Big Turkey

*EDIT: Here is an idle vid.

http://www.youtube.com/watch?v=IfDzSjVn508

Enjoy.*

I recently had Spin's cam installed. Made a couple of dyno pulls a few minutes ago. First made 461hp. 2nd pull netted 464hp/427trq. AFR still in the low 11s, timing hasn't been touched at 24deg. of advance up top. I've pulled it to 6600RPM and the cam has not fallen off of yet.

According to The Weather Channel it is 96degrees and 87% humidity right now.

For comparison's sake, when I had vararam/full exhaust/tune on this car, it managed to only pull 413hp on this dyno. When it was stock it dyno'd 374hp and went 12.6 @ 116 (200miles on the car, I couldn't drive it) in worst conditions than tonight. This is dyno reads pretty low, so I am not worried about the peak number, more concerned about the gain.

I am sweating my nuts off out there because all of the fans are on the car itself and not me (LOL), so I'm in the A/C, letting it cool down and I will make a few more pulls and get you guys an updated number.

I will give you guys a mod list afterwards as well, and my overall thoughts on this cam.

Update:

I'm done with the tuning for now. For some reason when I go back to my first 2 runs it shows a different number. I checked everything and couldn't get it to read where I found the original numbers, this has happened before, probably need to get it checked out. So here are the results:

Run 1: 461hp/419trq
Run 2: 464hp/427trq
Run 3: 476hp/427trq
Run 4: 486hp/429trq

AFR was 12.3:1, 26deg. of advance It made the same power with 28deg of advance but saw slight KR at 5200 so we pulled it out.

Mods are the basics: Kooks 1 7/8th LT's, catted X, Corsa, Spin's Cam and ported intake/TB, Vararam.

The Gain:

Comparing the dyno from when I only had full exhaust, Vararam and a tune, I picked up a PEAK of 71whp with this cam and ported intake/TB. The gain starts the second I hit the green button (usually around 3000RPM) on the dyno at 20whp, and steadily climbs from there. My torque reading was broken during the previous dyno so unfortunately I cannot compare that.

My thoughts:

I am VERY impressed and happy with this cam decision. I can say I was skeptical but hell with all of Spin's contributed info to this forum I figured the guy had to know what he was talkin' about.

The torque band is very broad. It hits 400ft/lbs at 3700RPM and holds it to 6300... exactly where Spin said it would. It keeps making power until 6300 then flattens to 6700 then it will drop 5hp at 6900 where the shift happens.

VERY streetable. It doesn't "lug" anywhere in the RPM band, no hiccups, it drives like a stock car. Hell, I get 33MPG cruising 75mph, which is better than my 30MPG stock. I would gladly give up that 10-15whp for this kind of driveability.

It also sounds pretty amazing. It'll talk some smack idling at a stoplight. But cruising down the street and the freeway you will never tell there's a cam there with the Corsa's. It sounds straight up like it did before the cam. When you go WOT, this thing screams. Real crisp and smooth. I love how it kept the original sound of my Corsa's though, cause I was afraid it was going to change that.

It's been said before and proven that this cam makes the power of a big cam but has near-stock driveability. So if that's what you want then this is the cam for you. You won't be disappointed.

I had planned on going to the track tomorrow night but it looks like there will be a 80% chance of rain all of this weekend.. but after that it's supposed to be in the 60s and I'm definitely down with that kind of weather. I will be on runcraps and will try to MPH the hell outta this thing and see where I end up. And now I'm off to bed.

c6 batmobile

Let me know how it does Im interested. What kind of dyno is it? Ls3 Im assuming.

carlrx7

ls3's like that fuel more than the ls2's. id probley settle at 12.5 and 28 degrees!, but let us know how it ended up.

Insom

Great results Wally!

Big Turkey

I updated the OP with all the info. I just got home, have work in the morning, and it was way too hot I couldn't take it anymore lol. We got a storm rolling in so it was extra humid today. Next week it will be 60deg in the morning and I will try to sneak in a dyno then to see the difference for my own curiousity.

I am debating on changing my intake system to a Killer Bee or a Honker. I like the way it looks better, plus it does flood here occasionally so I do not want to chance it since my car is lowered now. Thoughts?

PRE-Z06

nice results! Interested in track numbers, but get some DRs otherwise that power's gonna be wasted!

SpinMonster

I'm glad it worked out for you. I think a bigger air cleaner will beneft the set-up. You will hit 490-495 if you do swap it.

Seeing the power made from 480-500 car after car, it makes you question why anyone would want more intake duration and also dismisses the intaernet myth that you need more than a few degrees split from intake to exhaust.

The difference between your car and Andrew's is that he has no cats and has the Z06 exhaust with the bigger air cleaner. I would say its consistent. The cam/heads combo very much likes the LG headers.

This same cam makes 430 with stock heads and intake on an LS2 and makes near 460 with the FAST on stock heads. I think a trick flow 225 with the FAST would match the LS3's performance with stock heads and intake. The Trick flow 225 is a better head with the same flow from a smaller 225cc intake runner. It also fit with more compression from being a 13.5 degree head so you can mill it for the great bottom end. The LS3 can be bumped in compression to get it to 11.4 to 11.7:1 but you would have to fly-cut. .030" off the head with a .040" gasket requiring about a .050" cut which isnt deep. Its TQ comes out to be about 455-460rw.

If you want a FAST 102 prepped for your car. I can do a clean-up port to one for $100. All of that money goes to ST Judes Hospital.

Craigster05

I've always said "In Spin We Trust"

SpinMonster

This was the cam I told you would replace your cam a month after we did your H/C swap. It would have made 475-480 on your car with the 4.10's. Your SpinModded heads and the FAST 102 may have done the magic 500.

AndrewZPSU

I'm a happy guy with that spincam too! =)

ALLBlackC6

Spin can you give us some idea of the specs of the cam? I think I saw another thread that said its around 230/234?

SpinMonster

230 intake duration on an XFI lobe .612 lift
234 exhaust duration on an XER lobe .598 lift
114 lobe separation angle
2 degrees advance ground in

Comp cams: call and ask to have a custom cam ground (400 bucks) and give them those specs.

jmt1669

Spin can ask why the exhaust numbers are lower than the intakes at .598?

jackhofmann

Spin,how would this cam work for a 08 ls3 a6,would it be better with a single patteren
like 230/230?

Thanks,
Jack

SpinMonster

The exhaust side uses an XER lobe which has a more aggressive intial ramp rate but less area on the lobe. It actually made less TQ when I used a 236XFI lobe which is likely due to reversion. The final lobe selection was made to occur fast and short to limit overlap and reversion.

Lobe lift is determined by the profile selected. An XFI lobe requires you to use .612 lift on a 230 duration. You dont select the lift value, its predetermined by the type of lobe and duration. If you say a 234 XER lobe, the lift is going to be .598 without saying it.

silvervette05

Hey spin...would you recommend this cam in my ls2 with your ported fast92..same lift being used???

SpinMonster

Yes.

You cant vary lift. Its determined by the lobe profile you pick.....so a 228 XER is always a .588 lift and a 230 XFI is always a .612 lift. They pick it for you based on duration and lobe profile.

I'm not sure if people are getting this point. I got 7 PM's asking me what lift to use with the 230/234 cam....its picked for you already.

Big Turkey

Yes, I actually ordered the cam through Thunder Racing and I said exactly what spin said.

"It's a 230 XFI Intake lobe. 234 XER Exhaust. 114+2 LSA."

I got their cam kit with the new 925 Comp Dual Springs. They are nice, check them out.

Phill25

I love seeing these results!

What springs are reccomended the best?

the compcam 925's?

Patriot golds (p/n?)?

Are the stock valves generally up to the task of the added abuse?

Do most people throw on a new timing chain while you're in there? What is normal for use there?

I am very excited to do this cam!


Thanks all

silvervette05

When i ordered my 220/220 112 cam from thunder for my old truck the lift was 551/551..When my buddy ordered his 220/220 112 cam from texas speed it was 586/586..Is it just the manufacturer that determined the lift.I'm just trying to figure out the basics of all this stuff..LOL..Thanks..