Need a different pulley though. With the 225/70CC heads, I'm only getting 4lbs of boost. We were shooting for 9-10lbs.

Somewhat dissapointed that I have to wait for a pulley, but then again, 502HP/436TQ ain't nothing to sneeze about either.



Looking forward to the right amount of boost, and a retune sometime this week.

I'll shoot some photo's (after I wash it, been sitting in the shop for a week, I'd be embaressed to post photo's of it now).

Rick

 

very nice cant wait to see your numbers with some boost!!

 

Wrong pulley?!?!? Man...well for 4lbs of boost that is nothing to sneeze at. It was nice to meet you today and I look forward to seeing what this thing can do at it's full potential.

Ron

 

Rick

Been looking all evening for this post, great numbers, your 502rwhp translates to 577hp at the crank!!! Great numbers with just 4 lb of boost and the wrong pulley. When it all comes together, look out 600hp

Remember my admonition -- Be Careful

Jeff

PS: Rick cleared the error codes just before he tuned your beast.

 

Most tuners opt for higher compression with the mag, why did you drop it? The bigger heads and CR are probably why the TQ was down. Still good numbers.

 

Why would you want to make an FI motor higher compression??

 

That's pretty sick, Rick!!! Can't wait to see that beast!

 

It's a beauty, I saw it at Roger's the day they completed it.

 

Those are already awsome numbers. Do you have headers already. I would think that headers would really improve your hp and torque numbers, espcially with the larger heads that you have. More volume in needs to have more volume out too.

 

Mods:

RK Sport Hood
B&M Shifter
AFR 225/70cc Heads - Comp Cams double springs, titanium retainers & spring seats
Comp Cam 222/230 - 581/591 - 115 LSA Cam
Dynatech 1 7/7 Headers
GHL Exhaust
Halltech Intake & CAI
Magnacharger

Finally got the car clean enough to shoot photos without being embaressed...















When we were cutting down the FRC's, I was like - "hey, you only need to trim to clear the rear pulley and the FR's - just hack it out and leave "Vette" showing (as opposed to the HP version that chops it down to the "LS2" logo).

Shopdog - stock heads/compression is good for about 7lbs of boost. By going with the bigger heads and less compression (aloong with the cam profile) we figured to flow more and put in 10lbs of boost for better gains. This was in consultation with Mike Norris, LouG and a few others.

This thing just drives right thru Traction Control - you do get a little spin control, but when your're running thru the gears @ redline shift, TC thows a "service error".

Gauges are Autometer Cobalt. I wanna see if I can get those color bulbs into the intstrument cluster - very cool color. New pulley should be in Monday, then off to Orlando for a retune...

Rick

 

I think you're answering SpinMonster on this one, not me. BTW, I agree with you, and your tuners, lower compression and more boost makes more power.

 

Very Nice rick!

 

Great ride, great results, great pics...enjoy it.

 

Love the hood. What are the three gauges? One's boost I'm sure - the others?

 

Boost, Fuel Pressure, Exhaust Gas Temp. I wanted to do an A/F gauge, but it was suggested by a number of friends with FI that EGT was more important to monitor than A/F. The boost (what little there is right now) all comes in at once. Kinda sounds like the MadMax car, with the whine and all. I'm told it's even noisier outside the cabin. Interesting as the "whine" is there even at lower throttle/higher RPM positions, even though the meter is not showing it boosting. The sound through the GHL's is magnificent (I already was getting an average of 3 people a day asking me what exhaust I was running). The lope is barely noticable. One of my neighbors runs a blown/sprayed Camaro, and he was pretty damn impressed when he went for a ride yesterday.

I'm reserving judgement on the whole package until the correct pulley is on, and a in-depth tune is done (versus the real basic one I'm running now). But so far, I'm REAL IMPRESSED. I need to start looking at tires/suspension, or maybe a couple of hundred lbs of sandbags in the back to help with the launch. I can only imagine how hard it's gonna be to "stick" with more HP/TQ. Heads/Cam difference aside, you wouldn't know the car had FI until you nail the pedal. Way cool in 3rd & 4th when you nail it. The C6 is very deceptive to begin with, speed-wise because of the ride quality. 70-120 gets there in a blur now.

The hood is SO SUBTLE, especially on a black car (versus the other hoods). I was waiting to see if Mag came out with a low profile blower kit, because I was really not liking the other hoods I saw. Soon as the photo's of the RK hood were posted, I went into Horsepower to talk to Roger. "uh hey, have you seen the RK hood?" We went over some numbers, and I said "let me sleep on it". I came in the next day with a deposit check and told Roger to order everything, and he said; "I saw the look in your eyes when you walked out yesterday, and already ordered everything". You really have to know what you're looking at, to tell it's a blower hood. It's faithful to the lines of the car (which I loathe to change, as it's one of the sexiest cars on the road today IMO), and even accentuates them some. The fit is pretty on, though it could be a little stiffer laterally, as sometimes one side doesn't close as well as the stock does.

As I've suggested in alot of other threads, you plan your mods based on where you want to end up. Everything I've done prior to this was with the intention of putting some kind of roots-type FI in - which was why I waited on the heads/cam - the setup I was planning for them would not have run correctly without boost. Financially, I wish I could have done this more gradually (instead of taking a $13K hit in one shot), but this is the way it worked out.

Still haven't run into a Cobra or Viper to spank yet, and the rice-kids aren't even worth the time. Also waiting to cause major depression in the first C6/Z06 owner I run into.

Yeah ShopDog, I meant Spin.

/ramble off

Rick

 

Rick

Does look better "cleaned up."

The side shot of your car with the hood down does show the difference between the stock C6 hood and your RK hood, but one does have to know what they are looking at to understand the difference.

Anyway, you have built a beast and I cannot wait to see the numbers once you have everything in place.

Jeff

 

Not all FI needs drop in compression.

East Coast Supercharging's Chris told me long ago that the mag's love higher compression (10.7). So if an ATI running up to 8 pounds boost is fine with 10.9 why wouldnt this S/C?? Now if you actually are able to get to 10 pounds boost which many have not with the mag, a small drop is good but not if you have a 10.3 from static and another 1/2 point from the cam; Rick changed the cam to a bigger one which also drops dynamic compression. The combo of head chamber size, cam compression loss and the heads lower low-lift numbers makes this combo less than optimum for TQ. Putting in thinner head gaskets to gain compression back and lessen the quench distance would pick up a lot of the lost TQ with zero issues if you are only able to get 7-8 pounds ultimately.

You are also running 11.7:1 a/f ratio in the power peak areas on a 4 pound boost. This car has 40 rwtq hiding in compression and tuning. I wouldnt run it that rich with any boost under 10 pounds. You have a typo on the TQ numbers its 456 not 436. The higer boost and retune should prove interesting....nothing wrong with being safe. Is that what you intended?

I'm curious how it drives. I hear that the mag's are N/A like with the early boost. When is it at the full 4 pound boost rpm wise? Did the installer state how he got such a different amount of boost from what he expected?

 

Very nice Rick Can't wait to see the new higher boost numbers Mike comes up with..... Now get some slicks for her and meet us at the track. Forgot to add.... Vince Stella has a ZO6, maybe you can talk him into a track run against you.
Bob

 

Size of the heads, and the fact that Mag sets these up for a stock head config were the reason for the low boost #'s. The intent was a Daily Driver/Snake Killer - mild mannered until you punch the gas. We figured to get better #'s, coupled with all-around driveability by going with less compression/more boost.

Boost comes on IMMEDIATELY when you WOT, but otherwise drives like a "semi-normal" mildly mod'd car when you're not getting on it. Due to the audiable whine I think I'm getting some boost at higher RPM's in low/mid throttle position, even though gauge is still showing me in vacuum. As said earlier in the thread, I'm not going to pass any judgements on overall driveability due to the fact that we didn't spend the requisite amount of time to REALLY tune the entire RPM range fuel/timing maps, because we're just going to have to start from scratch with the new pulley. There are some things that I'm not pleased with right now, but it would be unfair to comment on them, as it's an incomplete tune. Other than having to pay attention when punching it in 1st & 2nd, upper gears seem to run similar, just a helluvalot faster. 80-120 in 4th is SUPER QUICK. The lower RPM ranges are not tuned well right now, but I expect them to be more than satisfactory when we're done.

I'm only the bleeding edge right now, as there aren't really that many installed C6 Mags out there right now - and certainly not any with this head/cam setup.

Rick

 

The hood looks great to me. I think most of us would recognize it as a blower hood, but you're right, to the general public, it might go unnoticed.

With regards to the $, can you estimate how much of that was blower / hood / blower installation? I'd consider doing just this.

Any chance you can make it to the tower shops this Friday? We should have a pretty good turnout. I'm sure everyone would love to see the car, and you for that matter .

Here's the tower shop thread:
http://forums.corvetteforum.com/show...82&forum_id=74