Engine / Drivetrain
Engine: I am estimating about a 45hp increase from current mods over factory. Although not dyno'd yet, i have raced a few cars. one of which a 06 accord V6. these make 244 hp and click the 1/4 at 15.6 @ 91... and my old times on the interceptor gauge are 15.6@90 so with my car able to walk over him its pretty easy to say its making in the area of 260hp. Also my recent trip to the track landed me at 14.91@93.8mph making me currently the fastest NA LQ1 5th gen monte.
Design Theme:
I am designing this engine for daily driving. High level or risky mods are not entering the plan. All mods are aimed at making the existing componets work more efficently. For the color scheme, I am aiming for a clasic muscle car look with a touch of modern systems accented.
General Engine and Vehical Informantion:(Reference: GM Media.gm.com )
1996-97 3.4 Dual-Overhead Cam (LQ1) SFI 60 degree V6 vin X
DOHC
3.4 Liter-207ci.-3376cc Displacement
3.62 x 3.31 Bore x Stroke (in)
Throtle body size Inlet 78mm Throtle plate 64mm
MAF size Inlet's & Screen 78mm Inside/sensor 67mm
Stock Stats:
215hp @ 5200 rpm
220tq @ 4400 rpm
Red Line: 7000 rpm (6850 true fuel cutoff from computer, 7000 spark table red line)
9.70:1 Compression
Fuel Induction Sequential F.I.
Firing Order 1-2-3-4-5-6
Fuel Injectors 24# at 45psi
4T60-E Transaxle:
FWD 4-speed automatic with over-drive
204 lbs transaxle weight filled
Gear Ratios:
1st -- 2.921
2nd -- 1.568
3rd -- 1.000
4th -- 0.705
Rev -- 2.385
Stall speed: 2060
Final Drive/Differential Ratios:3.06
Overall Ratio: 3.43
Chain Ratio: 33/37
Factory Speed Limiter (115-118) reduces power at 115 and cuts all fuel at 118mph!
Car:
Frame Integral Body-frame
Body Material Two-sided galvanized steel body panels (except roof)
Curb Weight 3300lbs
Weight distribution: 64F/36R
Lateral G: .81
600ft slalom: 58.9 mph
60-0mph: 122ft
0-60mph: 7.8
1/4 mile: 15.8@85mph
Length 200.7"
Wheelbase 107.5"
Width 72.5"
Height 53.8"
Track F/R 59.5/59.0
Fuel Capacity 16.4 Gal (Z-34) LS: 14.2 Gal
Brakes ABS All Wheel Disk (Z-34) LS: ABS Rear Drum Front Disk
Steering Rack-and-pinion, power-assisted; Variable-effort (Z-34)
Suspension
Frt: Independent, MacPherson strut, coil spring, stabilizer bar
Rear: Independent, Tri-link, MacPherson strut w/coil springs and stabilizer bar
Factory Tire 225/60-16 (Z-34) LS: 205/70-15
Factory Wheel 16"x6.5" (Z-34) LS: 15"x6"
95-96 Z-34 wheels 35-38lbs each with tire
Bolt Pattern 5-115mm (5-4.53") +40mm
Hub size is 70.3mm
Tire Size Calculator Site
Interior Dimensions:
Leg Room front/rear 42.4"/34.9"
Head Room front/rear 37.8"/36.9"
Shoulder Room front/rear 57.5"/57.5"
Hip Room front/rear 53.4"/51.6"
Trunk Volume 15.7 cu.ft
Liftover Height 26.7"
Interior Volume 96.0 cu.ft
Current Mods:
Air Intake/Exhaust:
-Fender Well Intake version-4
-Port matched & Polished Throttle Body, MAF sensor, Upper, and Lower Intake Manifold
-2.5" Exhaust: High flow cat, Magnaflow muffler, Glasspack, twin Stainless rolled tips.
-EGR delete with AL cover plate and retune
-PVC system replaced with breathers
-EVAP solonoide delete fuel tank vent line rerouted (charcol canister removed)
-Airpump removed along with plug in exhaust
-Modified brake vacume hose. Shortend 1-1/4 feet for more direct connection.
Cooling/Fluids:
-ZZP modified 180* thermostat (ZZPerformance)
-TB Coolent bypass
-Water Wetter
-Castrol Syntec 5W30 Oil
-L67 Injectors
Tuning:
-Fans, Shift points, Injector remap
-Gov move from 118 to 170mph (top speed drag limited 145-150 est)
-Spark and Fuel curve optimized
-and much much more
Misc:
-FFP Poly/Al Engine Mount (Fast Forwad Performance)
-Self fab'd Solid upper motor mount
-FFP Under Drive Pulley
-H.O. Alternator
-Optima Redtop battery
-Autolite #103 Single Plat plugs (two heat range colder)
-Custom Ground Kit
-Neon Hood Light
Future Plans:
Dyno tuning
13* Intake timing mod
Light weight lifters
P&P heads
Higher compression
Rebuild with gapless rings
Dual runner lenght upper intake manifold
Ported Exhaust manifold or Headers
Race built 4T60e from ZZP or 97 conversion for using 4t65HD
Project:
Custom engine paint.
Port and Polished Throtle Body and MAF
Versions 1,2,3
______________________________Current Regrid______________________________
Ported & Polished Upper & Lower Intake Manifold and Intermediate arm
All Port matched for better flow.
Before and after shot of intake path showing the runout on the ports.
Throtle Body Coolent inlet bypassed by cutting the molded tube. Adapter plate needed for installation. More info on page 6 (How To Section)
Air Pump Plug/Port
The factory has an air pump that injects fresh air into the exhaust for the first min of start up to pre heat the cat a bit faster. The port they chose to use is huge! and obstructive to exhaust flow. You all have two options. First if you have a computer tuner, you can remove the system all together, or just remove and flip the plug...it will fit backwards in the pipe aswell. If you choose to remove the system, you can plug the hole with a brass plug or a penny. I chose the penny.
Exhaust System
Even thought i loved my previous system with the cutout, i had problems with the salt air down here rusting the cable. So...I went with an even higher flowing fixed system. It consists of a High Flow Cat, a Magnaflow 14" Muffler and a Z28 style tip exiting in a side pipe again. The entire system is 2.5" it is a bit louder then the old cutout system. I recently tested the car with my Interceptor gauge and found on a normal bridge i race up i am now .5 sec faster in the 1/4! I just cant wait to get ot a track and get some real numbers!
Slow Accel>Accel to 6k
Slow Accel
Accel
Due to too much interior noise, i rebuilt this system. I had a Glasspack installed and had duals put back on the car. Each tip is equal lenght for perfict flow. they are made of Stainless steel and hold an amazing shine even in the salty florida air. here are a few pics. i'll get some more sound files soon.
