bandit1

iTrader: (12)

Okay well my mods are pretty well documented in my sig I ordered a 3600 stall converter and would like to know what the best recommend would be for my combination, with the stall at 3600 and I do not want to take the motor too much higher than 6500 as autos do not like sustained high RPMs. But I did use the GM LS6 MLS gaskest so they probably lowered my compression a bit I was told that with the 59cc chamber I would be about 11.5 to 1 but figure they lowered it to about 11.0 to 1 (the heads have not been milled either) I am quite happy with the numbers my car is making now even on the mustang dyno but would like to see more under the curve torque as well. Thank you guys you are AWESOME! Do not mind ordering a custom ground cam either does not need to be a ready on the shelf cam but if their is one thats close to what i want all the better less time to wait thanks.

Patrick G

iTrader: (14)

Because you're running an automatic, you'll want to have a little bit earlier intake valve closing point to pump up the mid-range torque more and limit your rpm.

A 228/236 .588/.602 110LSA +2
This is a custom cam with Comp XE-R lobes and it will definitely clear.

If you don't mind fly cutting, then you could consider a small Donkey Dick cam:
235/242 .646/.610 110LSA +4
This too is a custom cam using Comp LSK/XE-R lobes. It has very similar DCR numbers as the smaller cam, but P to V will be very tight. I may run this cam in the near future (just for fun).

PREDATOR-Z

An issue you'll face is the Ferrea valves. They are known to reduce PTV by as much as .040 due to the thickness of the base.

I would say a 228/232, .588/.592 112+1 has a good chance to fit.
the increased duration and overlap (from -4>+6*) should net you a good 15rwhp+

That gives you a good 8.7 DCR and depending on piston position and compressed gasket thickness (~11.3x SCR)

cam should be degreed on install.

bandit1

iTrader: (12)

Thank you guys so much for the fast responses and the good info the cam is now on order you guys are great and I will keep you posted as too the results

Patrick G

iTrader: (14)

So are you going to tell us what you ordered?

Camaross124

yeah i have an A4 too

that donkey cam your saying patrick would peak where?

and also that 228/236 where that peak?

can the patriot gold springs hold up 15k with xe-r lobes or lsk lobes?

Patrick G

iTrader: (14)

The 228 cam would peak around 6200 and carry power nicely to 6800. Ideal shift points would be 6400rpm with an automatic and 6600 with a stick. The 235 DD cam would peak at 6300 and carry power easily to 7000. Ideal shift points for it would be 6500 with an automatic and 6900 with a stick.

ringram

You dudes must use some cam software to know those things.
Either way nice work.. and info.

slimcracka

iTrader: (7)

yes i too have been meaning to start a thread like this...but sence someone has already ill hijack lol..sorry ill appolagize (sp) now lol

ok i have a DD car that ive been thinkng of doin a cam in..i want to have some good power and run as strong as possible..i plan on keeping my shifts at 6200 and i too have a ss3600 stall..but kicker and where it gets hard.. im runnin manifolds and want to keep them i also want some what of a stealthy cam.i was considering the cheatr but after seeing some of the graphs with stock heads i wasnt too impressed..and having an auto it would be less.other mods to my car are in my sig..it has stock 3.23 gears and i might later down the road get 3.42s.. if you have any questions just ask..i want yalls help considering yall know yalls shyt..thanx

justin

ArrestMeRed99Z28

iTrader: (1)

I don't think you'll feel any difference between the 3.23 and 3.42 gas prices be damned get 3.73s (good) or 3.90s (better ) I don't know of any cam, other than the CheaTR that likes exhaust manifolds, if you want a complete guess I'd say 220/228 on a 116 (+4?) to keep it stealthy. Patrick and Predator can probably give you a much better answer.

slimcracka

iTrader: (7)

thanx man for the help i rode in some a4 cars with 3.42s and i loved it. and there cheap if i find a factory 6 speed rearend lol..

PREDATOR-Z

To benefit from a cam with stock manifolds and shifting at 6200 a low duration cam with peak points of 5800>5900 is in order.
Off the shelf you might want to take a look at the CRANE/VINCI cams.

I had similar criteria for my vette, so i made a Comp cam XE lobed.
210/224 .555/.568 115+1
Peaks at 5900 and shifts at 6200
tame as stock, yet netted me 29 rwhp with just a couple of bolt ons (Halltech, ported TB and magnaflow cats/X pipe setup)

What you want is a high split exhaust biased cam with 39/40 IVC

bandit1

iTrader: (12)

Well I have heard nothing but rave reviews about PredatorZ and Patrick G and since you both felt that .588 lift was good for intake lift I kept that and you were both close to .598 for exhaust lift so I went with a straight .598 for the exhaust, I also went with the 228 intake duration as there again both agreed, the exhaust duration was between 232 and 236 so i went one better and did 234, and one said 112+1 and the other said 110+2 so I chose 111+1 so the specs I have for the cam that I ordered are as follows

228/234/ 588/598 111+1 with XE-R lobes

Dont want to do any fly cutting so i thought this will be a good compromise and according to desk top looks pretty good what are your thoughts and is there anything that I have changed thats going to screw things up better to know now before they make it and I install it haha. I was a little worried about going 110 cause it being an auto and my tuner is not the best thats why I have chosen to learn about it and start doing my own I was worried about getting the 110 lobe sep to idle properly so I would like to know what you both think of the cam that i kinda made up out of the 2 cams that you both suggested.

On another note Patrick I did follow your set up while in a tuning session yesterday and set up my tuning alot like you suggested in the post about your torquer cam. Where you said to have afr around 12.8 till 4500 then fatten it up a bit till 5400 then lean it back out to 12.9 to 13.0 towards the top and did the same with my timing had to do a few tweaks here and there as well to customize to my peticular engine combo and auto trans but seems like a great way to do it runs much better!!!!

Camaross124

on this A 228/236 .588/.602 110LSA +2

reving to 6500 rpms... am i leaving any power on the table with just a SSRA, 78mm lid, LS6 intake?

how much do you think the tsp 85 mm lid and the slp 85mm MAF sesor, and 90/90 from fast/nw would benifit me?

i do intent to put heads on in the future

Patrick G

iTrader: (14)

FAST 90 doesn't really show its best benefit until you add really good ported heads. So if you're still running LS6 intake and TB:
TSP 85mm= 0 gain
85mm MAF = 0 gain

Bottom line, the heads are the choke point until you get ported ones. With ported heads, the LS6 intake is the choke point. Add a FAST 90 with ported heads and the MAF becomes the choke point. Add an 85mm MAF and you're good to go. The 85mm lid is still necked down like a standard lid so there's no airflow gain, just better fitment with the larger MAF.

bandit1

iTrader: (12)

so patrick what do you say about the cam i came up with??

Patrick G

iTrader: (14)

I would put that cam in at 108 ICL with a car running an automatic. 110 ICL (dot to dot) will make it a little softer on the launch and at shift recovery.

PREDATOR-Z

Actualy it is not bad, but I would put it on a 110+2
why, because it gets you a IVC of 42 (~6200 rpm peak), Slightly exhaust biased (since you are A4 and will not rev forever) and 11* overlap with 49 EVO still is nice power under the curve.

BUT, remember the Ferrea valves and you better measure at those tight LSAs because (I repeat) they eat up at least .040 in PTV both int/exht.

BTW, your cam will have a 8.8 DCR range so 93/94 octane is in order.

bandit1

iTrader: (12)

Okay that sucks as I have only crappy 91 octane avaliable to me!!!! any way to get around this I alwasy use premium anyway in my car.

slimcracka

iTrader: (7)

thanx for the help pred-z.. anyone else wanna take a stab?