How to loose weight of T2?
09-09-03, 08:18 PM
#26
Wait................What?
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Originally posted by DAN CARWIN
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
I understand your point, unfortunately, we dont know if this is a daily driver setup, or a race setup. So my reply was simple, just start naming the most popular devises to remove weight. Pay attention to people's sigs.. and almost all of the people that did any kind of weight reduction, dumped atleast their powersteering... some A/C, some lost all the carpet to get rid of that tar and ****... so, I just answered the question as best as I could.
09-09-03, 08:34 PM
#27
Need donor car in Fairfax
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1. Complete removal of emissions equipment can net you 50+hp.
2. I cant stand the PS feel in these cars. My car is 100% better w/ no power steering
3. If youve ever worked on an engine w/ no emissions,ac,ps,bac valve, then disassembly and working on the engine is a huge plus. Not to meantion less chance of something breaking. (vaccuum mod)
2. I cant stand the PS feel in these cars. My car is 100% better w/ no power steering
3. If youve ever worked on an engine w/ no emissions,ac,ps,bac valve, then disassembly and working on the engine is a huge plus. Not to meantion less chance of something breaking. (vaccuum mod)
09-09-03, 08:49 PM
#28
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2. I cant stand the PS feel in these cars. My car is 100% better w/ no power steering
BTW= I dont think removing emissions will give you 50Hp.
09-09-03, 09:40 PM
#29
Well about the 50HP if you count a 3" tubo back or more specifically the RB turbo back that is 59HP isn't it? that is from removing emmissions equipment 
Dan Carwin- like I said he probably gives a rats crap about what YOU personally beleive is WORTH IT and was is streetable and drivable on a daily basis. I personally haven't stripped my FC because I only have one and I don't want to have a CRX looking **** lol. But if he really wants the small gains to be had then it IS worth it TO HIM and therefore makes your argument a waste of space on this thread and nothing more.
Dan Carwin- like I said he probably gives a rats crap about what YOU personally beleive is WORTH IT and was is streetable and drivable on a daily basis. I personally haven't stripped my FC because I only have one and I don't want to have a CRX looking **** lol. But if he really wants the small gains to be had then it IS worth it TO HIM and therefore makes your argument a waste of space on this thread and nothing more.
09-09-03, 10:10 PM
#30
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Originally posted by DAN CARWIN
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
Unlike what you might think, removing weight does not add 1-2 hp. It does not add any hp at all. It improves the power/weight ratio, which is the main contributing factors in acceleration. Every 100 lbs of weight removal will approximately net a 0.10 lower ET in the 1/4 mile.
It doesn't matter how many RX-7's you have built if you don't understand some common physics surrounding the vehicle.
09-09-03, 11:39 PM
#31
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I think the comment on 1-2HP (which is an underestimate with both a/c and ps, particularly on older compressors and low torque rotary engines in terms of practical/seat of the pants feel) was more referring to parasitic losses from these components rather than gains in power from the weight reduction itself...the two are separate and were addressed by all parties separately. Much like underdriving accessories or lightening flywheels, it does not 'add' HP per se, but merely frees up parasitic/frictional losses where the power stroke 'uses up' HP in turning accessory drives, rotational inertia, et al.
Jason
Jason
09-10-03, 12:23 AM
#32
Haven't we ALL heard this
Weight reduction is a great way to improve your car. In all catagories (handling, accleration, braking) like stated before.
Also, doing things like not hauling a complete tool kit with you helps. Make sure you keep your car cleaned out. No left over lunches behind the seat
Also, keep the banging sound systems at home.
And don't forget the driver Horse Jokeys aren't skinny and small for nothing.
And with a lighter car I would venture to say it will get better gas mileage.
Before you do it though find a scale and do a before/after weight for us
James
PS - Some of you guys need to chill. Go in the corner and rub one out then come back to your keyboards.
Also, doing things like not hauling a complete tool kit with you helps. Make sure you keep your car cleaned out. No left over lunches behind the seat
Also, keep the banging sound systems at home. And don't forget the driver
Horse Jokeys aren't skinny and small for nothing. And with a lighter car I would venture to say it will get better gas mileage.
Before you do it though find a scale and do a before/after weight for us
James
PS - Some of you guys need to chill. Go in the corner and rub one out then come back to your keyboards.
09-10-03, 01:33 AM
#33
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Hopefully Dan Carwin has realised by now he sounded like an ***, but he wasn't completely wrong. Some people go totally overboard with weight reduction and end up with a worthless beater car that doesn't go that much better than before.
Things like A/C and power steering are purely personal choices. If you don't feel you want or need them the remove them. Just keep in mind you are removing resale value from the car. I like both, so they both stay.
You need to keep individual weight reductions in perspective. People mention a 30lb weight reduction as if it's a big thing, but in fact it's only 1% of the total weight of a S4 Turbo. Do you think you're going to notice that? Yeah, right... The components that you can't change (chassis, drivetrain, suspension, etc) are what make up most of the car's weight. So you have to remove a lot of little things to make a noticable (as opposed to measureable) difference, and you end up with a car that's not all that pleasant to own. Ever been in a car with a performance exhaust and no carpets or sound deadening? No thanks, I like to be able to hear the radio or talk to my passenger.
People suggest the silliest things as weight savings, like spare tyres, tools, jacks and now tow-hooks! These people have obviously never had a flat tyre or needed someone other than a tow-truck to tow them home. Your day will come...
As for emissions removal, the only piece of emissions equipment that has a significant effect on power is the cat (but it sure as hell isn't 50hp). But once the cat is removed, then nearly every other bit is redundant. I don't believe in removing useful, functional stuff from my car, but I'm more than happy to remove dead weight. But is that weight going to have a noticable effect on performance? Maybe, but it won't be anything to get excited about.
You've just got to keep a balance between the usefulness of what you plan to remove versus the noticable affect it will have on performance. In theory a 1lb weight reduction and/or a 1hp power gain will make your car accelerate harder, stop faster and corner better, but can you tell? If you're prepared to rip the guts out of your car to lighten it, you need to stop and ask yourself why you didn't just buy a lighter car in the first place.
Things like A/C and power steering are purely personal choices. If you don't feel you want or need them the remove them. Just keep in mind you are removing resale value from the car. I like both, so they both stay.
You need to keep individual weight reductions in perspective. People mention a 30lb weight reduction as if it's a big thing, but in fact it's only 1% of the total weight of a S4 Turbo. Do you think you're going to notice that? Yeah, right... The components that you can't change (chassis, drivetrain, suspension, etc) are what make up most of the car's weight. So you have to remove a lot of little things to make a noticable (as opposed to measureable) difference, and you end up with a car that's not all that pleasant to own. Ever been in a car with a performance exhaust and no carpets or sound deadening? No thanks, I like to be able to hear the radio or talk to my passenger.
People suggest the silliest things as weight savings, like spare tyres, tools, jacks and now tow-hooks! These people have obviously never had a flat tyre or needed someone other than a tow-truck to tow them home. Your day will come...
As for emissions removal, the only piece of emissions equipment that has a significant effect on power is the cat (but it sure as hell isn't 50hp). But once the cat is removed, then nearly every other bit is redundant. I don't believe in removing useful, functional stuff from my car, but I'm more than happy to remove dead weight. But is that weight going to have a noticable effect on performance? Maybe, but it won't be anything to get excited about.
You've just got to keep a balance between the usefulness of what you plan to remove versus the noticable affect it will have on performance. In theory a 1lb weight reduction and/or a 1hp power gain will make your car accelerate harder, stop faster and corner better, but can you tell? If you're prepared to rip the guts out of your car to lighten it, you need to stop and ask yourself why you didn't just buy a lighter car in the first place.
09-10-03, 06:01 PM
#34
Ok, I'm giving up I surrender!!! I now realize where I went wrong on this thread, I was stating my personal oppion on the situation, and as 1987 guy said no one gives a **** what I think. I guess from my personal experience on doing the weight reduction/ to my benifit it did not equal out. So for what it is worth I'm sorry for pissing every one off.
09-10-03, 06:07 PM
#35
Poor Lil' Kid
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Originally posted by DAN CARWIN
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
I'm stating my point here: I NEVER said that you can not gain any HP or speed by completlley stripping your car, or doing weight reductions, BUT what I'm saying is it does not seem worth it to REMOVE all FUCTIONAL PARTS such as your P/S A/C and EMISSIONS etc.... for 1-2 HP gain on a daily driver for a car. NOW if this is his RACE CAR ONLY, I can see a point to it. but understand that doing MODS to it can make up for the weight reduction affect and you still have useful stock parts that actually work well. And one last thing there is no way in absoulte HELL that a SENTRA dropped 3 seconds in a qtr mile just by doing weight reductions He must have been sitting on the frame with no body to it.
09-10-03, 07:04 PM
#36
Senior Member
I wonder what the original poster has to say. He hasn't replied in awhile. To him, I would say that reaching a 2600lb goal will be fairly hard unless he stripped nearly everything (sound deadening, carpet, PS, AC, etc.) and upgraded to some performance parts. Then automatically I would assume this to be a race setup because it would be nearly impossible or damn uncomfortable to drive this kind of car everyday. I would agree with NZconvert, if you want a light car, go buy a miata or something.
Otherwise, here's a few things to you do.
- Aftermarket exhaust (the stock full exhaust weighs nearly 65lbs whereas my RB dp + ps + JIC Titanium Catback weight a bit under 30lbs.)
- Rip out the interior (~35lbs)
- Sound deadening (~10lbs)
- Spot welding!
- Aftermarket Suspension
- AC, PS, emissions, air pump
- Aftermarket seats
- Lightweight Wheels
These are probably the biggest areas you can change. Yes, Dan is right that it won't make a HUGE difference as a daily driven car (mainly because you won't be pushing the limits of the car very often) but to a race setup car, it will do wonders.
Kevin
Otherwise, here's a few things to you do.
- Aftermarket exhaust (the stock full exhaust weighs nearly 65lbs whereas my RB dp + ps + JIC Titanium Catback weight a bit under 30lbs.)
- Rip out the interior (~35lbs)
- Sound deadening (~10lbs)
- Spot welding!
- Aftermarket Suspension
- AC, PS, emissions, air pump
- Aftermarket seats
- Lightweight Wheels
These are probably the biggest areas you can change. Yes, Dan is right that it won't make a HUGE difference as a daily driven car (mainly because you won't be pushing the limits of the car very often) but to a race setup car, it will do wonders.
Kevin
10-08-03, 12:26 AM
#37
Senior Member
I read this tread in hopes of finding reasonable weight reduction...it's hard to find things. Like the tow hook idea...how bout leaving just one and putting can of fix-a flat next to your cell phone after the spare is removed.
I'd like to here a bout brite ideas that won't make me look like a drag car but save weight.
We all know that a car can be stripped..that's easy, but it is hard to do it and not make it LOOK like it.
More ideas please..
I'd like to here a bout brite ideas that won't make me look like a drag car but save weight.
We all know that a car can be stripped..that's easy, but it is hard to do it and not make it LOOK like it.
More ideas please..
