2018 "Y" car code, LT5 engine code: ENGINE GAS CYL, 6.2L, SIDI, DOHC, VVT
12-23-2016, 05:40 PM
#2
Team Owner
Pro Mechanic
Wow. I can't believe it. Seems pretty legit though. Going by displacement, it almost seems like they're putting DOHC heads on the Gen IV block?
They going to be buying heads from Mercury?
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They going to be buying heads from Mercury?
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Last edited by Tom400CFI; 12-23-2016 at 05:42 PM.
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tpepmeie (12-23-2016)
12-23-2016, 07:49 PM
#5
Team Owner
Pro Mechanic
Really? I was seeing "SIDI" which I was interpreting as meaning "Sequential InDirect Injection". IDK though.
12-24-2016, 06:06 PM
#6
Team Owner
Pro Mechanic
SIDI is Spark Ignition Direct Injection...the term is used to differentiate from compression ignition (diesels) which are always direct injection. While direct injection is relatively new to gas engines, diesels have always been direct injection since the beginning. One hundred years ago, direct injection technology was very primitive while carburetors were simple and accurate which made the gas engine superior to diesels. Now that technology has made significant advances with computers, direct injection can be precisely controlled and diesels are now better than gas engines in many ways...weight is their biggest enemy but gains are being made there too.
https://www.allacronyms.com/SIDI
https://www.allacronyms.com/SIDI
12-27-2016, 10:17 AM
#7
Le Mans Master
I'm hoping to see a TT DOHC from the boat folks
they can use the LSX block or whatever they want just give me 750 ponies with supreme tractability and an 8500 smooth power band with the ability to go and get a bit more on e85 if available.
the technology is all there, hell, give it two DI nozzles and maybe a direct port meth (oh wait, that's MY job).
I just scored a cheap saturn sky and I have to say DI and turbos go well.
they can use the LSX block or whatever they want just give me 750 ponies with supreme tractability and an 8500 smooth power band with the ability to go and get a bit more on e85 if available.
the technology is all there, hell, give it two DI nozzles and maybe a direct port meth (oh wait, that's MY job).
I just scored a cheap saturn sky and I have to say DI and turbos go well.
12-27-2016, 10:40 AM
#8
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12-29-2016, 09:45 PM
#10
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Since the LT4 is 650HP, I would expect the LT5 to be more. As the article indicated 700 might be "difficult," but I'm sure Corvette developers want this to be close to that.
12-31-2016, 08:52 PM
#11
Hasn't the Vette been approaching RWD traction limits for years now? How do they expect to put 700 down without just melting the tires away?
01-01-2017, 09:12 PM
#12
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The only Vette I've kept over the years has been my ZR--mainly because I perceived it as a quasi-exotic (as much as an American car could be considered such at the time) with that DOHC motor & I still revere it after all these years...
I'm excited to see the next LT5--and maybe one in my garage, someday...
I'm excited to see the next LT5--and maybe one in my garage, someday...
01-01-2017, 10:48 PM
#13
Team Owner
Pro Mechanic
01-01-2017, 11:21 PM
#14
That is already HERE
the small block engine is/has been at SEMA for 3-4 years in street-rods,,merc is supposed to come out with a retro-fit DOHC eng last summer-this spring ,but I heard the complete eng[only way you can get it] is $30-40k and its a 6.0+ eng because of the valves
01-02-2017, 07:31 AM
#15
Le Mans Master
that's the big block engine
the small block engine is/has been at SEMA for 3-4 years in street-rods,,merc is supposed to come out with a retro-fit DOHC eng last summer-this spring ,but I heard the complete eng[only way you can get it] is $30-40k and its a 6.0+ eng because of the valves
the small block engine is/has been at SEMA for 3-4 years in street-rods,,merc is supposed to come out with a retro-fit DOHC eng last summer-this spring ,but I heard the complete eng[only way you can get it] is $30-40k and its a 6.0+ eng because of the valves
the TT boat motor certainly has the zots but it's too big and heavy to really work in a front engine vette.
the new engine is intended for car applications and not yet twin turboed.
my solution is simple, GM, get it done. build a crank and block and take the ecotec parts and make a 4.4 SB TT DOHC that puts out 800
It's not that hard. The ecotech guys get that much out of 4 cyl.
Way past due, my TT Vette is still my fav due to the big torq at the tickle of the throttle.
And to keep up with the joneses the vette needs a front electric motor and a rear engine TT DOHC V8
Might have to sell all my current rides to afford one, but hopefully it will be worth the price of admission.
Last edited by Rkreigh; 01-02-2017 at 07:32 AM.
01-02-2017, 10:27 AM
#16
Team Owner
Pro Mechanic
01-02-2017, 12:33 PM
#18
Team Owner
Pro Mechanic
That is still "AWD", since all wheels are being driven. You're just using wires and a motor instead of drive shafts and gears. "Packaging" still applies; putting a E-assist front system in a current 'Vette would be nearly impossible; the electric motors would want to be right where the steering rack and harmonic damper currently reside. I totally agree. That is the direction the 'Vette should be going. It should be a technological showcase for GM...as it was with the ZR-1.
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Last edited by Tom400CFI; 01-02-2017 at 12:35 PM.
01-02-2017, 01:12 PM
#19
Le Mans Master
That is still "AWD", since all wheels are being driven. You're just using wires and a motor instead of drive shafts and gears. "Packaging" still applies; putting a E-assist front system in a current 'Vette would be nearly impossible; the electric motors would want to be right where the steering rack and harmonic damper currently reside. I totally agree. That is the direction the 'Vette should be going. It should be a technological showcase for GM...as it was with the ZR-1.
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We're on the same page 👍
01-11-2017, 06:56 PM
#20
Intermediate
It couldn't hurt the sliding C4 ZR1 LT5 values of our original 90's beast. Perhaps bringing up the value and appreciation of the original LT5? I will be interested to see the comparison of the "LOOKS" between the twopower plants. Will the new LT5 have those plastic covers? Hmmm...