Blown engine and rebuilding my 308

Mike,
That really was a good deal. A nice car too. Glad it went to somebody with the mechanical skills to fix it up. Afterwards you will have a sweet ride!
Post some pictures when you get a chance.

Best regards. DJ

 

It's all yours Erik. If the rest of the car has been maintained like the engine I don't think I could pay much more.

Sorry Dan but the pictures are pretty gruesome.

Save yourself the hassle and hidden surprises and go for a long block from T.Rutlands. You'll have the car on the road for less and a lot sooner.

 

'Tis easier to build a motor and drop the lump in than worring about frame alignment.

 

tis true Judge! tis true!!! but what you all dont know is the only thing bent is the small " ear" the radiator sits on, on the left side. here in the dirt ( ga ) we build dirt track cars from scratch out of square frame tube. fixing the 2 inches of tweeked radiator support will be a cinch, besides i can always chop it up and sell it to T Rutlands. but MIkeP and the other owners really took care of the car, i feel its worth it to keep it, Marrone color and all!! i do agree Judge that "frame work" is a touchy thing, i could not have hoped for a better guy than Mike P and all the reciepts and knowledge he has shared! i would like a red one one day though!!!!!!!

 

Ahhh...emissions cams. The earlier pre-cat cams pull nicely to 7500 and 190-200 rwhp for what I've seen....the way ferrari intended the engine to run, that would be a nice upgrade. On my QV, the power rolls over at 6800-6900, a little better....I've been following Russ's progress to see what a little more cam does in a 3.2. I'd like a little broader power curve, more like the early 308s...although bigger cams have more overlap and that will reduce my boost which is BAD.

 

Hey Mark,
When did these emissions cams begin to show up? '78? '77?

Birdman

 

Yeah, I know.............
I am hoping to re-index the cams to Euro 'event timing' on my next 30k. I heard one can duplicate the Euro specs with the intake cam but the profile is different on the exhaust cam preventing an exact set up. A few horse power to be gained from what I have read. Might help the power band a little too.

What are the cams that Russ is going to use?

It's times like this I wish I had port fuel injection instead of carbs. Easier to set up a boost system.

 

1978 was the year. The car still runs pretty good but because of the weight (3225 dry) it could use another 100 HP to bring it into the 'power to weight' catagory of today's performance cars.

Still fun to drive once you get the momentum up, which by the way, will win more races than horsepower alone.

 

That's the reason I buy EXCLUSIVELY the '77s. LOL!

 

I was wondering why the HP petered out around 210.

 

Just a note about running RPM past the HP peak. Why??? Speed baby, speed. Most every engine redlines past the peaks, and unfortunately it is sometimes followed by a sharp valley and a lot of fog.

 

I didn't know any better at the time and it had to be a GTS.

 

Web cams can help you camshafts. Cosworth or JE can do custom pistons to whatever compression ratio you want. Norwoods can get you custom valves and guides, plus im sure they can do whatever head porting work you need. They can also help you with clutch questions and camshafts for that matter.

I would not drive a supercharger off the camshaft. Drive it from the crankshaft. You will need to engineer a new set of pulleys to run a much larger belt, Norwoods may be able to help here as well.

Your going to end up with $50K in a 308. Thats fine if that what you want..... but its not a big stretch to just buy a 355 and have a car that is faster, handles better and brakes better.....

OR spend $30K on a really nice '95 993, drop another $10K on suspension, intake and exhaust upgrades plus seperate wheels/tires for the track and go faster than any V8 Ferrari short of a GTO, F40 or 360.

That said.... the 308 is a great looking car and a tricked out supercharged version would be a hoot!


Terry

 

I would not do that. The blower can draw 30-80 hp depending on the boost you run and type of blower. Moving that much power through the timing belt seems like a very bad idea knowing what happens to the engine if it breaks.

It depends on how much power you are actually going to make. The stock clutch is fine to at least the 240 the early cars had, probably 300 would be ok. Above that a kevlar unit from Norwood or italia design is probably the way to go. I ran one for 2 years and about 15k (abusive) miles on a 350ish hp engine, it was about $700.....the 600ish engine absolutely fried it in about 2 weeks. I now have a Tilton triple disc carbon-carbon unit, it laughs at high rpm slipping, handles something like 800 ft-lb torque, is much lighter, and the pedal is softer than a honda civic...a wonder piece as it should be for $3500..and it's nothing like a bolt in, figure $5k if you want them to set it up for you.

Click on the sponsor tab. Norwood or Nick should be able to supply what you need.

The early cams peak at 7500 and will probably pull easily to 8K, but the exhaust vavle break unless they've been upgraded to stainless. The later cams pretty much fall on there face above 7500 as the graph shows.

They could also supply you with a 3.2, that will make the numbers you're looking for. Just a thought.

 

I set my QV cams to the euro number and it did what they claimed, the hp peak stayed at about 6800, but the troque peak dropped from 5500 to 5000, making the power a little broader. It was a nice improvement.

Russ is adding 20 degrees to the intake cam if I recall correctly and thinking it will gain him about 20hp....which is 40 ro 50 hp at 20psi boost

EFI is not hard to add...although a bit pricey, plan $2500- $3000, and I doubt very much that once you have boost you would ever want to go back.

 

The results of redegreeing the cams sounds encouraging. I have to finish my shop before I get into that stuff heavy. Hopefully this winter.

I would love to convert to port injection with a blower but I just dropped 30k on my garage. I'll have to settle for less power for a while...............

At least I know who's ears to bend when it is time. Between you and Russ I think the mods are nailed down.

 

I wish you all the best, Dan.
I know exactly how you feel, if that happen to me I would just jump at it to get it back to its original state or better. But since I am in Thailand, and if that happened to me I will be looking at about $25,000 US the least to fix.

Keep us posted and take pictures every steps of the ways, believe me we all behide you.
Pat