Engine choice on a -79 olds Hurst

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Need Batmobile said:
... please prove me wrong, i do want a olds engine....

Here's one for starters. Twin turbo small block olds with proven 945 HP:

http://72.22.90.30/phpBB2/viewtopic.php?t=64757

You might want to browse this list of Olds engine builds to get some ideas:

http://72.22.90.30/phpBB2/viewforum.php ... 1196c7aa93

I'll be the first to admit that an engine designed for max performance on a road course is not the same as one for a drag strip. I still believe, however, that you want maximum area under the torque curve. A short-stroke sewing machine motor may not be your best bet. The higher RPMs are necessary when racing rules limit displacement. If your displacement is not limited, I can't believe that a smaller motor is better.
 
I ve been to Norway and seen many different combo's (Volvo's with SBC etc.) I would go with the 302 Chevy because it will be easier to gather parts and make the work. But if you have a donor Mustang (Complete Car but wrecked) and machine shop. The Ford driveline would be different. Also grafting the BMW suspension could be grafted onto the Olds..Show us pic's when your done.
 
Need Batmobile, Probably the current Chevy LS series engines. They even have a small 4.8 liter. Wow your stroke ideas are a different train of thought. I am not saying it is wrong for your application just not what I am used to for the applications or goals of the street engine projects I am used to. Horsepower (700hp 4cyl) can be great but don't forget even on a well geared race car their is value in both amount of torque and in where its at in the rpm range and how broad the torque curve is. And yes I understand turbo applications come with generous amounts of torque so I am taking that into account. BTW I own and have ran a turbo Buick v6 for years.

"stroke is all about the math. slower piston speed = less stress drag heat and wear on the engine." Agreed but that whole statement assumes / requires the same bore. To make an apples to apples comparison you have to make both engines the same size. Because if you don't you have to spin the smaller engine harder or turn more rpm to make the same power and in doing so you generally get back to the same piston speed or rather overall stress drag heat wear that would come from turning more rpm.

I am generally from the rpm stands for ruins people motors camp. As rpm goes up stress goes up exponentially. Literally. As you said its all about the math. As rpm & stress go up reliability goes down. I hate having to tear apart spend and fix things that I spent good money time and work to put together. If I can build an engine that makes the power I need from 2 to 5,000 rpms why would I build one that takes 4 to 7,000 rpms to make the same power? Again that is in general because there are times or applications or class rules where it is better to use the smaller engine and just put up with "the cost of doing business" so to speak for those needs. But if you don't have a specific reason to limit yourself to a smaller spin the snot out of it to make the power I need well go bigger.

BTW the Old 425 built right can handle a lot of rpm and live and live. You might querry especially Olds engine building questions at least if you have the money and would consider him for building an engine to Bill Travato at http://www.btrperformance.com. Not many professional engine builders here so beyond fun general questions & ideas you would need to seek out professional performance engine builders as I am sure you already know.
 
Thanx guys, got some good ides here. to anwere the question why im building a small Ci high rpm engine. I love to rev. i think its a cultural diffrens 😀 and the small displacment from the short stroke dosent mather that much when u have turbo, if you boost the double amount of air of what a 300ci N/A engine can take in, you will have the power of a 600 Ci engine (roughfly) and you can lower the boost when u crusing. i grow up with german and swedish cars that could rev up to 7000rpm stock. and NOTHING beats the sound of a V8 at 9k rpm 8)
Dont get me wrong i gote a regular -79 calais to with a BBO 455 and the torqe of that thing is mind blowing. now i want a track/street Olds to that reevs like a bike, just becuse :mrgreen:

I checkt out the ford 289, will give cobra automotive a call on moday, they seem to have some experience with high reeving v8s.
I also want to rebuild my 425 and put it in my calais 😀 thanx for the links Joe and Mr sh*t lookt at mondello before but people dont seem to like that guy :roll:

Btw does any one have som experience with coast high performance, good or bad engines??
 
You should probably forget both the small block chevy AND the small block Ford. They are both outdated nowadays, anyway in Europe. The LS series engine can easily be made to fit your car, motor mount kits are already out there. Lots of vans and pickups have the smaller displacement variants in Europe already.

I don't think aftermarket chevy parts are necessarily any better than than stock Olds parts. Lots of those great aftermarket chevy parts are just chinese JUNK. You have to be very careful when you order aftermarket stuff now.

Anyway, there are other options. Ever seen a Buick 300? I know you must have seen the 215 Buick V8 with aluminum block. Buick sold the platform to Rover and they ran it all the way up to 4 liters in their trucks all the way up into the 90's. You get one of those Rover V8 engines, put a 300 Buick crank in it, and you have a real revving V8 that is still reliable. Only a few oiling mods need to be done and you can the instructions and parts from TA performance.

Just a thought.
 
How did a 79 H/O get to Sweden anyway? Find someone in the U.S. with $, trade them the H/O for a cheby if you want to put a cheby engine in something. Why does everyone want to butcher up the rare oldsmobiles :?:
 
78 salon said:
How did a 79 H/O get to Sweden anyway? Find someone in the U.S. with $, trade them the H/O for a cheby if you want to put a cheby engine in something. Why does everyone want to butcher up the rare oldsmobiles :?:

my guess is a soldier brought it over and sold it after finding out how hard it is to maintain a car never sold in said market!
 
Nope. As i said i bought it from new york last year, mint condition with 22000miles. its the 21 century. god bless ebay 😀 we have a lot of US car part dealers in europe. no problem at all to find things. And scandinaviens (norway sweden finland island denmark) love US cars, gote a lot of old classics here. Actualy, a lot of cars get shipt to sweden and restored and some find its way back to the US.
If some one can find a 79 olds calais in good condition with black interior i will be happy to swap it with my H/O, havent really done any thing to it yet. the 350 engine is back in it. If u want to save the car. im no monster :mrgreen:
 
KrisW said:
...I know you must have seen the 215 Buick V8 with aluminum block. Buick sold the platform to Rover and they ran it all the way up to 4 liters in their trucks all the way up into the 90's. ...

4.6 liters, actually. There were a few 5.0 liter versions built for the TVR sports car as well. I'm getting ready to build a stroked 4.6 to go into my 1962 F-85 wagon in place of the original 215 (3.5 liter). It's a bolt-in swap.
 
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