stang90gt50

iTrader: (6)

I wish Tony would learn to stay out of posts when he is "unwanted"...

Patrick G

iTrader: (14)

There you go stirring the pot again...absolutely no tech. It's obvious you are an AFR hater. Last warning. Post up tech or prepare for a long vacation. Tony had every right to post in this thread because he was called out. Keep it technical or say goodbye.

Blown04Z06

dude i sent you an email about spec'n out a cam, have you taken a look at it?

Patrick G

iTrader: (14)

I'm out of town and I don't have my cam program with me. I'll look into it as soon as I get back home. Thanks for your patience.

UGotBeaT

So does Jon Kaase and all the engine builders in the Engine masters challenge use this DCR calculator

BTW nice numbers TEA and blue meanie

Hardtop

iTrader: (3)

I had one of the first sets of your stage 2 5.3's in this area. A few more sets were sold when they saw how well my 3550 lb car ran. I'll be calling you for a set of TFS heads when it's time to up the anty on the Z06.

Bruce

JNorris

iTrader: (4)

Great numbers!

Hardtop

iTrader: (3)

I'm not doubting what you are saying Pat, but consider this. Some cars that run on street tires are traction limited, and huge torque down low can make the car hard to hook, and be harder on drivetrain parts. Sometimes its better to get the car hooked before the power comes in hard. This is also a Florida car, and I'm wondering at what point does high compression and DCR start to cause problems with KR on a car with A/C idling, in 95+ degree heat. Either way these are fine numbers from a known conservative dyno.

Bruce

Patrick G

iTrader: (14)

Bruce, I can appreciate what you're saying, but why in the world would you want to leave that much power and torque on the table? Sure 20-30 additional lb ft of torque may pose traction problems in 1st gear, but what about gears 2-6? With so many people racing from a roll these days, any advantage you can get in the mid-range is worth getting, especially when it does not come with any loss of top-end power. Again, you will gain power down low and possibly make even more up high. Higher DCR and better positioning of overlap are the keys.

And as far as heat goes, I don't think Florida is any hotter than Texas and these high DCR setups run just fine on super unleaded when they're set up properly.

Brian Tooley Racing

iTrader: (13)

I will try to run one of your cams across the dyno if you want to spec one out. I just got another cam last week from a guy who said he could lay some smack down, so we will see. The thing you do not want to forget is, a head that flows more air everywhere, makes more power, but also makes more cylinder pressure then a lower flowing head and will get into detonation sooner.

You have probably seen me post on some of these software programs before, when I got started about 15 years ago I bought every software program you could buy. By 1993 I was hired into Holley and I was doing the SysteMax engine package development, we were using Flowpro software on the flowbench, Campro software on the cam measurement system, and both of those programs would download data directly into Dynomation. We would then engine dyno the stuff to see how it panned out, you could pretty much throw the software predictions in the trash can.

Don't get me wrong, I use software everyday, the CAD/CAM software I use to recreate our original ports has obviously help make me what I am today, but don't let a piece of software override real research, it just doesn't work that way.

Patrick G

iTrader: (14)

I totally agree on the software thing...it's more of a tool to get you in the ballpark than anything. Funny, I had 2 vendors run my last 3 cams on their own engine dyno software.

Cam 1: 233/235 .649/.598 112LSA +2
Cam 2: 234/238 .598/.605 114LSA +2
Cam 3: 224/228 .636/.639 110LSA +0

Both vendors said that cam 2 would make the most peak power and the most average power (from 3500-7000rpm). Wrongo!
Cam 2 was a pooch! It had the lowest rwhp, lowest peak torque and the lowest average torque. So much for dyno software. No, I use my program to predict DCR and get me the valve events I need and position overlap to the side of TDC that I need. Experience has taught me where those valve events work best with these motors. As long as people are willing to degree the cams in, you can get it right 99% of the time.

The cam specs depend on how aggressive the enthusiast wants to get with ramp rates and spring rates. An XE lobe can be very effective, but I still prefer the XE-R, XFI, and LSK lobes. I need to check out the Hellion lobes that Ed Curtis likes so well. Those are making nice power too. But regardless of the ramp speed, proper valve opening and closing points reign supreme.

JZ'sTA

iTrader: (23)

Maybe you haven't noticed but nobody cares to have your worthless posts made in any thread's anymore.
How can you talk **** to Tony about coming in here and not provide any tech advice of your own? So you tell him to get out when all your doing is trooling yourself. You are worthless and haven't proven anything to anyone of us except that your useless, and have no credit on this site.


Back on topic. Nice results.
I feel there could be some improvements with a cam swap as well. Maybe not peak power, and maybe not even above 6000 RPM's, but some power/torque could be gained in the lower RPM range.
Also I must agree with Pat on the extra torque....
Either way you will spin the tires. If you can control your car and your foot enough you should stop spinning at about the same time. Now you have all this extra power in 2nd 3rd and 4th gear to help win the race.
Also going from a roll should be a big improvement as well. Better throttle responce and more torque can help win a race from a roll.

Blue Meanie

iTrader: (3)

Update, just got back from NLP, the car is running so rich my front 02's fouled out over the weekend and the car won't idle when it trips the SES and code p1133 & 1153. I am hoping when the tune is completely sorted it will make a few new ponies. In the meatime the car will be down until Mike Norris gets back from vacation. Might have some better numbers soon. I am actually happy with the cam for now, doesn't feel like its beating the rear end to hell.

JakeFusion

iTrader: (7)

That cam looks like the MTI R1...

If you want something similar to what you have, but that will make a lot more average power, get a Comp XE-R 232/234 112+2 camshaft.

jermstyle

Does anyone currently grind that cam?

JZ'sTA

iTrader: (23)

Yep and Comp dealer, comp themselves or just call TSP.
That is the specs of the Torquer 2.

Patrick G

iTrader: (14)

Try this one, it will fit your 61cc TFS heads and will not be too big.

Comp 2128/3730 HR 110LSA +2

This is an LSK/XE-R combo that will Cam Doctor around 233/240 .646/.609 110LSA 108ICL

With a 61cc chamber and .040" gasket, your DCR will be around 8.6:1. If you wanted to back that down, you could either go with the stock gasket or grind the cam at 109ICL (+1). This is a very well-rounded cam that will make power everywhere without being too big. I like the fast off-the-seat ramp of the XE-R lobe for exhaust, but I prefer the more generous curtain area of the LSK lobe for the intake.

Firehawk441

iTrader: (41)

I sent Patrick G a PM three weeks ago with no response.I would appreciate it.

Patrick G

iTrader: (14)

Sorry about that. I get 20-30 PMs a day. Most of them asking about cam specs and recommendation. I put lots of thought into most of my replies. If yours fell through the cracks I apologize. There's only so much time in the day to do this stuff for free. If you still want an opinion, please resubmit your question and I'll do my best to give you an honest appraisal.

Cgillies86

iTrader: (1)

You are making me question my cam choice that I made with my car. I went with a 236/236 .602/.602 LSA 113 XER Lobe. I am starting to wish I went with a cam on a 110 or smaller LSA. Hopefully my static compression will make up for my high LSA. My static compression will be > 11.3:1. At the very least hopefully I will have reasonable peak power.