 400 RWHP

A friend of mine had a similar set-up and he made 417 RWHP and a stock converter -

Another buddy of mine has a 222/222 581 581 114 and LS6 heads and he made 385 RWHP and stock converter and 2.73 gears

It can be easily done, the major thing you need to do is get the Dyno tune done -

Have you thought about the VARARAM for him? It will really compliment all the other listed mods

Might think about 1 3/4" SHORTY headers as a minimum to help the package come together -

Thanks,Matt

madmatt9471

stock exhaust manifolds too and Loud Mouth mufflers!

niphilli2

Updated list with reccomendations

099blancoss

I would talk to Patrickg ... Your dads not drag racing so there is no need to move the power band and peak to a point where he wont ever use it... custom cams are a better way to go than off the shelf and no don't use Comp to spec it....LOL I've seen some disasters speced by them... Patrickg, EPS or even us would be a good choice to spec your cam.... HKE uses special lobes as well and actually has some of the fastest n/a cars running his combo's.

I would make sure you do all the bolt ons first.

niphilli2

I downloaded camquest (Very cool tool), below is some info from that software:

Reccomended camshafts of interest to me for category: Automotive, High Torque, good economy, idle, overall performance:
COMP 54-412-11 (212.0/218.0 0.522/0.529 114LSA)
COMP 54-424-11 (212.0/218.0 0.558/0.563 115LSA)
COMP 54-451-11 (208.0/212.0 0.554/0.558 115LSA)

0C_Williams@RPM

good for you - best to educate yourself on cam selection....here's a factory Z06 cam...

02-04 LS6 camshaft - 204.0 / 218.0 - .551 / .547 - 117.5 LSA

the comp COMP 54-424-11 would be slightly more powerful but still very, very well behaved. good luck !