Dynamometer Results & Comparisons - 01 z06 dyno result good/bad?

My car is a 01 z06, went to the dyno Friday and made 429.7/387.3.

Mods are
Thunder Racing RapTR cam(236/242 - .615/.615 - 111 lsa)
Milled TEA 220cc heads
LG Longtubes with O/R X
SLP loudmouth
Dual air intake

The tuner said the stock injectors are maxed out now but this all he could get out of it. I personally wanted 440+ but thats just me.

http://i1235.photobucket.com/albums/ff428/z0qwik/2012-05-14_19-05-33_213.jpg

Reasonable for you to expect 440+, but still a good amount of power. Go get some track numbers and compare. Could be a stingy dyno, never know.

My stock injectors are maxed out, too, but if the car is getting enough fuel to make max power it's irrelevant. Unless the car is running lean and detonating causing a loss of power of course.

Id be disappointed. G5X3 cam only in a LS6 is 430rwhp all day long. Lts & bolt ons only. Stock heads & LS6 intake.

Reasonable for you to expect 440+, but still a good amount of power. Go get some track numbers and compare. Could be a stingy dyno, never know.

My stock injectors are maxed out, too, but if the car is getting enough fuel to make max power it's irrelevant. Unless the car is running lean and detonating causing a loss of power of course.


Maybe goin to the track Friday and will see how it does but every dyno is different but i dont think it would be that different.

Id be disappointed. G5X3 cam only in a LS6 is 430rwhp all day long. Lts & bolt ons only. Stock heads & LS6 intake.

Thanks for adding to the insult lol jk its cool but yea i was disappointed to, makes me consider changing the cam now since i didnt when i pulled the heads(car came with this cam)

so why haven't you bought new injectors if you're disappointed with the result?

Thanks for adding to the insult lol jk its cool but yea i was disappointed to, makes me consider changing the cam now since i didnt when i pulled the heads(car came with this cam)

Are those the TFS "as cast" 220 heads? What did TEA do them?
Id be more concerned with the heads over the cam your using. Basically It looks to me that those heads arent much better than the stock LS6 heads.

Im suprised your injectors are maxed out. Mikey from Rapid Motorsports tuned my first H/C setup using stock injectors and I made 430/400 and then I installed better heads, G5X3 cam, & a 90/90 Fast and made 455/413 using the stock injectors. Never had an inssue. The car ran great.

so why haven't you bought new injectors if you're disappointed with the result?

I didn't think the stock injectors would max out already but since I just found out they are I will buy new ones now.

Are those the TFS "as cast" 220 heads? What did TEA do them? Id be more concerned with the heads over the cam your using. Basically It looks to me that those heads arent much better than the stock LS6 heads.

Im suprised your injectors are maxed out. Mikey from Rapid Motorsports tuned my first H/C setup using stock injectors and I made 430/400 and then I installed better heads, G5X3 cam, & a 90/90 Fast and made 455/413 using the stock injectors. Never had an inssue. The car ran great.

They are the 220cc as cast and I don't remember what Kevin at Vengeance had the heads milled to off the top of my head. I heard they flow pretty good compared to the 215s and that they were close to the same #s. I too am surprised they are maxed out.

I wouldn't be disappointed. At the end of the day, it's the seat of your pants power that makes you smile from ear to ear. Is it fun? Is the tune smooth?

I went for a ride in my buddies old fox body that was 500rwhp. It sucked. My old GTO @ 365hp could keep up easily. The car just didn't "pull" because the timing was not ideal.

But then again, I bet it's either one of two things:

1) You've got a bottleneck somewhere
2) The cam isn't well-matched with the heads

Dynojet?
Very low numbers IMO you should make those numbers with the stock 243 heads maybe even more.

Any graph? Do you know the injectors duty cycle?

Dynojet?
Very low numbers IMO you should make those numbers with the stock 243 heads maybe even more.


I 100% agree.

For what its worth my 01 z06 dynoed 420rwhp with the tsunami cam only, 235/240 .649/.610, and with the addition of the PRC 220 as cast head the car picked up right at 30rwhp to make 450 at the tire. I think the cam size is ok, seems like something might be up with the heads.

Strikes me a little odd that the injectors are maxed out @ that power level, should not be. So what defines max'd out with your dyno operator? If the injector's are the correct ones & you are near 100% duty then the power indicated might be low depending on the dyno type.

If your dyno guy has run a C6 Z06 ask what those numbers report just as a comparison.

When I run on the dyno I data log such things as the MAF g/sec, cannot change the amount of air going thru the MAF, Dynamic Cylinder air & Torque Delivered.These are sanity checks for me when trying to verify & compare dyno's. These are in addition to the normal things such as AFR, Timing, Temps etc.

Anyways the condensed version if your burning fuel your making power, no fuel no power, correct AFR of course.

For what its worth my 01 z06 dynoed 420rwhp with the tsunami cam only, 235/240 .649/.610, and with the addition of the PRC 220 as cast head the car picked up right at 30rwhp to make 450 at the tire. I think the cam size is ok, seems like something might be up with the heads.

My 02Z made 420whrp with the same Tsunami cam no heads and no intake. Was hoping for more than 450 with a set of PRC LS6 stage 2.5s....

To the OP your numbers definitely seem low, when I did my cam job I up graded my injectors so that and your heads might be the issues

For what its worth my 01 z06 dynoed 420rwhp with the tsunami cam only, 235/240 .649/.610, and with the addition of the PRC 220 as cast head the car picked up right at 30rwhp to make 450 at the tire. I think the cam size is ok, seems like something might be up with the heads.

LOL :jest:

OP, I would put some injectors in the car and go have it retuned. I've done quite a few setup's similar to yours and the stock injectors max out fairly easily with a decent size cam on a set of stock 243's. Usually baby cam's and ported heads will max injector's pretty quickly. My Formula for instance has the same injectors and fuel pressure and when it was cam and headers only my injectors were running 98% DC. So with that said I would def get some injectors and make sure fueling is good up top. I would almost bet the tuner limited RPM to keep from going lean.

I'd be disappointed too...an LS1 with 241 heads and smaller cam put down just as much power:

http://ls1tech.com/forums/dynamometer-results-comparisons/1264167-spartan-228-232-cam-stock-241s-ls6-intake-424-396-a.html

Now granted that could be a different dyno and the weather could vary, but still.

If the car made 440 with an ls6 intake you would be hearing "nice numbers "etc.You are basically 10 hp short of that.Don't get caught up in dyno numbers and internet expert opinions .

I wouldn't let the dyno dissapoint me. That's just numbers and they are very respectable. I would only be concerned if it wasn't over 400 lol.

I am more surprised at the people saying the injectors should be fine...

I had 94% DC on stock 28# injectors with bolt ons and a 230/224 cam. Once I went to 243s and 230/238 cam I was getting over 100% DC by 4800rpm.

Why would you buy heads when you could have had the 243's CNC ported and made at least the same power??

For a cam that big, how does the torque look?

Why would you buy heads when you could have had the 243's CNC ported and made at least the same power??

What would you rather have? A $1100 pair of TFS220 ($1600 heads - $500 for selling 243s) or a set of ported 243s for the same price?

What would you rather have? A $1100 pair of TFS220 ($1600 heads - $500 for selling 243s) or a set of ported 243s for the same price?

He already had the 243's. There is no advantage IMO to the TFS as cast VS the 243 CNC'd.

995$ for AI to port your 243 castings. 1600 is a lot lol I paid 350 for my 243 's and ended out total after springs, retainers, ect. 1500. Due to rebuilding them and two bent exhaust valves.

995$ for AI to port your 243 castings. 1600 is a lot lol I paid 350 for my 243 's and ended out total after springs, retainers, ect. 1500. Due to rebuilding them and two bent exhaust valves.

So, are you into just saying you have some TFS heads or what?

Ai in the dyno section makes damn good power with the 243 head with it's 226 CC port.

Have seen 450+ with a small cam on a stock bottom end pretty regular.

Open the hood, looks like a stock LS6 with a cam.....ummm yeh, thats the look I want.

You have to buy springs anyway, for either head. So if ya already have the heads(the OP had a Z06) I would damn sure have them CNC ported by Ai.

The 243 head is a known quantity, rocker arms and geometry all work as factory intended.

241 head, almost 440rwhp

http://ls1tech.com/forums/dynamometer-results-comparisons/1531973-advanced-induction-hcr-241s-dyno-results.html

243 head auto car

http://ls1tech.com/forums/dynamometer-results-comparisons/1523143-advanced-induction-h-c-i-a4-dyno-results.html

243 head

http://ls1tech.com/forums/dynamometer-results-comparisons/1404783-advanced-induction-243-cnc-port-gains-49hp-32tq-5-tenths-5mph.html

5.3 head

http://ls1tech.com/forums/dynamometer-results-comparisons/1453671-back-back-dyno-test-pi-215-s-ai-cnc-d-gm-5-3-a.html

Ai makes good power, Unless you are building a stroker engine in need of a head bigger than 226cc I don't see the need for an aftermarket head, I like the stock look when you open the hood instead of a company name blazed on your heads. Then getting smoked by a car you think has stock heads on it.

But that's just me.

OK uploaded the dyno sheet(sorry for the bad quality)

Been away for awhile but thanks everyone for the replies and info. Start off bought the car with the cam in it on corvetteforum and told it made 410/380 w/cam. Dynoed it and it made 370/? and they did a leak down test failed etc etc tuner said two cracked pistons?? ok I recently had a shop pull the motor and cheack everything out and everything looked good on the bottom end he said but while the heads were off i went with the as cast heads which i seen good results and vengeance racing stood by them so i bought em. You all see what it makes now so basically i will probably just do a cam swap/+ injectors and see how it goes from there. Any cam advice i will take but i am leaning towards a vengeance cam and having them tune it since i dont trust many shops around my town. As for the people who say get some track results i went 2weeks ago

60ft-2.25
1/8-8.36
1/8 MPH-91.97
1/4-12.54
1/4 MPH-117.68

OK uploaded the dyno sheet(sorry for the bad quality)

Been away for awhile but thanks everyone for the replies and info. Start off bought the car with the cam in it on corvetteforum and told it made 410/380 w/cam. Dynoed it and it made 370/? and they did a leak down test failed etc etc tuner said two cracked pistons?? ok I recently had a shop pull the motor and cheack everything out and everything looked good on the bottom end he said but while the heads were off i went with the as cast heads which i seen good results and vengeance racing stood by them so i bought em. You all see what it makes now so basically i will probably just do a cam swap/+ injectors and see how it goes from there. Any cam advice i will take but i am leaning towards a vengeance cam and having them tune it since i dont trust many shops around my town. As for the people who say get some track results i went 2weeks ago

60ft-2.25
1/8-8.36
1/8 MPH-91.97
1/4-12.54
1/4 MPH-117.68

Most cars like yours make 370 with headers, intake and tune.

So I dont know whats up, but something is.

Yea and i had the motor pulled and the bottom end is good, brand new heads and etc parts, so all that is left it seems is change the cam so we'll see. Also i plan on putting on a vararam intake(maybe the dual cone is causing a problem) and injectors. Def a money pit here its turning into.

I would put an EPS cam in it.

You should be trapping 95-97mph in the 1/8th. The shitty 60' should actually help mph if its due to spinning. I know that sounds weird, just trust me.

Anyway, my cam only M6 99 Camaro trapped 93 with an MS3 cam. My buddies 01 SS traps 93 with his el torro cam and he is an automatic. Both cars ran this in 1500 - 2400 DA. You are not making the power you should be.

I would put an EPS cam in it.

Imma make some calls tomm but with vengeance tuning my car this time and everything i figure they can tune and know hoow to get the power out of their own cams.

You should be trapping 95-97mph in the 1/8th. The shitty 60' should actually help mph if its due to spinning. I know that sounds weird, just trust me.

Anyway, my cam only M6 99 Camaro trapped 93 with an MS3 cam. My buddies 01 SS traps 93 with his el torro cam and he is an automatic. Both cars ran this in 1500 - 2400 DA. You are not making the power you should be.


No real traction issue just more of not launching and not enough gear for the shitty 60' IMO and yea not the best mph. Yea hopefully a new cam and another inspection of the motor can put me in the numbers i want to see.

[QUOTE=z0qwik;16316087]Imma make some calls tomm but with vengeance tuning my car this time and everything i figure they can tune and know hoow to get the power out of their own cams.



It has nothing to do with "if they can get the power out of their own cam's" or not.

The EPS cam is proven, poke around.

Imma make some calls tomm but with vengeance tuning my car this time and everything i figure they can tune and know hoow to get the power out of their own cams.



No real traction issue just more of not launching and not enough gear for the shitty 60' IMO and yea not the best mph. Yea hopefully a new cam and another inspection of the motor can put me in the numbers i want to see.if your injectors are maxed out,you might not be able to run the timing needed for max power,due to not getting enough fuel.what's your advance at WOT?everybody giving advice means well,but i wouldn't change a damn thing until you get the injector issue fixed.if their maxed out now,they'll be maxed out with a new cam.looks like you have some good parts,just have to dial the engine in..

The small EPS cam has it's place but IMO if you want track results go with something bigger unless you want to race the dyno. My cam only full weight formula has some good results with a decent size cam. 235/243 112+2 LSL lobes. I would recommend going with a softer exhaust lobe though cause the LSL is just a waste and on the aggressive side for the exhaust side. Probably do something like the extreme rpm hi-lift lobe on the exhaust side. Anyway enough rambling, mine has been 7.19@95 in the 1/8 and 11.39@120 in the quarter and it's an Auto car which obviously aren't known for trapping that well.

The small EPS cam has it's place but IMO if you want track results go with something bigger unless you want to race the dyno. My cam only full weight formula has some good results with a decent size cam. 235/243 112+2 LSL lobes. I would recommend going with a softer exhaust lobe though cause the LSL is just a waste and on the aggressive side for the exhaust side. Probably do something like the extreme rpm hi-lift lobe on the exhaust side. Anyway enough rambling, mine has been 7.19@95 in the 1/8 and 11.39@120 in the quarter and it's an Auto car which obviously aren't known for trapping that well.

What was the DA when you ran that 7.19?

That track outing was around 1400'. Since then it's run 7.24 at over 2000' DA.

You should be trapping 95-97mph in the 1/8th. The shitty 60' should actually help mph if its due to spinning. I know that sounds weird, just trust me.

Anyway, my cam only M6 99 Camaro trapped 93 with an MS3 cam. My buddies 01 SS traps 93 with his el torro cam and he is an automatic. Both cars ran this in 1500 - 2400 DA. You are not making the power you should be.

spinning doesn't help mph. Sometimes a manual car will lose mph with a sticky tire is from a bog at launch. Bogging kills mph, but the extra traction ends up helping the e/t. If the car is geared well enough to not bog on a sticky tire, it will gain some mph too. His car is still off, but with better traction, he'll gain mph and e/t.

Here is my opinion. I want to say the 01 Z06's had smaller injectors than the 02+ but I could be wrong. If I were you I would keep your cam, and for the same money your gonna spend on a cam swap buy a FAST intake and TB, new injectors and retune it. You will prob make over 450 and if you want a bit more do a waterpump, cutouts, port the fast ect. But untill u learn to drive you will never be happy, my z06 ran 11.70's @ 122 with 415rwhp and 2.0 60fts years ago, you should be running 11.50's as is at well over 120mph. Keep building on your current setup it has good potential with tons of stuff u can still do to get more power.