Hey folks, doing a Whiplash cam install in my A4 the question is what stall are you guys running with this cam? I'm thinking 2800 currently, any reason to think otherwise?

I'm not expecting to make huge power, goal is to take a full second off my 1/4 mile time- leaving me with a mid 12 second car on street tires fat.

This'll be first time I've dropped the rear end, any tips?

 

That converter sounds about right based on past experience with a converter on a different type of vehicle that did not have a lockup. What made you choose that cam over the other popular grinds, I know the company claims it's the ultimate LS1 street cam but just looking at the numbers it seems to be a little too much cam for the street? What other modifications have you done are you using the stock heads, how many miles on your LS1?

 

Let us know how you do. I've run a 12.33 with a comp 224R cam and headers, vararam and 3.42 gears A4, stock converter on street tires. Ran 12.59 without the cam, thought the cam would get me a little more. I was shooting for low 12s on street tires so I guess I met the goal.

 

I would go with at least a 3200 stall. That's a healthy cam for an A4. I run a G5X3 112LSA (also a healthy cam) and run a 3600 stall but with 3:73's.

 

Like others said, around 3000 would probably be right. I would think it's too big for the application and a smaller cam would be faster in a full-weight street car since we don't race dynos, but I guess it all depends on what you're trying to accomplish. Of course, there's this:

http://www.englandgreen.com/page8/page8.html

But since it's his cam, why not ask EG what he thinks?

 

To answer the questions about the Cam choice- EG seems to really stand behind their cam's and I haven't read about someone /not/ enjoying their cam. I don't care about manners particularly- it's a full out weekend toy for me, as demonstrated by running strait pipes for exhaust. They also seem to be more interested in what I am - power under the curve. I talked with EG a bit, and will probably discuss it further with them... I have no problems putting in a smaller cam to have a faster car- i was simply under the impression the whiplash had the best powerunder the curve out of the few I had been looking at. (I'm open to suggestions, even from other sources?)

As for other bits on the engine, I'm planning to do springs/retainers/rods and probably an intake and headers over the winter. keeping stock heads. As for dyno numbers, this car won't go on the dyno as I didn't get before numbers (no sense in it now except for tuning, which can 99% be done on the street), but I will report back strip times, I ran a 13.6 with it bone stock besides a Vararam, so I'm hoping 12.6, might be stretching it. I think I'm going with a fuddle converter, and I think i'll do 3000-3200 to be safe and ensure i get my track gains as desired.

 

You don't need to go with a large cam to make good power. I would advise that you try to strike a balance of excellent drivability and increased power across the entire rpm band. For our 346cu engines cams with an intake duration in the 220s on a 114LSA seems to provide a good balance. That is why the 224/224 cams are so popular. You will pick up 40-60hp with a 224 cam and it will be across the whole rpm band. The stock cam in a Z06 is 204/218 .551/.541 117.5 LSA, so the 224/228.581/.588 114 LSA is still represents a significant increase. Plus, if properly tuned the car will still idle at a stock 800rpm and will exhibit no bucking or surging at all.

Once you get up into the 230s for intake duration you tend to lose some power down low but gain some up top. Then most folks wind up changing the gears to 3.73 or 4.11 to make up for the lack of oomph down low. Furthermore, it can take a bit longer to perfect the tune with these larger cams.

At the end of the day it is really just a matter of where you want to make the power. For a world speed record you may want throw in the largest cam you can find. For a street driven car you may value stock-like drivability and street light to street light type performance then a average size cam would be more appropriate.

Also, if you ever plan on forced induction down the road you may want to select a cam that could be matched with a supercharger or turbo.

The folks at England Green are excellent you just need to identify what your goals are and they will lead you in the right direction.

Good Luck.

 

iced98lx decided on our Mayhem cam as a compromise between going too big and acceptable street manners with a stock stall converter.

Stephen

 

Heck yes, thanks for all the AWESOME advice on the phone Stephen, customer service from EG is EXCELLENT.

My Mayhem install will be well documented- I am very excited about a cam that will give me great power across the band and let me leave my stall stock.

Just wish I were closer to Texas so I could have them work their tuner magic on it when its all done.

Don't see any Mayhem cam stories on the forum yet, who has this cam?!