Van

I agree with Joe. A healthy, well spec'ed turbo motor should be dead reliable.

I'm sure an LS1 would be reliable too - but before going that route, get some answers on weight and car balance. My intuition is that an LS1 motor weighs more than a 951 motor... Plus it'll require more custom parts.

M758

Keep the 924S.... Anyone can run a C5...

At 230 whp the 968 motor is a good choice. However 968 motors work best when stock or near stock. They suffer when you want more power since it just is not easy to get. 944 Turbo's shine at modest power bumps. Done right the power is easy, inexpensive per hp and reliable. Most turbos get a bad wrap from trying push it to 350-400 whp by just cranking up the boost. These will have issues.

pjburges

How about the Audi 5cyl? That would be fun to beat up on the vettes with. That motor has all forged internals and a cast iron block stock, and I have seen with my own eyes a 600hp motor...300 would be a walk in the park for it.

Same bellhousing as 924T with cheaper clutch options, shorter in length that the porsche 4 cyl bringing the weight more to the center of the car. Sounds sick on boost.

Lemming

Less than 40 lbs difference from what I have seen and that's compared to an NA engine. Add the intercooler, plumbing, and pipes and it's likely a wash.

ritzblitz

the audi motor would be badass but the parts would be hard to find.

But consider the weight difference from the 968 engine. Isnt a 951 engine heavier? The LS1 heavier still?

V2Rocket

get an aluminum block vortec 5.3, 335hp at crank from factory and theyre about $1000.

Rogue_Ant

A set of good cams, and ITBs would be sweet, IMO.

Sirenty

Mine was recently corner balanced and, if I remember correctly, it was 49.x% front, 50.x% rear with a half tank of gas. It weighed 2950 total. Mine is a street car, though (for now).

So I'd say the balance is pretty good, and the handling is insane. But I have KWs on there too.

DVC

Tim- You know what you need to do Guaranteed you will NEVER never look back. Tom should be pretty close to you, I'm sure he could help.

Lemming

Alum LS1 engine is right at 400 lbs, about the same as a 968.

This is absolutely an option and there are a number or PorVettes running these. I'm thinking LS1 because they can be made to have even more power if my thirst grows.

Yes, but at substantial costs.

Mine is nicely sprung on Leda's. Corners very well.

Tom's only a few miles away and he has already told me that he will guide me through the process. I'm going over there next week to see the current V8 build.

Rogue_Ant

Meh - an LS1 is a substantial cost.

Besides, I'm betting the DIY'er could do ITB and cams fairly frugally.
Just do a google search for "DIY ITB", and get all kinds of threads of guys building their own ITB setup from a hacked stock manifold and motorcycle throttlebodies on the cheap.
Cams can be re-ground, and there are plenty of places that should be willing to do that. Try contacting these guys:

Colt Cams

Their "Tri-Flow" grinds look especially interesting. I received a quote from them in the past, for a set of cams (16v DOHC 4cylinder) for $500. And that price included the R&D since they have not done the cams before. I bet a small group buy could significantly lower the price as well...


-Rogue

JimV8

Start with the most capable chassis and fit the largest most powerful engine you can.

FRporscheman

2.5 turbo - cheapest and easiest way to get more power, especially if you sell a 968 engine to recoup some money. This is what I want to do too. I haven't had a FI car either, except a very slow turbodiesel.

Reimu

What's a decent price for a fair 951 engine anyways?

944CS

Here is another option

https://rennlist.com/forums/924-931-...velopment.html

except I would intercool it, even at low boost