C8.R engine next year. ???
04-14-2019, 12:33 PM
#1
Drifting
Thread Starter
C8.R engine next year. ???
So Doug Fehan has stated the C7.R will run its last race for Team Corvette at Petit Lemans this fall, the finale of the 2019 IMSA season. We will see the C8.R race the first time at the Daytona 24hr 2020. My guess is the new car will carry over the 5.5L pushrod engine being used in the current car. Anyone have different information on that subject?
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Mikec7z (04-15-2019)
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04-14-2019, 01:05 PM
That definitely isn't the same 5.5
04-14-2019, 02:18 PM
#3
Le Mans Master
04-14-2019, 02:37 PM
#4
Whatever it is.. it does sound good, but it'll just blend in with everything else on track.
That thunder you could feel in your guts that the C5, C6, and C7Rs rumbled out will be missed.
That thunder you could feel in your guts that the C5, C6, and C7Rs rumbled out will be missed.
04-14-2019, 03:01 PM
#5
It will most likely be around a 4.0L TT DOHC V8, based off the Z06 type model’s 4.2?L mill. Based on leaks, sounds and class regulations.
Last edited by Latterlon; 04-14-2019 at 03:01 PM.
04-14-2019, 03:45 PM
#6
Drifting
Thread Starter
You guys are right. No nat asp pushrod engine in the vid. So I guess Pratt & Miller will do some engine development for Corvette that us mortals should benefit from in future higher performance models. It makes sense when you think about it. Jump in with both feet and develop the whole package as it will likely be for maybe 4-6 yrs down the road. (Hopefully no electric before then) 2020 will be an added challenge with EVERYTHING new for Team Corvette. They’ve always met their challenges before.
04-14-2019, 06:39 PM
#7
Le Mans Master
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There is absolutely no way to tell from the sound whether it is or isn't pushrod.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
Last edited by Warp Factor; 04-14-2019 at 06:54 PM.
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Mikec7z (04-15-2019)
04-14-2019, 06:57 PM
#8
Le Mans Master
There is absolutely no way to tell from the sound whether it is or isn't pushrod.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
04-14-2019, 09:52 PM
#9
Race Director
What is the class rules on engines? Do they have to be available in the production car? If so it is a pushrod V8. Would rule out a V6 or a 4 banger and a DOHC V8. If they can run anything they want then all bets are off.
04-14-2019, 10:06 PM
#10
Pratt and Miller have been building the C7R motors in their own shop for sometime now. It will be interesting to see what motor IMSA permits and what the boys at Corvette Racing do with it,
04-14-2019, 10:12 PM
#11
Drifting
Thread Starter
Short answer is there are rules but exceptions are made.. Corvettes have been using DCT transmissions for a half dozen years now without ever offering one to date ... direct injection was being used in the race engine before the LT1 was on the road with it. Heck, the Ford GT was racing a year before the street version was in hands of a customer. I believe even if Corvette only offers a pushrod LT2 nat asp engine in the 1st year C8, they’d have no problem getting a waiver to use a TT DOHC V8 of similar architecture to what we’ll see in the production C8 in future years. My own opinion is that the race car won’t see a turboed V6 or 4 cyl UNLESS similar engines are being planned for the street version in the next year or two, which I DOUBT!!!
04-14-2019, 10:42 PM
#13
Race Director
Short answer is there are rules but exceptions are made.. Corvettes have been using DCT transmissions for a half dozen years now without ever offering one to date ... direct injection was being used in the race engine before the LT1 was on the road with it. Heck, the Ford GT was racing a year before the street version was in hands of a customer. I believe even if Corvette only offers a pushrod LT2 nat asp engine in the 1st year C8, they’d have no problem getting a waiver to use a TT DOHC V8 of similar architecture to what we’ll see in the production C8 in future years. My own opinion is that the race car won’t see a turboed V6 or 4 cyl UNLESS similar engines are being planned for the street version in the next year or two, which I DOUBT!!!
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c7twlblue (04-15-2019)
04-14-2019, 11:14 PM
#14
Drifting
Thread Starter
04-14-2019, 11:47 PM
#16
. You are correct sir: they use a paddle actuated sequential manual transmission .. the clutch pedal is used only when starting out, then its paddle shift only... scroll ahead to 3 min to see Tommy Milner in the C7.R in action https://www.roadandtrack.com/motorsp...-corvette-c7r/
Corvette racing drivers just have mad skills crazy how loose the car is on that out lap on cold tires.
Can't wait until Daytona 2020 and the arrival of the C8 if any of you have never been to the hours you have to go. Just an amazing event for any true car guy or gal.
04-15-2019, 12:27 AM
#17
There is absolutely no way to tell from the sound whether it is or isn't pushrod.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
What I can say is that if it's a V-8, it's only revving to about 4500 rpm.
So it's more likely that it's a V-6 revving to 6000 rpm, or a four-banger revving to 9000.
GM produces a lot more of these smaller engines than the V8's, so using one of these smaller engines might have the most promotional value.
04-15-2019, 04:48 AM
#18
E-Ray, 3LZ, ZER, LIFT
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Most likely, IMO, it will be a variant of the Caddy Blackwing being built in Bowling Green modified to fit the ME location.
My guess is that will be the engine used for the “Z06 variant” at whatever hp GM decides is desired. Easy to pick whatever twin turbo size that floats your boat! Although it will probably not be available for sale initially it may be at the July Launch as “coming soon!”
Fits the future ZR1 as well, which we have already heard has been tested at 1000 hp. But I’d also guess it’s ICE would be less by the amount of the electric FWD it will incorporate.
My guess is that will be the engine used for the “Z06 variant” at whatever hp GM decides is desired. Easy to pick whatever twin turbo size that floats your boat! Although it will probably not be available for sale initially it may be at the July Launch as “coming soon!”
Fits the future ZR1 as well, which we have already heard has been tested at 1000 hp. But I’d also guess it’s ICE would be less by the amount of the electric FWD it will incorporate.
Last edited by JerryU; 04-15-2019 at 04:51 AM.
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Mikec7z (04-15-2019)
04-15-2019, 05:18 AM
#19
Le Mans Master
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I have an audio program, but can also do it by ear.
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Mikec7z (04-15-2019)
