@
shaunm80 ,
Chevrolet Corvette Z06 (C5) '04 550PP - SS
About me:
These are my impressions, opinions and also me driving, so take what you want and throw the rest in the garbage. The reason I do these reviews is that it helps me as tuner to get better by learning the things “to do” and the “not to do”.
I think that anyone who puts out a tune to be reviewed deserves that we be honest with them, it’s the only way that we can help them better themselves at this craft. I think that we all want to get better at this and that we can all use some help from one another to achieve our goals. If you find that I’m to harsh, please tell me.
About the Tests:
All my lap times are shown in total seconds per lap, I use this method because it’s easier to calculate averages and other things. I run 9 laps on a track and keep my best 3 to calculate the average. I do all the testing in the garage test tracks, track grip = low.
I use a PS3 controller all aids off, abs according to tuner.
Circuit da Roma
Just before starting I just want to mention that on your post in this thread you mention SS but in your garage the spec sheet says SM, I went with SS. Also you mention TC1, I prefer not using this unless driving some of the old LMP1 cars. Generally speaking on this track there were no major issues, the only problem came on the last turn before the start line, couldn’t find the the right line/speed, but otherwise the car was steady, the turn in/out are good, the braking, I’ll get back to this later after doing more laps.
Deep Forest
The car has very good traction, the only cause of concern is on the fast u turns at the beginning and at the end of the forest, the stiff suspension skips and though you almost keep your line perfectly I believe that it slows you down quite a bit.
Tsukuba
Now I know what is bothering me, the brake balance when slowing down to 1st gear makes the car go outward, combined with the stiff suspension it becomes hard to take those slow curves fast.
General
Brakes:
I’ve been trying to find a way to test if my brake balance was good, I decided to try this theory on your car to see if it yields the same results as I have had before with some of the tunes I’m working on. With the original BB my time on Tsukuba was AVG= 57.391, BL = 57.202, with the altered BB I did AVG = 57.134, BL = 56.915 . What I usually do is redo these test on a least 3 different tracks to make sure that it is conclusive. The test itself is pretty easy and takes very little time, I went to SPA (weather change), put in the Course Settings, Weather at Race Start = 100%, Surface Water at Race Start = 100%, drive to the starting grid keeping a straight line and while being totally straight brake hard (full), if the car goes to the right or left, change the value of the front or rear and redo the test until the car is straight when you stop. Of course this will change the handling in curves, thus the MLSD decel might have to be readjusted and maybe the spring rate/dampers also. This is an ongoing experiment that I’m doing so the results are not yet conclusive, but so far on a Challenger RT ’70 with standard brakes and abs0 I have got these results.
View attachment 235759 this is the result i got, the test #2 was done using the procedure I just described.
I’m thinking of using Tsukuba Wet instead because I think there may be a slight slope at SPA, but it's a little longer to get to the straightaway. I will also try testing with tires like CH on dry road to see if I get the same results.
Oh, almost forgot, the alternate balance I tried was 3/7, but I did this a little fast, you could maybe try the standard brakes also, see what kind of results you get.
Power:
The sound of the engine is great, I have one question regarding your choice, have you tried other powering up setups?
MLSD:
I’m not sure you should touch this, maybe as last resort if all else fails.
Transmission:
Just wondering, did you decide to use the TC=1 after setting the transmission or before?
Suspension:
Stiff but well balanced, gives you the impression of great traction, I think you did a good job with this, though you may have sacrificed a little turning power with it.
General:
This car will please beginner and intermediate drivers, it may lack speed compared to Bowtie’s tune to compete in expert levels, though much easier to control. I think all those who will try this will like it. I’m a little curious about how other tuners proceed to tuning their cars, do you go by the feel or do you go by the lap times you get? Excellent job, have a good and I hope your studies are going well.
View attachment 235761
I love the shape from the side, the curve of the hood, the short tailed rear end, the C5 just shows what a sexy woman can be in the form of a car
) that could shaved another tenths or two at the very least.
)
Thanks for the reviews you've done, it is much appreciated.
so much to do, so little time.
wham.
, this car doesn’t like this track ( or is it the track that doesn't love this car), you need to make to many steering corrections, the bumps really kick the traction out of this car. I rarely wipe out here, I touched the rumble strip out of the last corner going back to the finish line and totally lost control. To drive efficiently here you have to use quite a bit of throttle control, after a bump it’s best to let go the gas.
, sort of like what you would do to turn with the old Porche’s (RR), fun but not always efficient 
for the out of curve loss of control or the balance of the front/rear suspension spring rates. One of the two needs a little tweaking, I think.
. See you soon 
, he must be gunning for it 
, Average = 1:33.122 on CM,abs0, you’re a pretty good driver my friend 👍, I need more practice with powerful cars on CM, I’m over powering the tires to much
, it’s a little different than what I’m working on now (Schwimmwagen, 2CV, Sambabus, Carol). I tried with CS, abs0, did a little better, Best Lap = 1:28.355, Average 1:28.464. IRL 
I would have probable done 1:45.xxx, I don’t think I would have been too brave with such a powerful beast.
, it is a little gritty on the curves in the forest but not enough to complain, after 3 laps I’m starting to push it off it’s limits and when I do it’s easy to catch it and correct it. On my last 2 laps I went under the 1:23.000, very easy and quite fun to drive here.
You didn’t know you could upgrade the engine? I'll send you the game manual by FedEx.
, yeah really, so I’m going to steal 
I managed a 1:27.8 on Laguna Seca. Feedback is appreciated! 
. Take care 
