Jump to content
Get the Cheers & Gears App! ×
Create New...

How to keep the V8 around: Make it smaller, add turbos

Recommended Posts

So, I just had a thought pop into my mind:

Imagine the future of the V8 as this:

4.0L, twin-turbo, SIDI, 500+HP. How, you ask? Stick two 2.0L SIDI Ecotecs together and that's what you have. I don't know if that would work, but it seems plausible enough. It would deliver pretty good fuel mileage as well, I think. Image the other possibilities, too. The same HP/L (130 is what the 2.0 gets, but lets use 125) out of a 3.0L would yield 375 screaming ponies. A 3.5L would make 435HP... and so on... I think you can do the math easily enough.

With forced induction being the wave of the future, IMO, I think we could see "big" V6s drop down to the 2.8-3.2L range from the current 3.5-3.8L range with the addition of turbos and direct injection improving fuel efficiency while keeping the same HP levels (around 300). V8s can still thrive where they're at now, at the 300+HP level, but they'll make the fuel economy of a V6 because of forced induction.

A 4.5L version of this engine would make in the neighborhood of 560HP. A 5.0L could be the range-topping mode, use higher-performance parts to put it at 130HP/Ll and make 650HP... on the same level as the LS9 but significantly smaller.

"Detuned" versions could make in the neighborhood of 100HP/L.

Best of all, these engines would still keep the amazingly flat torque curve that everyone loves from a V8 while becoming drastically smaller and more fuel-efficient. It would likely require fewer ponies to achieve the same performance as well, seeing as how these engines would likely be lighter than the big V8s of today.

I think this is the future of the V8. BMW is already onto it with the upcoming twin turbo they have. Perhaps this is why GM is wanting to get into the V8 business with BMW? Sounds good to me...

Link to comment
Share on other sites

have you drove a production turbo lately? Turbo lag is non existent. It feels like you wait longer for the trans to react then the turbo to spool. They have come a long way. After market stuff is different,but all the auto makers have got it down now.

You do have to consider there is more to go wrong. once you cut the average V8 size down there is lees room for beefy components that have become known with V8s and there reliability. It then becomes more costly to make. stronger thiner parts are required. I'm not against it at all. I would love a 3.5L V8 but, as i deal with things like this in a way(machining and prototyping) it just doesn't make sense or is cost effective. The reason is because they now make really good v6's and I4's. I predict the come back of the I-6.

look at the Lincolns LS and Thunderbird 3.9L v8 made 290 hp and only gets about 18 mpg average and sounds $h!ty next to any other v8.

I hope im wrong but i just dont see it happening.

Link to comment
Share on other sites

Why not make cars lighter and put 300hp, ethanol burning, turbo 4-cylinders in them?

I don't see cars getting too much lighter, but obviously we're already going to have 300HP turbo 4s. You aren't going to get 500HP turbo 4's, however. That market isn't going to shrink much regarless of gas prices; the wealthy won't care.

I'm all for making V8s smaller... especially if they end up like this:


That's somewhat how my idea came about, and the screaming sound these engines could make.

Link to comment
Share on other sites

I'm all for making V8s smaller... especially if they end up like this:


I like my engines to last more than 500 miles before a full rebuild is required.

Link to comment
Share on other sites

I've been talkjing mini V8s on this forum for years.

Remember the 1.8 liter V6 in the Mazda MX3 GS?

BMW was supposed to be looking into micro-displacement

large cylinder count technology in the mid 1990s... not

sure why everyone dropped the ball.

The BOP 215 was 3.5 liters, even 2.8-3.0 would be enough

for a small RWD car that would pick up where the 1980s

G-body left off in 1987.

Link to comment
Share on other sites

Join the conversation

You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Who's Online   1 Member, 0 Anonymous, 58 Guests (See full list)

  • The Jeep Gladitator gets a gentle refresh for 2024

    Jeep is understandably reluctant to mess with success, and the Jeep Gladiator has been one of the brand's greatest success stories in the last decade.  So when it came time to give the Gladiator a nip-tuck, Jeep went in with the gentlest of hands. The biggest visual update is a refresh of Jeep's iconic 7-slot grille, windshield-integrated trail-ready stealth antenna, and seven all-new wheel designs. Inside is a redefined interior with more technology and amenities, including available 12-wa


    GMC Upsizes the Acadia for 2024; New 2.5L Turbo-4

    GMC caused a stir in 2016 when it downsized the Acadia in 2017 from its previous near-Yukon length. That downsize brought the Acadia down to be inline in size with the contemporary Jeep Grand Cherokee.  In the years since, the Grand Cherokee has grown and GMC is matching that with the 2024 GMC Acadia. Inches matter in this class and in that the Acadia gains (back) 10.6 inches in length and 3.2 inches in height. That equates to 80% more space behind the third row and 36% more space behind th


    Cadillac Refreshes the CT5 with an Updated Look for 2025

    Today at the North American International Auto Show in Detroit, Cadillac unveiled the refreshed Cadillac CT5 sedan.  CT5 retail sales have been on an upswing of late, increasing over 35%.  In a time when sedan sales are stagnating or disappearing entirely, Cadillac's positive numbers have given hope that the luxury sedan market isn't quite dead yet. The refresh of the CT5 begins with the exterior. A new larger, bolder grille is flanked by new vertically stacked headlamps and Cadillac's sign


  • Create New...

Hey there, we notice you're using an ad-blocker. We're a small site that is supported by ads or subscriptions. We rely on these to pay for server costs and vehicle reviews.  Please consider whitelisting us in your ad-blocker, or if you really like what you see, you can pick up one of our subscriptions for just $1.75 a month or $15 a year. It may not seem like a lot, but it goes a long way to help support real, honest content, that isn't generated by an AI bot.

See you out there.


Write what you are looking for and press enter or click the search icon to begin your search