Sad news... The downfall of the mighty V8s
10-17-2007, 09:26 AM
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Originally Posted by aznunknownx' post='482549' date='Oct 17 2007, 08:07 AM
Allright I know that most of you are aware that the BMW's twin turbo series will soon beat us V8 owners in the future due to the upcoming mods. I'm sure that pretty much all the 535/335 owners have a grin on their face when reading this 
If anyone wonts to keep their children (and their children) alive and well
I hope the L4 and L6 diesels will be noticed in US soon.
But so also in China and India.
One Al Gore just got the Nobel price, guess for what?
10-17-2007, 09:32 AM
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Originally Posted by Bad Bimr' post='482651' date='Oct 17 2007, 08:26 AM
Look at the size of these tiny turbos. The wastegate is as large as the the turbo itself. These turbos are very tiny so they spool very fast (no lag) and run out of steam at the top of the rpm range. These turbos will not last very long at high boost. Sure the car will be fast but reliability will be greatly reduced. Like I said before if it could be done BMW would have done it in the factory.
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Marketing: BMW knew when they started production on the 535 that it would eat into 550 sales. Who pay more $$$ for a 550 when a cheaper 535 could beat it stock?? Back in the day, the 3.8l turbo in Buick's GNX was at the time considered the most powerful production car motor built yet GM kept it "detuned" in order to maintain Corvette sales.
Furthermore Nissan (Skyline GT-R) and Toyota (Supra) have been prodcing twin turbo setups for over a decade with SMALLER displacement engines and have achieved similar results. Its been documented that with regular maintenance a twin turbo GT-R could produce up to 600hp and last well over 100k miles. I would think BMW would be playing it "safe" with their setup since they don't want to lose face if tuners discovered their twin turbo setup couldn't run as hard as the "ricers".
Although the turbos are small, there is still some noticeable lag - especially when moving from a standstill. Correct me if I'm wrong, but to counter this the turbos would be designed to spool faster.......which sacrifices boost.......which lowers output power. My point here is that the engine was detuned for smoother acceleration, not fear of mechanical breakdown. This is just my opinion though.....
10-17-2007, 09:46 AM
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Seams too like you really have to load up on options to compare the 550 which comes standard with a lot of extras so at the end of the day the cost is really pretty close and just give buyers more decisions whether to go econo sleeper or v8 beast...in my opinion at least!
10-17-2007, 12:38 PM
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Originally Posted by Heloha' post='482746' date='Oct 17 2007, 10:46 AM
Seams too like you really have to load up on options to compare the 550 which comes standard with a lot of extras so at the end of the day the cost is really pretty close and just give buyers more decisions whether to go econo sleeper or v8 beast...in my opinion at least!
+1 I agree with that.
And while the original poster are talking about modified 535's lets talk about modded 550 just so we could be even. for $2199 a 550 can throw a set of 3.45 gears which would be the equivelant to 60 lb/ft of torque!!!!
So bottom line is the modded 535 would look sad compared to a 550 with 3.45 gears at about the same modification cost
10-17-2007, 05:38 PM
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Originally Posted by JetBlack' post='482809' date='Oct 17 2007, 01:38 PM
+1 I agree with that.
And while the original poster are talking about modified 535's lets talk about modded 550 just so we could be even. for $2199 a 550 can throw a set of 3.45 gears which would be the equivelant to 60 lb/ft of torque!!!!
So bottom line is the modded 535 would look sad compared to a 550 with 3.45 gears at about the same modification cost
And while the original poster are talking about modified 535's lets talk about modded 550 just so we could be even. for $2199 a 550 can throw a set of 3.45 gears which would be the equivelant to 60 lb/ft of torque!!!!
So bottom line is the modded 535 would look sad compared to a 550 with 3.45 gears at about the same modification cost
10-17-2007, 08:53 PM
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Originally Posted by aznunknownx' post='482549' date='Oct 16 2007, 10:07 PM
If we're talking Standard, then yes the V8s will surely stand a chance against the Twin turbos (335i/535i) but apparently its not a happy ending for us because over a VERY simple and CHEAP remap (under $1500), the 300 hp Twin turbos you once knew will now become 375 hp or maybe even more. That is 15 more HP than our standard 550/650/750 models
Straight line speed isn't everything and you come to a point where you believe the car is quick enough. But yeah, the bi-turbo engine is the current bmw to have if you wish to put down big numbers rather comfortably.
10-18-2007, 12:05 AM
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Originally Posted by aznunknownx' post='482906' date='Oct 17 2007, 06:38 PM
Could you explain a bit more regarding this mod? The 3.45 gears thing, I'm pretty interested in hearing more
10-18-2007, 12:33 AM
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Originally Posted by JetBlack' post='482809' date='Oct 17 2007, 03:38 PM
+1 I agree with that.
And while the original poster are talking about modified 535's lets talk about modded 550 just so we could be even. for $2199 a 550 can throw a set of 3.45 gears which would be the equivelant to 60 lb/ft of torque!!!!
So bottom line is the modded 535 would look sad compared to a 550 with 3.45 gears at about the same modification cost
And while the original poster are talking about modified 535's lets talk about modded 550 just so we could be even. for $2199 a 550 can throw a set of 3.45 gears which would be the equivelant to 60 lb/ft of torque!!!!
So bottom line is the modded 535 would look sad compared to a 550 with 3.45 gears at about the same modification cost
10-18-2007, 12:43 AM
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Originally Posted by heezy545i' post='482963' date='Oct 17 2007, 11:53 PM
Remember that 375hp is 375 hp at the wheels which translates to roughly 430bhp at the crank. You would have to invest more than $1500 to reach those numbers though.
Straight line speed isn't everything and you come to a point where you believe the car is quick enough. But yeah, the bi-turbo engine is the current bmw to have if you wish to put down big numbers rather comfortably.
Straight line speed isn't everything and you come to a point where you believe the car is quick enough. But yeah, the bi-turbo engine is the current bmw to have if you wish to put down big numbers rather comfortably.