Muuhaha

I'm trying to gauge how bad it's going to be after I finish my ECS install as far as traction and the need for new tires. I'm not set on a specific HP yet, but I'm looking to keep the car streetable and still have fun.

So questions:

Is there a HP level that is considered good/perfect for the street? (Opinions welcome)

When do stock tires become useless? And I don't mean flooring it in first, because stock this car can break them loose doing that.

Thanks for any input!

Higgs Boson

2000 rwhp flooring it in 7th

jim2092

I think Higgs is trying to tell you that it depends totally on tires and how you drive it. Both unknown to your audience.

C7-Beast

I'm making 696 RWHP/613 ft lbs tq. I have an M7 and I get no traction in first if I go more than 1/2 throttle. I typically short shift first. It will grab at the top of first, burn 2nd for a second and pulls like a freight train through 2nd. It will chirp 3rd when using NLS.

Stock tires.

LSRX

I am having problems with the stock horsepower level, especially when it is about mid 50s outside!
This car should have come with 305s in the rear at least with the Z51. 285s in the C7 v.s. 275s in the C5 with 100 more horsepower and torque and only a 10mm difference in tire width??

Muuhaha

Lol I got that -- that's why I put stock tires and street driving as a parameter. I don't want to get on the highway entry ramp in 2nd and spin only using light throttle --

Muuhaha

Z51 or base rims? Good info --

TennisFreak

Traction sux ***** for the vette.

Its why the Z06 has not gotten rave reviews. It puts down too much power for how much the grip the car has.

NoOne

Um do you own a C7 with a decent amount of power?


Traction is unreal considering the bicycle tires they put on the back. At 535rwhp with an ECS kit I could not believe how much traction there was. If I rolled out in 1st I could get it to hook in decent weather. 2nd gear on it was awesome.


With meth and 645rwhp 1st gear is pretty slippery. 2nd gear can be hit or miss. Anything under 65 degree's if your at more than 1/2 throttle your driving on ice under 70mph.


This was on stock ZP's with 13,000 to 23,000 miles on them.


I'm going to goto 295 Cup tires and think I should be good based on my experience.

TennisFreak

I own a c7 z51 and yeah even with its 460 hp it has a hard time with grip on launch and if it's below 70 it will break loose in 2nd too.

NoOne

Then there is something wrong with your car or your driving style.


The last thing I have heard any C7 owner complain about is traction. I figured after the ECS kit the car was going to be a mess in 1st and 2nd.


It took me 13 days to get the meth installed. 2 days of amazed how much traction there was, 7 day for the kit to arrive and the rest to install/tune. The only reason I did not put the meth on from the start was concerns about traction.


The traction is so good that I've let a lot of people drive my car without a single worry about them getting into trouble due to power/traction issue.


This is on tires that have had a hard life too.


I will say there was a time in the tire life where they seemed to give up, but came back. Under 5,000 miles they were amazing. From 5000 to about 7000 they seemed to dip, but then came right back.

C7-Beast

z51

jim2092

Excuse me. Could you run that part about "not gotten rave reviews" by me again?

Patrick Runge

Yea I've not heard a single Z06 owner say they didn't LOVE their car. Guess there is always that guy who thought he was buying a Prius and got duped into a Z06 instead.

C7-Beast

Can you provide your source, please?

There have been complaints of overheating on the track but other than that, all article I have read RAVE about the Z06 performance. I don't own a Z06 so can't tell you how much traction but with almost 700, I can get traction except full throttle off the line.

Muuhaha

So if you did it again, you would go with meth from the start and never look back?

NoOne

In my case, no.


Reason was that the shop only charged me $100 for the retune. So the labor and material charge was the same either way.


So for $100 it was nice to get used to the car, see how it reacted, etc...


I was surprised how cheap it was to retune. Most shops would have charged a normal tune charge in which case I would it from the get go.

TennisFreak

Look in not trying to say the Z06 is a terrible car but it does have more power than the traction it offers can handle.

Read/watch this motor trend shootout and they directly address and complain about it.
http://www.motortrend.com/news/2016-...he-911-gt3-rs/

There have been other reviews that mention it as well.

Muuhaha

Good deal -- I was going to go no meth this summer and do meth next winter just to have something to do, but didn't want to pay full price to retune. I guess I should ask my tuner what price I'd be looking at to see if it's worth it.

Not to ask an obvious question, but clearly you found the higher HP more enjoyable? It wasn't overkill or made driving it a hassle ...?

Motohead279

I have had my car at almost every power level you can, started with a simple ECS1500 kit at around 600rwhp and am now at close to 1400rwhp.

My car was the most fun at the 650rwhp mark. I had an ECS1500 kit (8 PSI) with a single nozzle meth kit. Stock tires were useless and I had Toyo 88s on there (315 rear on a Forgeline Wheel) The car hooked up very well, although you could still spin it in 1st and 2nd if you wanted. But for the most part the car tracked really well and just hauled ***. Once you start getting into any more power than that you need to be looking at drag radials if you really want to hook.

If you want the perfect street car I would stay stick under the 650 range with a good sticky tire.

If you do a supercharger I would definitely do a meth kit. Not really just for a few hp, but more as a safety precaution.