Advice on building a new engine.

[hoe]

  On 27/05/2023 at 5:00 PM, fox1972 said:

lol....would be a hell of a ride.....is it a modified Norton....?

Triumph rocket 3, 2.3l triple.

I doubt any Norton ever has made more than 50hp....

[Puffwagon]

They used to have numbers on the website, 1000hp for the H beams and 1200hp for the I beams. Rule of thumb is don't go more than 30% past that.

 

I would just do the bare minimum for 550 to 600rwkw if I had to keep the cost down. Going past 600rwkw will need different parts so that needs to be decided beforehand. You'll need to have a chat to your engine builder to see what fits in the budget as 10k is more than likely not enough.

[Tom Tucker]

$10k is 2/3 of a basic engine build these days hey

[k31th]

I hope not ^^ 😮

[Tom Tucker]

Have you considered something like this: 

https://golebysparts.au/products/atomic-performance-products-my2021-atomic-streetorquer-475-long-engine

[Puffwagon]

If you're going to spend 12k on building an engine you wouldn't use a cast piston.

[fox1972]

  On 28/05/2023 at 7:43 AM, Tom Tucker said:

Have you considered something like this: 

https://golebysparts.au/products/atomic-performance-products-my2021-atomic-streetorquer-475-long-engine

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that's nice, thx for the link mate, I didn't know golbeys had the atomic engines on their site.

 

  On 28/05/2023 at 2:08 AM, Puffwagon said:

They used to have numbers on the website, 1000hp for the H beams and 1200hp for the I beams. Rule of thumb is don't go more than 30% past that.

 

I would just do the bare minimum for 550 to 600rwkw if I had to keep the cost down. Going past 600rwkw will need different parts so that needs to be decided beforehand. You'll need to have a chat to your engine builder to see what fits in the budget as 10k is more than likely not enough.

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Id be more than happy to have around the 500ish mark.  I only want 350rwkt for the street, but the powercruise days I'd like 500 or so Rwkts were you can safley use that power.

[biddie_fiddler]

On the topic of exhausts. I have the ultrex 4" turbo back. I would steer clear of it, its all round not great for a daily.

It drones real bad, fits absolutely terribly. It is a huge pain in the arse to install. If I was to do it again, I'd go x-force because it sounds a bit better and drones less.

If I had the budget, I'd go 4" dump and custom 3.5" the rest of the way. 4" all the way seems a tad unnecessary lol

 

Example of dealing with ultrex sh*t fitment. It sits so damn low, you'll hit the v-band on everything.

[fox1972]

Mate, thank you so much for that info, and for being honest. I was actually going to buy this the other night.....but they were out of stock lol. I think I might just stick with the x-force 4inch dump,cat and the 3.5 inch rear as it's a well proven system. I certainly don't like exhausts that done either. Thx for that mate, I appreciate it.

[Puffwagon]

Yeah 4 inch is for all the power and they are noisy. Fitting multiple sections of exhaust that are v banded is a bit of a pita to get right but once installed should be fine. Even my own custom system gives me grief when I have to reinstall the whole lot, it has to be just right or a v band will leak. Pretty sure @JETURBO has fitted a few Venom twin 2.5 inch systems and wound them up to 500+rwkw. They have a 4 inch dump, 5 inch cat (that I've put over 700awkw through) and they have a very nice note to them, while being very sedate as far as noise goes compared to a 4 inch system. It might be something to consider.