10 Second Club - My Z-28 Sleeper breaks into 10's (vid)

After working on my baby for a few years trying to create the perfect sleeper, it was finally accomplished. This car is my daily driver!.This feat was done by the help of two mods on this board Patrick G. and Kurt Decker. Latest rendition was a 383 Stroker bottom end built by HK Racing in Houston and top end design specs by Patrick G.. These guys are the best. They have seen this car progress from a low 13 sec. car and helped it to become what it is now.

Here is the time slip required for change to the 10 sec club:
http://i78.photobucket.com/albums/j90/jitsumania/DSC01253-1.jpg

Here is a vid of a few of the kills that night as well. A few of the victims were a Roush 427 Mustang, a Z06, and some others. Some runs were all motor passes and 10 sec passes on 125 shot. Enjoy

http://www.youtube.com/watch?v=wVCk2uzX00I

that's badass! that with a 10 bolt..damn.

Thanks, had to rebuild it about 2 years ago after I grenaded the stock unit and has been holding up till now****fingers crossed****.

Shit! Through a 10 bolt?! Wowza. Bad ass ride. How is it on the street.

Get a new camera man, though. Gah. Worst I think I've ever seen! :lol:

Major props Rick. Your Z was flying Wednesday night.

Shit! Through a 10 bolt?! Wowza. Bad ass ride. How is it on the street.

Get a new camera man, though. Gah. Worst I think I've ever seen! :lol:


Thanks. The car is awesome on the street. It is exactly what I wanted to build from the beginning. A good balance between street and strip. I think I wanna be buried in this ride when I kick the bucket :nod: but I don't think the wife will allow it:D.

Nice times. M6 or A4?

Nice times. M6 or A4?

A4 Perfomabuilt level 2 tranny. That thing hits hard at WOT.

congrats thats moving :)

What rpm are you shifting at?

mid/low 11s? you got cam and heads on that 383?

Shift points are set by tuner (Patrick G.) at 6900 for the 1-2 and 2-3 then 6800 at the 3-4 .

This is what top end looks like:


Heads/ Intake/ Throttle Body:
Airflow Research (AFR) 205cc heads, CNC ported. Heads hand finished by Tony Mamo to increase combustion chamber size to 4.00" bore which further unshrouded the valves. Valve job was modified to increase flow at low and mid lifts., Heads were milled .060" yielding a combustion chamber volume of 57cc. Static compression ratio of 11.92 to 1. 2.02 intake valves with lightweight hollow stems (98 grams each), 1.60 exhaust valves. Double quench paambers.
AFR #8019 valve springs shimmed to within .050" of coil bind. 170 seat pressure, 450 open pressure. 1.775" inst
AFR 205 flow in milled form with 57cc on a 3.900 bore at 28" H2O:
Lift........ .200", .300", .400", .500", .550", .600"
Intake.....158, 220, 264, 285, 296, 300
Exhaust 122., 178, 217, 232, N/A, 241 (with pipe)
Cometic .041" head gaskets to give a .031" quench.
Custom Comp Cams camshaft: 3729R/3731R HR 112 +3
238/242 duration at .050, .605/.610 lift, 112 LSA installed at 109 intake centerline. Dynamic compression of 8.86 to 1.
Comp Cams 7.400" chrome-moly pushrods to accommodate the milled heads and smaller base circle of the cam.
Yella Terra Ultra Light #6645 shaft mounted rocker arms (with .050" shim installed).
Comp R (875-16) hydraulic roller lifters with .035-.050" plunger depth. 3/8 to 1/2 turn of the rocker bolt from 0 lash until 22 lb. ft. of torque.
SLP Cold Air Flow Pac
Motorsport Technology Inc. (MTI) carbon fiber intake lid with K&N filter.
FAST 90 Intake, velocity ported by Tony Mamo from Airflow Research. This porting has been shown to be worth 7-10 rwhp/rwtq over an unported FAST intake.
Nick Williams 90mm custom throttle body
Custom 4" bellows mates air lid to throttle body. No Mass Airflow Sensor.
Speed Density tuned by our very own Patrick G

This top end was specked by and built for Patrick G. and initially was in his monster TA. YEAH BABY!!!

Patrick can squeeze the last horse out of your engine when he tunes. We are not done with mine yet. Still some work left to do:D. Car has low 10 sec potential with exhaust changes, changing Nitrous threshhold(set to diengage at 6400) and some minor suspension tweeks and some weight reduction.
still want to retain the Sleeper appearance inside and out!

so heads/cam 383 runs mid 11s? hmmm....

i got the pleasure of riding in this beast and trust me havok he isnt playing any games. its an amazing car! congrats rick! one of these days i'll catch up to you! haha

so heads/cam 383 runs mid 11s? hmmm....
Spray what u got and join the 10 sec club.
I had an 11 sec motor before (cam, heads, stock bottom end and bolt ons) but this one has much more torque and power and is forged so it could take much more abuse without the fear of grenading it, especially spraying while racing. Bottle is always closed on the street since most of the running is done on the track (except for nights when I feel like headhunting:D). Most 383's that I know of or read about are sturdy mid 11 sec cars that are preety consistant and sturdy.

i got the pleasure of riding in this beast and trust me havok he isnt playing any games. its an amazing car! congrats rick! one of these days i'll catch up to you! haha

Thanks for the props Eric. BTW still can't get thaty brown spot off my passenger seat after the ride.............J/K bro.
Your car is coming together quite well. Just keep workin on it and going broke like I did:D.
You ain't racin and goin fast enuff if you ain't breakin stuff:bang:.

i got the pleasure of riding in this beast and trust me havok he isnt playing any games. its an amazing car! congrats rick! one of these days i'll catch up to you! haha

oh, im not saying it isnt.

just asking about the times and setup...
my 346 cam only was runing mid 11s... lift was only .585/.585

Congrats on the times!

oh, im not saying it isnt.

just asking about the times and setup...
my 346 cam only was runing mid 11s... lift was only .585/.585


Hey havok one of the things about this car is that it has had absolutely no weight reduction done to it at all, has no cage, and is probly heavier tyhan most Z's with all the stuff in it. If I were to do all of that including opening up my exhaust mor this car would be alot quicker than what it is now. But fact of the matter is I'm a grandpa and I like to take my kiddos out for sunday drives in a balanced street strip car. Its a miricle I was not kicked of the track for not having a cage. Its required at 11.59 I think. Ya'll don't squeel on me either:D. Don't know how much longer I can push that envelope. By the way love your set up.
Thank you Slobird.

keep up the good work. daily driven is good, mine is capable, but i got another vehicle i use daily...

Nice car there, that's kinda what I'm goin for with my car, but i was thinking about a bigger cube block and a six speed.

Nice car there, that's kinda what I'm goin for with my car, but i was thinking about a bigger cube block and a six speed.

I thought about bigger cubes also but was always a bit biased toward the 383....probly cause of nostalgia for days of old. The 383 was always well respected and somewhat feared. The 6 speed is awesome but needed the A4 for the other family members when they needed to drive it (which was not often:D)

I thought about bigger cubes also but was always a bit biased toward the 383....probly cause of nostalgia for days of old. The 383 was always well respected and somewhat feared. The 6 speed is awesome but needed the A4 for the other family members when they needed to drive it (which was not often:D)

car is running strong keep it up---and havoc you only ran that 11.46 with like 30-or 40 degree weather 1 time

very nice. that silver vette in the first pass sounds like it could have used some gear

very nice. that silver vette in the first pass sounds like it could have used some gear

I'm just runnin 3.42's. Can imagine what I could do with 410 and 12 bolt or 9in. Ahhh to dream!
What times do you normally run Havoc?

"Just busted that @$$!" lol.

Nice looking sleeper. I'm aiming for mid 11's with stock appearance (stock wheels, stock hood, and something that LOOKs like full stock interior).

10s is badass...Congrats.

"Just busted that @$$!" lol.

Nice looking sleeper. I'm aiming for mid 11's with stock appearance (stock wheels, stock hood, and something that LOOKs like full stock interior).


I did a seat swap. Ditched the Camaro seats (hurt my back on long rides) in favor of some WS6 trans Am seats which are much more comfortable and IMO alot better looking. Best non performance mod yet. I am getting the seats done in two tone tomorrow by having the inserts on the seats done in the color of the car(maroon). Been wanting to do this for a while.
Thanks SStriker

I wouldnt call it a sleeper for guys on this forum (sounds like every other 11 sec fbody).

But on the street I'm sure youd suprise alot of people in a race!

I wouldnt call it a sleeper for guys on this forum (sounds like every other 11 sec fbody).

But on the street I'm sure youd suprise alot of people in a race!
Lmao.

I wouldnt call it a sleeper for guys on this forum (sounds like every other 11 sec fbody).

But on the street I'm sure youd suprise alot of people in a race!

True as that may be alot of low 11 cars and 10 sec cars are fitted with cages,yada,yada, yada.....
But that about surprising people is what it is all about:D for me, on the street and yeah...track also! Nothing better than driving it to the track and kicking a trailored cars ass.....no offense intended to any trailored cars, really.

True as that may be alot of low 11 cars and 10 sec cars are fitted with cages,yada,yada, yada.....
But that about surprising people is what it is all about:D for me, on the street and yeah...track also! Nothing better than driving it to the track and kicking a trailored cars ass.....no offense intended to any trailored cars, really.


Well actually I installed a full cage in my car even before I raced it the first time when it was a low 13 second car. The most important thing for me is safety!! I am currently in the process of putting my child through college at the moment.

For some reason most people think performance instead of safety.

Anyway congrats on the times and keep having fun with it.

N2

Congrats on the 10 sec pass:cheers:

Congrats on the 10 sec pass:cheers:

Thanks 2002camaross35th.
N2racingls1s I hear your concern about safey and your point is very valid. If my car were to get any faster than what it is now (low 11, 10 on dope) I would put a cage in it without hesitation. Lets look at some other facts though, there are many production cars now on the market that are running 11 sec 1/4 mi. without a cage or rollbar (Nissan, Chevy, Ferrari, Lamborghini to name a few). The reason is that technology has compensated for the deficiencies in cars (and driver) of later years (i.e. better suspension setups, traction control, ABS, computer talking to cars in real time to compensate for driver error, etc....). I have invested alot of $ into upgrades that many people take for granted and don't do ( suspension, bracing, tires, on and on adnauseum to help keep my car runnin straight and dependable and safe on the track). Lets just say the only thing I am missing is a cage. The car goes through a very rigorous inspection prior to even seeing track duty, usually 2-3 days before it touches the tarmac. Truth is you don't see too many 10-11-12 -13 sec cars bite it at the track, at least not where I run, or have run. Usually its those damned single digit cars :bang: where all the havoc usually occurs or the "Fast and Furious" street racer whose drunk, high etc and runnin where they should'nt be.
You are right though Safety first is critical cause "even monkeys fall from trees" and Murphy's law can kick in any time.

Nice car and congrats on reaching 10s!