New Supra Specs and Pricing
Jan 16, 2019, 04:07 PM
#76
The 4b11 was certainly a move for emissions, as well as better performance. Rear mounted turbo puts the cat closer to the turbo outlet, means the cat lights off faster. The cylinder head (stock) has very small exhaust ports, which run higher EGT's than the 4g, again, to light the cat faster. Stock for stock the 4b11 head outflows the 4g head. Dual MIVEC is used as EGR and/or simply letting the air flow through the cylinder instead of staying in the cylinder, again for emissions. Obviously it can also be used for performance gain. The all aluminum construction is lighter. The 4b11 comes with a much better factory intake manifold.
The biggest thing you're missing is probably the position of the cat relative the turbo outlet/exhaust ports. Since ~2005-2008, OEM's have been getting the cat as close to the exhaust outlet of the engine as possible. Look at even the first VW 2.0T's, the cat is literally 4" past the turbine wheel...lol
The biggest thing you're missing is probably the position of the cat relative the turbo outlet/exhaust ports. Since ~2005-2008, OEM's have been getting the cat as close to the exhaust outlet of the engine as possible. Look at even the first VW 2.0T's, the cat is literally 4" past the turbine wheel...lol
That's true, I haven't thought of that! Pop the hood of an older civic, the cat and primary o2 sensor are right there dead center.
Jan 16, 2019, 04:25 PM
#78
EvoM Guru
iTrader: (1)
Jan 16, 2019, 05:38 PM
#79
https://www.roadandtrack.com/car-sho...der-us-market/
Just some more info if you haven’t seen yet. If you don’t feel like reading it basically says the the US won’t see the 4 cylinder.
Just some more info if you haven’t seen yet. If you don’t feel like reading it basically says the the US won’t see the 4 cylinder.
Jan 16, 2019, 06:00 PM
#80
https://www.roadandtrack.com/car-sho...der-us-market/
Just some more info if you haven’t seen yet. If you don’t feel like reading it basically says the the US won’t see the 4 cylinder.
Just some more info if you haven’t seen yet. If you don’t feel like reading it basically says the the US won’t see the 4 cylinder.
Jan 17, 2019, 04:27 PM
#84
2 more downsides, its a McCrap strut unlike the MKIV double wishbone... and tire fitment is tight... doesn't look like there's much more room for bigger tires
Jan 17, 2019, 05:07 PM
#86
I mean yes there are better and worse McStrut setups, and BMW is one of the better ones. But double wishbone is still better mostly due to camber gain under compression. that and you the turning axis of the wheel isn't directly on the most loaded part of the suspension.
E92 is a McStrut setup.
E92 is a McStrut setup.
Jan 17, 2019, 05:11 PM
#87
I mean yes there are better and worse McStrut setups, and BMW is one of the better ones. But double wishbone is still better mostly due to camber gain under compression. that and you the turning axis of the wheel isn't directly on the most loaded part of the suspension.
E92 is a McStrut setup.
E92 is a McStrut setup.
Jan 17, 2019, 06:23 PM
#89
i meant the brake ducts, sorry that wasn't clear at all lol. e92 doesn't have brake ducts, it has mcstruts yes. but the front grip difference between the e46 and the e92 is substantial. it may be related to how they do the ball joints or connection points or whatever. bmws also use a ****ton of caster to make up for it. anyway the gap with current day mcstruts vs more complex, heavier double wishbones of old is not that big
really? my e90 328i had brake ducts... but it did have the sport package so maybe thats what adds the brake ducts.
no matter what you do, you can't make a McStrut car gain camber. The improvement they have seen is that they're better designed now to not lose camber, but they still don't gain camber. I mean don't get me wrong, its not the end of the world, plenty of McStrut cars handle well. just pointing out that the old car had a better front sysension design. with with todays aluminum control arms and the fact that shocks are a lot lighter than struts cause they're not a structural member, weight difference is minimal. having the space for a double wishbone setup is the biggest issue. well that and it costs more since you need one more control arm and another mounting point on the chassis/subframe to reinforce.
Last edited by WarmMilk; Jan 17, 2019 at 06:29 PM.
Jan 17, 2019, 06:28 PM
#90
like I said above, the only cons of a double wishbone setup is costs and space.