kadett b man Posted February 19, 2012 Share Posted February 19, 2012 (edited) hi guys i don't have a manta, but do have a kadett b coupe and a kadett city sr. the city, i am planning on leaving totally standard, as there are only 3 rhd left on the road. the B, i am planning on uprating everything, i have recently acquired a getrag, and 2 manta 1800's. 1 inj, 1 carb. so i have joined here for tips on the engine departmant and possibly suspension too. 1st question. How much power can i get out of an 1800? cheers Elliot Edited February 19, 2012 by kadett b man Quote Link to comment Share on other sites More sharing options...
Rapierdave Posted February 19, 2012 Share Posted February 19, 2012 I'm loving that black Kadett, please bring it to Billing this year with the great Southwest convoy. Quote Link to comment Share on other sites More sharing options...
garymanc Posted February 19, 2012 Share Posted February 19, 2012 hi and welcome to the forum, i think the 1.8 is 90 bhp on the single carb or 110 bhp on injection reckon you would be better with a c20xe Quote Link to comment Share on other sites More sharing options...
opel2000 Posted February 19, 2012 Share Posted February 19, 2012 (edited) The Cav II SRi and the Astra GTE in 1.8 form had differences in their 1.8 SOHC engines, as I believe they had a higher CR and a different Camshaft. If yu have a Manta 1.8 with the Astra/Cav injection system bolted onto it I think you are gonna be looking at about 105BHP The Cav and Astra 1.8 GTE/SRi had 115 BHP as standard before adding free flow air filters gas flowed heads and performance exhausts etc. will go to say though I'm a big fan of the GM ohc 8 valve engine, lovely lightweight free revving engine, easy to install and responds well to cheap tuning techinques. Edited February 19, 2012 by opel2000 Quote Link to comment Share on other sites More sharing options...
kadett b man Posted February 20, 2012 Author Share Posted February 20, 2012 i do want to put a redtop in the kadett. my dad actually has a blydenstein dev' block with cossie pistons, and an allen steel crank, we have a coscast and will probably develop the engine to about 200+ bhp. My uncle has an 2 HS's, one standard, and in need of total resto, and one he bought as a shell, that he's going to redtop. My dad has sportshatch (snoopy, not cav) hs, viva estate x2. and had countless gte's. so to say we are a fan of gm is an understatement. (as i'm sure you guys understand) But they say my kad' b is too rare to cut up, ie transmission tunnel, frontanel etc. because there are less than 10 on the road. I however argue that if it wasn't for me, the kadett b would still be in the barn rotting, and wouldn't be loved like it will now. and am hoping to take the city to billing this year Cheers guys! Quote Link to comment Share on other sites More sharing options...
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