• Got the Contributing Memberships stuff finally worked out and made up a thread as a sort of "How-To" to help people figure out how to participate. So if you need help figuring it out, here's the thread you need to take a look at -> http://www.corvetteflorida.com/forums/showthread.php?t=3581 Thank you, everyone! Rich Z.

VIDEO at Idle plus streetability and WOT with my 511rwhp / FTI

miami993c297

miami993c297

New member
The idle completely stabe at 900rpm :

http://www.youtube.com/watch?v=zcRY0g2OHZM

The drivability, I start from a green light and I ended cruising in 6th gear at 1100rpm / 41mph :

http://www.youtube.com/watch?v=PL7h3QvOUFs

Just for the FUN, it was sunny today, temp was 77°, launched a Top Speed, my wife at the camera, we ended at 185 mph:

http://www.youtube.com/watch?v=pYhRh7XZ8Gw

The dyno sheet:

DYNOSESSION.jpg


Christian
 
An update here, in another forum it was asked for the price list, here it is:

Regarding the labor for the Clutch and for the Headers it was executed during warranty operations at the dealership without extra charge...

J&J Performance LABOR :

- Head and Camshaft install----------------------------$1961.00
- Degree Cam / Check PtV Clearence--------------------$318.00
- Wire 90 LS2 TB---------------------------------------$159.00
- Rewire TB again to try fix problem----------------------$424.00
- Install New headers bolts------------------------------$106.00
- Change and install New Lifters---------------------------$53.00
- 2 Hours of dyno plus base line and WB------------------$397.50

TOTAL LABOR at J&J TAXES INCLUDED---------------$3842.50


COMPONENTS OF MY COMBO

HARLAND SHARP ROCKERS Rebuilt--------------$282.00
A&A Alternator Bracket------------------------$110.00
MELLING OIL PUMP Shipped--------------------$232.60
LUCAS INJECTORS-----------------------------$303.90
ADJUSTABLE TIMING CHAIN--------------------$208.80
KATECH ROD BOLTS---------------------------$163.60
SPECH II CLUTCH------------------------------$828.00
LG PRO Long Tube Headers--------------------$1823.85
FAST Intake and LS2 TB prepared--------------$1928.00
2 ETP 215 60cc from FTI-----------------------$2350.00
16 PS4 Valve Spring Upgraded-------------------$100.00
2 COMETIC Head Gasket------------------------$170.00
16 MOREL LIFTERS------------------------------$500.00
16 THREE PIECES PUSH RODS--------------------$185.00
ARP HEAD BOLTS--------------------------------$160.00
1 STREETSWEEPER CAMSHAFT-------------------$450.00

TOTAL PARTS SHIPPED TO MY HOUSE---------$9795.75

Christian
 
Hello all,

An update from today for some of you that are asking about my future time at the drag strip.
As I am not going to race the car immediately here is the following:

As some members are asking me through PM questions on the shape of the power and torque curve of my engine, I am posting below an overlay from the day where I left the car to J&J (11/17/06) and the day where I had my car back (12/27/06).

The general consensus was that there was a probability to lose power down low, in the 3000 rpm to 4000 rpm range...and I was convinced that going to a bigger camshaft and increasing the overlap could only lead to that.
I was lucky with my combo, NO LOSS down low, matching in the zone and some little plus in term of power on the dyno.
The accelerations time are EXACTLY the same on the road between 3000 rpm and 4000 rpm !!! (always monitered the same way of my usual process that most of you are aware of through HP Tuner)

The gain in power are after 4200 rpm but the HUGE GAIN in accelerations is between 4600 rpm and 7100 rpm, ~2 seconds on ~11 seconds....

EXACT ACCELERATION TIME 4 GEAR 100 mph to 153 mph 4600 rpm/7000 rpm:

11-16-06 SD 86 10.55am------:-----11.52sc
02-17-07 SD ETP 15 11.05am--:------9.57sc

May be those acceleration numbers are telling something to the specialist here around.
That is the process used by all the newspapers and racing journalist in Europe to compare the power car to car, no traction or grip parameters induce in the game.

dynocompare.jpg


Christian
 
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EPSN0074.jpg


EPSN0077.jpg


EPSN0079.jpg


A follow-up on the situation.

The Exo-Skel has been match balanced to the OEM ZO6 clutch assembly (12 grammes of correction on the outside circumference) and I am back on ZERO vibration as stock...the inconvenience I was feeling previously between 1800rpm/2200 rpm with the Spec is gone...

The first take off after install was simply horrible, chatter was really strong...
Ok for that and start the break-in process!!!

After two nights of driving in town only stop and start at red lights the pedal release became acceptable and manageable.
I decided to start beating on the clutch progressively with some soft launch always taking time to allow the clutch to cool down between each.
I went harder on the launch as the pedal release was getting more precise and predictable.
After a complete cool down I tried to start the car on a normal driving around town mode...Chatter was almost gone!!!

The bedding in process appears to be a long one with this assembly, the different materials seems just to need time to melt all together, which can be a guaranty of durability...my guess is that it is going to be a better feel and efficiency with the time and use...let me know if I am right?

The pedal travel is really short with all the OEM hydraulic, I am going to use a pedal travel stop/limiter, my thoughts are that pushing on the finger pressure plate all the way is not helping at all and anyway I don't need it to disengage a gear and have it engage smoothly and quickly, do you have any feed back on this?

The pedal stiffness is not "very" different from the one I had with the Spec (a slight more amount from stock) and my wife can (after breaking-in done) drive the car in the traffic without any concerns.

I am nicely surprised how silent this Exo-Skel is in Neutral.
When I push on the pedal and disengage the pressure plate and have the two discs plus the intermediate plate floating the noise is really low for a “race assembly”.

The remote bleeder mounted on the new slave is efficient and after the 3 first days of heat cycles and the first series of hot launches I decided to bleed my system, the OEM liquid had already turn black...which I guess is normal.
Do you have any advice about a nice and efficient clutch fluid to use?

On the tuning side I had to modify the Throttle Follower Decay (P/N) which indicates clearly that inertia is less with the Exo-Skel vs. the Spec Aluminum Flywheel…

Waiting on your comments.
Christian
 
A quick technical Info to answer a question asked on another forum, it may be helpful.

Without revealing the complete tune Jeremy FORMATO did on the dyno to extract those huge numbers for a so small reliable tame / wild engine, here is below how the AFR was set-up on the last pull which was the 8th one:


AFRonDynobyJ.FORMATO.jpg


Christian
 
As a follow up on my engine life after almost one year I am going to duplicate a post from another forum where the question was asked by a member:

Quote:
Originally Posted by ZOHSIX
How many miles have you put on the engine since your rebuild and new found power of 511rwhp? How's it holding up? Any problems?

Hi ZOHSIX,

Since the engine was upgrade and Dynoded to 511 rwhp on December 27th 2006 I drove 4736 miles...and I now realize my business is keeping me away from driving my car...

On the other hand a strong % of those miles are some fun miles...

I have recorded under my HP Tuner log files 142 logs of acceleration similar as this one of this morning (always on a private road ):

DailyUsualaccel.jpg



And I have 14 of those logs that are top speed only (this one is a 185 mph pull) :

TopSpeedasUsual.jpg



In every case the engine is used in its power band from 5500rpm to 7300 rpm (and some abuse to 7500+ rpm...Sorry Ed, but that's so fun!!!) as a daily bases, even when I cruise with my wife I can't prevent to use this engine where he is happy...

Your second question is how it is holding up and the answer is better than ever...seems that the engine is at least as strong as first day out of the dyno...I would say the acceleration time are showing some improvements...and another dyno session will confirm it

Your last question is "any problems"...and yes I had some
TIRES and GEAR BOX and CLUTCH ...but that has been solved on the path .

Other of that, every minutes I am driving this car when I am back to Florida is just pure fun with no worries!!!!

Christian
 
I watched the videos again. Man, that thing sure accelerates QUICKLY! :thumbsup:
 
Suicide King said:
Ooooooooooooooooooooooh, you didn't have your seatbelt on.:hehehe::rofl1::hehehe:
Click to expand...

Hi Suicide King,

good catch...but we were strapped in our harness!!!!!

and on a private road, no way to drive without seat belts around town or on an open road, safety first...

Be safe and have fun
Christian
 
I receive regularly PMs from Members asking about my "track time".

Not always the opportunity, and maybe not the real motivation...

This afternoon I made a short video launching a run on my usual private road in the 77* 70% Florida humidity.
It was pretty sandy and traction is effective in third gear only.

I still love the way my 'small' engine is accelerating on his 3:42 rear dif...

What do you think?



Christian
 
miami993c297 said:
I receive regularly PMs from Members asking about my "track time".

Not always the opportunity, and maybe not the real motivation...

This afternoon I made a short video launching a run on my usual private road in the 77* 70% Florida humidity.
It was pretty sandy and traction is effective in third gear only.

I still love the way my 'small' engine is accelerating on his 3:42 rear dif...

What do you think?



Christian
Click to expand...


nice run,thanks for the video:thumbsup:
 
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