Technical Weight savings, accesory deletes, etc
- Thread starter Panzerfaust
- Start date
I didn't buy the Hard A/C delete. I'm running the stock belt from an S2000 and one less idler pulley.
There is really no reason to do the A/C delete if you're not removing the compressor. That's 11lb of the maybe 18lb total you can remove between the compressor, lines, and condensor.
If you want to keep power steering you can route a 1700mm belt (dayco 5070670) like this:
Nah, the main person I saw left the lines and everything in place too - just ran a shorter belt to free up power.
How is the car without power steering? I debated deleting that too since theres no under drive pulley kits for our cars due to lack of an M badge, but the only posts I could find were very old (pre-2015) e90p posts about how the cars steering shaft is too heavy or something along those lines for the car to be driven without PS or other assistance. I know that at least two people on FB (Draysen Mead and Joel Bowlin) ran their cars without PS for a significant amount of time with no issues but they were 90% strip-only AFAIK. And I know @doublespaces swapped in the M3 steering rack which I believe isnt run off of a pulley, but I do remember him saying it was a bitch to do and I'm sure its heavier due to electronics being bolted up to it.
It's a shame that the lady has been home for my 3 days off in a row, because the weather has been nice e and these thread bumps have me motivated. But I dont think stripping out carpets, plastic and sound deadening is her idea of quality time together
I don't want to keep it
. I actually had that dayco belt before I decided to delete PS.Driving on the road, dunno. I'll get back to you in September lol. I imagine like @MDORPHN said it would be rather difficult to steer; however, I'm on a 4.5" wide front tire and will likely weigh 2700-2800 lbs.....and going in a straight line mostly. The only time I'll take the car out on the road is to cars and coffee or something.
Weight savings isn't worth it IMO for a daily driven car. I've already weighed the PS stuff if your interested, I'll post it later tonight.
because the weather has been nice e and these thread bumps have me motivated. But I dont think stripping out carpets, plastic and sound deadening is her idea of quality time together
I'm going as far as I can minus modifying OEM body panels I think. Some of the classes I want to run at SCT and IFO still require unaltered body panels.
Eh, depends on the extent imo. My car isn't a true daily driver even though I take it to work 4 minutes away most days of the week right now (its summer here in Chicago) so I do think I can get away with more than most street cars, but theres certainly things you can toss or replace with lighter parts and stay comfortable. You surely wont ever hit 2300lbs on a commuter car, but shaving a hundred or two is definitely possible I think. Some sound deadening, control arms, wheels, brakes, engine bay junk... like mentioned earlier, the little stuff adds up and all you need is that tenth of a second to win a race
Some values before I clean up the spreadsheet.
Power steering pump = 6.2 lbs
Power steering reservoir = 1.8 lbs
Power steering cooler = 2 lbs
Power steering lines = 2 lbs
Total = 12.2 lbs
AC compressor = 11.8 lbs
AC condensor = 6 lbs
AC lines = 3.8 lbs
AC control unit = 0.8 lbs
Heater/AC unit behind dash = 18.8 lbs
Total = 41.2 lbs
Front carpet (E90) = 19 lbs
Rear carpet (E90) = 15.6 lbs
Total = 34.6 lbs
Windshield wiper arms = 3.4 lbs
Windshield wiper motor = 6.2 lbs
Total = 9.6 lbs
Engine cover = 3.4 lbs
That's 100 lbs right there easy so about a tenth in the quarter. Majority from the front half of the car.
Power steering pump = 6.2 lbs
Power steering reservoir = 1.8 lbs
Power steering cooler = 2 lbs
Power steering lines = 2 lbs
Total = 12.2 lbs
AC compressor = 11.8 lbs
AC condensor = 6 lbs
AC lines = 3.8 lbs
AC control unit = 0.8 lbs
Heater/AC unit behind dash = 18.8 lbs
Total = 41.2 lbs
Front carpet (E90) = 19 lbs
Rear carpet (E90) = 15.6 lbs
Total = 34.6 lbs
Windshield wiper arms = 3.4 lbs
Windshield wiper motor = 6.2 lbs
Total = 9.6 lbs
Engine cover = 3.4 lbs
That's 100 lbs right there easy so about a tenth in the quarter. Majority from the front half of the car.
Anybody considered the CF doors? Pretty sure its e92 only, but man theres some weight in those things. The cost has kept me away for a while, but I've thought about it.
Some of the classes I want to run in require factory body panels and/or glass. So I likely won't be going fiberglass or lexan. The only thing I could do I think is put the M3 carbon roof on.
I think @Terry@BMS has an aluminum one on his 135?
@sirdaft1 has one. Maybe he can comment on weight savings? I've seen it in person, it's noice. Pic taken from another forum.
I like that it does not block the larger ICs. I am sure there would be a market for this product. Save weight off the nose of the car, 20% more flow to your IC(in theory). Granted you have a bumper cover in the way still but it would help.
Me too. I actually removed my front crash bar to offset the weight of the massive intercooler. I'm debating on cutting up my front bumper to expose more of the intercooler too. I'm waiting to see how my IAT's are first though.
*Disclaimer... this is a track car and I understand the risk of removing the crash bar entirely*
We're right now planning to cut out the center portion of the crash beam on my 1M to get more unobstructed flow to the intercooler. We'll probably weld some tubular steel across the divide. I'll then be venting my bumper cover.
Neil
Doesn't the E92 M3 come with a carbon fiber crash bar?if that would fit, you'll be saving a good amount of weight in front.
Won't fit as the 1M is an E82. In any event, I'm doing it for airflow not weight savings.
Neil
I searched for one for about a week and contacted a couple fabricators, even posted in a thread here about getting one developed, but decided to go this route. Down to about 8 or 10lbs from 22.
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