His car does have a performance air filter and air scoop, but that's about all as far as the engine is concerned. When I drive my stock convertible it is sluggish compared to his car. It is a noticeable difference. We both have about the same number of miles (about 125,000 mi) and had similar tires. I didn't really think a performance chip could make such a difference on old cars, but it's a noticeable difference in the two cars. Both cars are automatic and neither one is dogged around.
I am aware my convertible is probably a couple of hundred pounds heavier, but would that make such a difference in performance? Both cars are running well and neither needs a tuneup or any other maintenance.
Is it really the chip making his car feel quite a bit peppier or is it the extra weight of my car making it feel sluggish compared to his? If I had never driven his car I would still feel my car is somewhat sluggish. However, I am used to high performance cars as I have had three Corvettes and a Porsche so maybe I expect too much. The last time I had a fast convertible I had a fuel-injected 63 Corvette Sting Ray, which was far peppier than the Vette I have now (1989) or the BMWs.
Can a performance chip make a 95 BMW 325i much peppier than a 97 BMW 328i Convertible?To be honest, it could be any number of things. It really depends on the upkeep of your car versus his. And yes, the added weight of the convertible is absolutely slowing you down. But there's not much you can do about that. You could try "chipping" your car, but it'll always be several hundred pounds heavier. Go to www.bavauto.com - they have quite a few performance upgrades for E36's, that's a good place to start. Personally, I'd recommend a turbo kit if you really want to blow your son's doors off. But that's not exactly cheap.Can a performance chip make a 95 BMW 325i much peppier than a 97 BMW 328i Convertible?unless my trusty bmw spec sheets are wrong seems both cars have same (stock) power ratings (at the crank) 192 for the 325 %26amp; 193 for the 328.
stock ratings 0-100 km were also almost same (8 sec vs 7.7 for yours)
http://www.bmwheaven.com/component/optio…
http://www.bmwheaven.com/component/optio…
seems to me 1st off, 325 will feel much nimbler, quicker in any event because its almost 250ls lighter, plus its a more rigid tighter feel.
have no idea re the gearing in these cars (either transmission or rear end)but that could affect the get up %26amp; go of the 325 as well.
a tuning chip is usually installed with both a perf. intake system and perf. exhaust system and in those cases may generate a gain in power over stock at the crank in the range of 17-22%.
whatever his gains from his intake/tuner combination his car is not only lighter but more powerful. if he has not installed a performance exhaust in the car....would be a great enhancement.
i had 2 bmw's...1st one was a heavily modified 318, 2nd one was the 328i, and quite frankly i just found it too slow...(got tired of playing 2nd to every high reving honda or toyota).
i had considered forced induction and focused on a supercharger (vs a turbo), because its lighter, has a more linear boost pattern, and no turbo lag....install cost is cheaper as well (no piping/plumbing).
there are bolt on kits, and the engine is strong enough to handle the boost without upgrading internals....if you are interested.
i never did proceed with that....returned to "american muscle"
cheers (04 cobra, whipple blower, 15lbs boost, 575rwhp on the dyno)Can a performance chip make a 95 BMW 325i much peppier than a 97 BMW 328i Convertible?I believe that BMW made both the 325i and 328i convertibles with detuned engines. That reduction in performance plus the added weight of the convertible should make the 325i coupe and sedan noticeably better in performance. The performance air filter and air scoop on the 325i have virtually no effect on HP or TORQUE unless you can operate with sustained 6000 + RPM engine speeds. It is only the advertising and the engine sounds that give you the boosted throttle response.
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