Unknown Performance London

Not many engines better then an Rs Cosworth YB
This ones freshly rebuilt and is very big spec for an NA engine. Great torque curve and still making respectable power on twin weber carbs.
It’s already been fitted to the Mk1 es**rt as you will have seen in the last Youtube vid 🙌🏻

Go checkout my latest instagram post and drop a like/comment!

https://www.instagram.com/p/B7rG0RNB4_K/?igshid=1g3kw3h68vlqa

Throwback to one of the first 600+hp Astra Gsi’s in the country, totally built by myself. So much work went into this from being the first standalone z20 ever to run drive-by-wire, to the first custom twinscroll big runner robot welded manifold, alot of the parts still live on, its a shame i wasn’t doing youtube at the time so i could of showed all the effort involved! 2.6bar of boosts💨 #unknownperformance . . . #customeverything #youtube #opel #astra #astragsi #z20let #vauxhall #racecar