No HP so how about weight?

[catimann]

I was reading a thread on ideas for more HP and Forced induction seemed to only way to get somewhere. Supercharger or turbo, or buy an M.
Well I have my 2.8, it goes ok and I like it . . . and it is in great shape. So how about a diet? I have not tried to see if my motorcycle speed cell would start the car but it might and that battery only weighs 2 pounds. I took the carpets out of a parts car I bought and those weigh a ton but I'm not sure if I want to do that on my car.
Spare tire could go.

Any other thoughts or are there any other threads on this topic?

[BladeRunner919]

Are you racing the car? If so, just strip everything out. If not, what exactly are you looking to achieve? If you want to see a noticeable speed improvement you need more power - losing a few pounds here and there won't make any difference that you'll notice.

[deni2s]

First thing you want - lighter wheels - that will make the most impact. Then you can change seats to sport seats, remove ballasts under the rear bumper on roadster, put more lightweight sport battery, lighter aftermarket exhaust. Then you can remove air conditioner (probably another 20 kg), strip the interior/carpets, but that probably will not save much.

You can put carbon fiber trunk lid, hood (to even weight distribution a bit, as most weight savings will come from rear) and other panels, but at this point putting supercharger might be more effective/cheaper.

Also consider diff ratio change as alternative to more hp/weight savings.

[awdonald]

Don't forget...."go to the gym".
Isn't 10# = xxx hp ?

On a more serious note, try a higher ratio diff.

[LannVouivre]

Don't forget...."go to the gym".
Isn't 10# = xxx hp ?

On a more serious note, try a higher ratio diff.

I'm very petite and only weight about 120 lbs. Perhaps Catimann could try shrinking? (I kid...obviously).

What you can remove really is going to depend on what you want. Do you need HVAC? The interior? Etc.

[ZoO]

2000... is that a m52b28tu? You might want new headers with cat delete, and lighter exhaust system. Replace seats, the seat rails are really heavy. New suspension from tckline , ground control, should take a good amount of weight off the corners. A rear diff from an auto 3.0 should make it feel faster. Lighter forged wheels, sticker tires should finish off your car.

[328 Power 04]

I think it's a 98, which would be single Vanos. For those, there is a little bit of cheapish power found with using M3 camshafts and associated mods...
If you are a handy DIYer and can hunt for good deals.. you can get S52 camshafts for ~$300, M50 manifold and install kit for ~$200, plus a good tune for the camshafts/manifold (200-$300?), and you'll get some 15-20hp conservatively, without torque loss.

[ZoO]

Sorry I thought lann was op. Sorrry

[Muzz258]

Run the car on the highest octane fuel you have available.

[catimann]

How about replacing the motor? Hayabusa engine would shave off 130+lb. Not much of a HP loss.

[328 Power 04]

lol

scooting around town at 10000rpm

[Z-Thrizzle]

How much weight savings can their be with removing the power steering?

[deni2s]

Run the car on the highest octane fuel you have available.

Don't listen to this advice unless you have adjusted ignition timing for higher octane.

[BladeRunner919]

How about replacing the motor? Hayabusa engine would shave off 130+lb. Not much of a HP loss.

I think you'd notice the massive loss of torque, though!

[LannVouivre]

Sorry I thought lann was op. Sorrry

Were you talking smack about my size?! You're just jealous that I can't fully depress a clutch pedal.

Bonus fact: I cannot drive a manual 5th gen mustang in any forward gear because I can't both use the clutch and see over the dash simultaneously. I can only drive it in reverse thanks to the mirror.

[BimmerBreaker]

Fill the chassis rails with helium

[zellamay]

Most of these mods come at a price, with only small gains. If you start doing cams, wheels, etc., you will end up spending as much as you would to sell your car and buy an M. I say make a choice: #1 Do a few cheap mods: CAI, fan delete, take the spare tire out. #2 Buy an M . The cost difference to buy an M these days is just too small to ignore, and it's a much better car if you're interested in fun driving.

[Remotion]

It is easy to strip weight from 2.8. Mine has lots of carbon, lightweight wheels and 2kg battery. carbon seats and possibly hood will be next bigger tasks.

I have spent a lot of money though. Well, the car was same price as nice M coupes to start with and I have easily put more than 1,5x the amount on the car already...

It is always best starting point to start with most powerful version. But if you are obsessed with weigh reduction then 2.8 and 3.0 models are better starting points.
I believe getting close to 1000kg dryweight mark is possible while I know two cars with naturally aspirated M52 2.8 engine with 385 to 400hp. That means solid lifters, nonstock internals, itb's and 9500 rpm limiter. Ofcourse it would be track car at that point. 2.8 is way better than 3.0 for high revs application because of square bore and stroke.