SharkbyteLT4

Just wondering who has the highest one and what mods did it take to get you there.


I been following the modified ZL1 threads and it appears they respond better to mods than the Z06 does for whatever reason. There is one with a cam, pulley, full exhaust, e85, and meth pushing 770rwhp. I think the highest Z06 I have seen with basically the same mods only pushed 720rwhp. WTF???

ajrothm

The same shop that built the 771rwhp ZL1 (HHP) also has a head/cam/ported blower/E85/meth/full bolt on C7Z A8 that made 750 rwhp. That car ran 9.60@141 with full sized wheels all around.

There is quite a few in the 730-750 rwhp range, but yet I agree it seems the ZL1s are making the same or more power with way less mods, it also seems that their fuel systems support more power as well for some reason, even though it's supposed to be the same stuff. KP racing here locally also has a ZL1 that made 778rwhp, that car ran 10.30@138 on stock tires with a stick.


Pretty interesting for sure. I think when the A10 DCT trans comes out in the ZL1 and the cars are modded, there is gonna be a lot of Z06 owners with hurt feelings.

SLOW06!

Sub.

NicD

I would suggest taking any posted dyno numbers with not just a grain of salt but a full shaker of it. In this game dyno numbers sell parts and many dynos are a lot happier than others if you know what I mean.

For example, my car trapped 136 mph in a whopping 4800 ft DA and it made 600 rwhp corrected on a standard dynojet. If I were to add more parts and make another 150 rwhp but only go 5 mph faster than something went wrong because I should have picked up a LOT more mph than that... unless I didn't actually make another 150 rwhp.

Dfwz06

Different days on the dyno. Different octane level of fuel. Tolerance in the build of the engine. There's a ton of things that make differences. I would never worry bout the hp numbers a camaro puts out. If I wanted a bigger car with a backseat, I'd buy a GTR. I don't think any bolt on zl1 will outrun me and if it does, oh well.

HPT

Yes, we all know that different cars, on different dynos, on different days, with the moon at a different phase, running on fuel that was refined from a different barrel of oil will produce different results. And, yes, dynos should only be used as tool to measure change as the outright numbers on their own are meaningless. Thanks.

That said, I've made the same observation as ajrothm...ZL1s making more power with equivalent or fewer mods and a seemingly more robust fuel system. It's one thing to highlight a single example where the difference in RWHP is marginal and think it's news worthy. It's another when there is a clear, repeated pattern. The "different dyno" excuses only go so far.

Funny thing is, when I mentioned HHP's ZL1 in another thread raising a question of the ZL1 fuel system, some old fart tried to teach me about dynos.

Mick14

Maybe the 10 speed tranny puts it to the ground with less hp loss?

Dfwz06

Well I'm only 40 less then the one the OP mentioned and I'm on stock cam and stock exhaust, so I'm sure all things being equal on the dyno I'd be right at those same numbers. It's silly to get caught up on dyno numbers. When a ZL1 outruns a Z06 with same mods, I'll admit something is up, but not till then!

ajrothm

Both of then 770+HP ZL1s are 6spd manuals. A10s haven't even been release in production cars yet.

They will be here in April tho...I think heads are gonna roll when the A10 cars hit the streets with bolt ons/e85.

I do agree with Nic tho, dynos are used to sell parts, tunes, garner business, so I wouldn't put too much stock in the numbers but....when comparing our local dynos to trap speeds, I typically know which shop's dyno numbers translate to MPH at the track

HHP and KP Racing's dynos are definitely on the happy end of the spectrum, as is LMRs. G Force's dyno correlates pretty well to trap speed at Royal Purple Raceway. AMPs dyno up in Dallas is one of the happiest reading dynos of them all.

As for HP to mph, stick cars will never show the mph at the track. A 700rwhp auto will typically trap the same as a 800rwhp stick car at the same weight, unless the stick car is set up really well and the driver can really drive it.

Renocorvette

I just dynoed 849whp on my 16 A8 stock supercharger with cam, heads,pulley, intake, headers, 18% pulley, 100 shot and 100 oct. 769whp on 91oct and 100 shot and 719whp on just E50 no nitrous

0Cajun @ Edgyvette

Formato made 714/720 on stock blower with bolt ons only and went nearly 140mph in the quarter with an M7. We offer the same package, without thermal plates, for about $4200 installed and tuned

Cordes Performance Racing

I love the dyno games!

0Terry@BMS

Isn't the ZL1 blower a 1.9 vs. our 1.7?

CFHay

Vengeance made 787RWHP/812RWTQ on their shop car.

four0nefive

Here's referring to the 6th Gen ZL1, which has the same LT4 as the C7Z.

WuTang

I heard Jeremy Formato made somewhere around low 800 wheel with ported stock blower, heads, cam and bolt ons.

ScGRaceR

Clarkson voice "Some say. when his iat 2 is unplugged the car makes 850+ in 98 degree swfl swamp air"

ALL WE KNOW IS.

the corvette forum is full of dyno experience.

SharkbyteLT4

forgot about that one, but that car has a huge stage 3 cam it along with ported heads,full bot-ons,meth,flex fuel... Modded to the hilt!!!

SharkbyteLT4

OP here,

A few of you agree to me that the ZL1 seems to respond better to mods than our Z06. Throw the dyno game out of the window, because I compared the two cars done at the same shop. From my perspective, it takes a stage 3 cam with all the goods to go with it to match with this ZL1 is doing.

I am not in arms in fear that a ZL1 is going to smoke me, just make a observation. I don't know if they are able to maintain more maximum HP due to its far superior cooling system over the Z06. The Zl1 has a crapload of heat exchangers on it. If it has a better fueling system than a Z06, then that might be a fueling solution for those who want to run more E85 in their cars

NicD

What I find more interesting is that the ZL1's torque model in the tune is quite a bit different than the Z06's, it's lower pretty much all over. They also have different cam timing tables as well, quit a bit different from 3800 to 5200 and down low. Normally rolling the cam back that far down low would be bleeding off cylinder pressure and having it advanced like that in the midrange tells me maybe it's a bit larger?