2JZ-No-Sh*t
Well-Known Member
Exactly, for the unofficial $42k price tag, imo that thing is DOA.All this buyer's remorse and yet I haven't seen anyone disappointed that they didn't hold out for the 4 cylinder model.
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Exactly, for the unofficial $42k price tag, imo that thing is DOA.All this buyer's remorse and yet I haven't seen anyone disappointed that they didn't hold out for the 4 cylinder model.
yeah. That’s true!Hahaha watch! Calling it... bets are in... if its really making 50rwhp more... thAt top end is gonna be delicious
Are you sure you're comparing apples to apples? Is the data from the same markets? Because the whole thing is a pretty mess. Here are all the versions of these cars I can remember off the top of my head:The 2021 Supra actually uses the BMW M340i's engine rather than the Z4 M40i's engine. While the engines are extremely similar to one-another, the Supra/M340i engine's compression ratio is 10.2:1, The Z4 M40i's compression ratio is 11:1. Looking at road test data for both the M340i and Z4 M40i, it appears that the lower compression version (allows for higher boost?) is slightly more powerful - despite the engine's carrying the same output ratings.
From what I can see. It’s doable. Cylinder head cover is the same part number and it looks like everything is the same between heads except the 6 ports bored out instead of 2Nope. Different engine blocks: "B" block in B58D, "C" block in B58C.
And there are definitely more differences you can find by comparing part numbers of
https://bimmercat.com/bmw/en/search/selectCar/G29/Roa/BMW+Z4+M40i+B58D/ECE/11 vs
https://bimmercat.com/bmw/en/search/selectCar/G29/Roa/BMW+Z4+M40i+B58C/ECE/11
I will leave that as an exercise for the readers.
I agree! The RC-F has another Toyota gem engine. Also before it the 1st gen IS-F V8.While not my kind of car, the Lexus RCF (467 HP 5.0 liter normally aspirated V8) is hardly a slouch. That engine also employs Toyota's outstanding D4-S dual (both port and direct) fuel injection system. As such, valve and chamber carbon buildup concerns are eradicated.
https://www.lexus.com/models/RCF
ynguldyn, thank you. I had hoped this wasn’t the case that the engine blocks (not just the cylinder heads) are different castings.Nope. Different engine blocks: "B" block in B58D, "C" block in B58C.
And there are definitely more differences you can find by comparing part numbers of
https://bimmercat.com/bmw/en/search/selectCar/G29/Roa/BMW+Z4+M40i+B58D/ECE/11 vs
https://bimmercat.com/bmw/en/search/selectCar/G29/Roa/BMW+Z4+M40i+B58C/ECE/11
I will leave that as an exercise for the readers.
That doesn’t say anything about the casings being different, just that the complete short blocks are differentynguldyn, thank you. I had hoped this wasn’t the case that the engine blocks (not just the cylinder heads) are different castings.
Fully in house dev, TMG/GR, like with the GT4So this other car..., when could we expect you to spill some beans on this? My main question would be, is there going to be a collaboration with another brand (perhaps another German brand) to produce this car, or is it an in-house deal? I understand you can only say so much, but It's always fun to poke and prod a little. Thanks for keeping this place fun!
While not my kind of car, the Lexus RCF (467 HP 5.0 liter normally aspirated V8) is hardly a slouch. That engine also employs Toyota's outstanding D4-S dual (both port and direct) fuel injection system. As such, valve and chamber carbon buildup concerns are eradicated.
https://www.lexus.com/models/RCF
Have you owned one? I did for 2.5 years and couldn't wait to get out of it! Granted most of the problems were related to the ECU and transmission, and not the engine, but that's my point. Toyota took what should have been a decent platform, gave it a chassis that was already ponderous handling wise, and then completely neutered it between throttle response and gearing. Great stereo and decent trunk space - so I guess there's that going for it - it's why you pay $75K+ for a "sports car" right?I agree! The RC-F has another Toyota gem engine. Also before it the 1st gen IS-F V8.
Ah, ok. So at minimum that would refer to compression ratio differences denoting one full *short block* assembly vs another.That doesn’t say anything about the casings being different, just that the complete short blocks are different
I apologize for the confusion, I misspoke (though I've clarified in other posts):You are correct about the reasons why the B58C exists (very strict emissions compliance in certain markets) and I agree with you about the likely multiple reasons why the first globally sold model year got the B58C variant.
However I beg to differ about Toyota's "absolute shit performance" despite their strong reliability. That's certainly not how my stock 2JZ-GTE feels every time I get it down the road, lol. Modified it would be even better but it's the exact opposite of "shit" performance even in full stock configuration.
Same for the 1JZ-GTE twin turbo, 1JZ-GTE VVT-i single turbo, 3S-GTE gens 1-4, BEAMS 3S-GE, 4A-GE and 2ZZ-GE powered cars.
Granted now we're talking about BMW engines with only some very limited Toyota input into their design and revision but as far as Toyota's past history of sporty engines goes...
It's certainly no real indication, but the technical drawing certainly seem like it would be possible, it appears all assemblies are in the same positions so likely the bolts are as well. Could easily be like it was with the B16/B18 heads on 90's Hondas... swapping being fairly easy. I wonder what the results would be in this case... higher flowing head with higher compression pistons block. It's the coolant flows that I think might be the "wrench in the works" possibly.Ah, ok. So at minimum that would refer to compression ratio differences denoting one full *short block* assembly vs another.
We need the part numbers for the raw blocks sans rotating assemblies... if they are even sold bare.
I haven't owned either the old IS-F or current RC-F, no so I will have to defer to your personal experience with those engines. I completely agree about the chassis design (over 4,000 lbs for a midsize performance coupe? Woof) and the transmissions and gearing they were both paired with but the engines alone, even if hampered by the cars they were fitted into, are still impressive compared to a ho-hum Camry engine.Have you owned one? I did for 2.5 years and couldn't wait to get out of it! Granted most of the problems were related to the ECU and transmission, and not the engine, but that's my point. Toyota took what should have been a decent platform, gave it a chassis that was already ponderous handling wise, and then completely neutered it between throttle response and gearing. Great stereo and decent trunk space - so I guess there's that going for it - it's why you pay $75K+ for a "sports car" right?
Granted they fixed some of that with the "Track Edition" release... but now you're in another price bracket. It's certainly better than driving all the rest of the Lexus line, but it was a pale shadow of what it could have been had it not weighed over 2 tons and been a 3-car frankenstein chassis. Compared to even the 2020 MKV it's a bit weak... hell, compared to my G37S it felt a bit weak (not in acceleration but in handling and overall livability).
What I will hand to them easily was the engine sound - that V8 was heavenly over 4K... almost made you forget that a Mustang or Camaro was faster for half the price. If it weren't for the fact that the first year depreciation was close to $35K I'd be much more bitter... I only paid $50K for mine... the original owner paid just over $80K! They got every option including the cold weather package - then dumped it after 10 months and 12K miles.
This is the kind of special edition I am looking forward to, when Toyota finally gets their hands dity : )Fully in house dev, TMG/GR, like with the GT4
Now that is worth trading up for... too bad the price is likely to be "like with the GT4" as well. I hope for their sake they can keep it under the price of a Cayman GTS 4.0... because that is ticking all the boxes IMO.This is the kind of special edition I am looking forward to, when Toyota finally gets their hands dity : )
From what A70 has said before... somewhere between $85k-$95k MSRP?? And that is before the inevitable insane dealer markups which will surely bump the price well into six figures.Now that is worth trading up for... too bad the price is likely to be "like with the GT4" as well. I hope for their sake they can keep it under the price of a Cayman GTS 4.0... because that is ticking all the boxes IMO.