View Full Version : Cams/ Headers/ TB for ZHP?
Gran Blanco
03-24-2004, 10:26 AM
Some breakdowns (even BMW-posted) of factory ZHP mods are a little incomplete. Does anyone know fairly conclusively which of these 3 parts are already upgraded from non-ZHP 330's? Throttle body is unchanged (from non-ZHP) so this would be a potential mod, right? Headers are also unchanged. but cams have been upgraded already I seem to remember. Can anyone confirm?
330i Performance
05-03-2004, 07:13 PM
The ZHP has a "6 speed" with new clutch and flywheel ( lighter). Different muffler "lil louder", New Cams "10 more ponies" , New ECU upgrades "better throttle response" (Dinan software is now in full production for the ZHP) Suspension, Fatter sway bars, shorter springs, stiffer shocks, smaller ratio rack and pinion steering setup, smaller ratio than an M3!, 3.07:1 rear end gears from 2.89:1, Functional Brake Vents, short throw shifter (the UUC EVO3 is MUCH BETTER!!!!!! A++ reccomendation) and subtle interior upgrades, other than that, its a 330i ZSP.
listener
06-02-2004, 11:50 PM
That's weird, I called Dinan last month and the person I spoke to claimed they have done zero work on ZHP software. :screwy:
Do they actually have it?
330i Performance
06-04-2004, 10:41 AM
last i heard, which was may 29th they asked me if i was ready to do my stage 1 upgrade.. maybe my service/dinan guys were confused! haha it happens sometimes, but Steve Dinan visited my local shop and did free employee upgrades and i believe the ZHP got done! so ill double check and post my answer.
:screwy: sometimes those service guys get too much work on their platter! haha
m54b25
03-09-2005, 08:12 PM
Performance:
HP 235 vs 225 Torque 222 vs 214
Quicker steering rack 13.7:1 (E46 M3 is 15.4:1)
Shorter final gear ratio: 3.07:1 vs. 2.93:1 for manual (3.38:1 for steptronic)
Lowered suspension by .6" with firmer spings (6% in the front, 8% in the back)
Different shock absorbers (the fronts are firmer by 50% in compression and 35% in rebound, the rears are 20% firmer in compression but 8% softer in rebound)
More rigid bushings
Larger anti-roll bars by .5mm front and rear.
Wheel camber is set to -0.5*
More aggressive cams
Differnt ECU which starts the redline higher (6800 rpms vs 6500rpms) and remaps the fuel/air ratios.
Raised top seed limiter to 155mph vs 128mph.
Larger diameter exhaust
More rigid and lighter flywheel
Exterior
M Technic aero package
Glossy Shadowline trim
Black headlight trims
18" M double spoke allowy wheels 225/40 front 255/35 rear
M lip spoiler (no cost option on coupes)
Available Imola Red paint
Interior
Standard cloth/Alcantara seats (optional leather)
Standard black cube trim (silver cube optional)
Anthracite headliner which also covers the A, B, and C pillers
Alcantara shift boot
Alcantara E-brake boot
Red needles in the gauges
M 3-spoke steering wheel covered in Alcantara
Space saver spare tire for less weight
All this for $3900 :lol:
As you can see there are alot of differences between the standard 330 and the 330 with the ZHP option.
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