New to rebuilding what is the max power i can get with the stock fuel system on a SC

[Peter Seow]

I am think about engine rebuilding when the time comes.

Now, how many bhp can i get with the stock fuel system in place.

I am think if 240-250 bhp is attainable.

I would like good torque at low rpm like how this current engine is making the car drivable.

I use my car for track/rallies and street . it's an everyday car to me.

If anybody has done it what parts are required. Please list the parts and the dyno charts if you so i know i can get.

Thank you very much.

[joetiii]

You ask a loaded question that has been answered in many posts on this site.

I would start with this post... options on SC rebuild.

Basically I think you are asking if you can make 240+ horsepower with CIS fuel injection. I'm sure there are some builders who have done this but I think the cam you would need to run would kill the low end grunt you currently have. Guys who run street/track cars w/ CIS think the 964 cam is about the limit while maintaining streetability. You are probabably around 220 HP with this combo. Here is another post that has dyno sheets. dyno results

To maintain torque you can also consider increasing the bore size to 98mm giving you 3.2 displacement. Then a more radical cam like a 964 Sport from "camgrinder" here on Pelican would be an option that gets you closer to 240+.

[Steve@Rennsport]

Originally Posted by Peter Seow

I am think about engine rebuilding when the time comes.

Now, how many bhp can i get with the stock fuel system in place.

I am think if 240-250 bhp is attainable.

I would like good torque at low rpm like how this current engine is making the car drivable.

I use my car for track/rallies and street . it's an everyday car to me.

If anybody has done it what parts are required. Please list the parts and the dyno charts if you so i know i can get.

Thank you very much.

Large displacement CIS engines (3.5 litres) can make 240-250BHP.

One should understand that such engines are NOT cheap to build as they require bigger pistons and cylinders, longer stroke cranks, machine work and twin-ignition to work properly.

With a realistic budget, it can be done successfully.

[Peter Seow]

Originally Posted by joetiii

You ask a loaded question that has been answered in many posts on this site.

I would start with this post... options on SC rebuild.

Basically I think you are asking if you can make 240+ horsepower with CIS fuel injection. I'm sure there are some builders who have done this but I think the cam you would need to run would kill the low end grunt you currently have. Guys who run street/track cars w/ CIS think the 964 cam is about the limit while maintaining streetability. You are probabably around 220 HP with this combo. Here is another post that has dyno sheets. dyno results

To maintain torque you can also consider increasing the bore size to 98mm giving you 3.2 displacement. Then a more radical cam like a 964 Sport from "camgrinder" here on Pelican would be an option that gets you closer to 240+.

I am wondering if the stock fuel system can provide enought fuel for an engine with 240 bhp. My is a euro version with a stock 204 bhp engine. I was think if 36 bhp more is achievable from the fuel system?

Thanks for a ll the help. I tried searching for old post but could not get much info with the whether the fuel system was completely changed. Most had a completely new fuel system.

[Peter Seow]

Originally Posted by Steve@Rennsport

Large displacement CIS engines (3.5 litres) can make 240-250BHP.

One should understand that such engines are NOT cheap to build as they require bigger pistons and cylinders, longer stroke cranks, machine work and twin-ignition to work properly.

With a realistic budget, it can be done successfully.

What would be the best BHP gain on a bang for buck basis starting with a high compression 204 bhp euro engine.

[Peter Seow]

Thanks Joe i just read the link, yes that 235 bhp rebuilt is exactly what i am going for.