is it possible on a budget with cams, webber 45s carbs, ported polished head, 4 branch manifold and free flow exaust system...can it take higher compresstion???? I'm after a n/a engine that diliverys seriouse power. the 9a block is ready for rebuild wot should i do??? Cheers Vduber
nick wilsons old mk1 was 210bhp on carbs if I remember correctly?your best of going throttle bodies for best results
i've never had anything to do with throttle bodies. i say webbers because i've been fitting them to stock cars and the like for a while know. is there a massive improvement in hp from webbers to tb. i'm guessing its alot more acurate because its under pressure. K-jet wont supply enough air and fuel for 220 bhp will it??
eh? You'll be able to get more out of ITBs because you can map an injection system far more accurately and flexibly than you can carbs. The same benefit will apply to the ignition if your management will cover that as well.
i've heard people talk of fitting gsxr itbs. you can mount tehm to a weber manifold in some applications, e.g. itbs on weber manifold not sure if this would be the same on a vw fitment weber manifold though but worth a thought.
i can pick u a good set off webbers 45s for 200 the rest can be spent on head and cams. if i got tbs it is very expensive and money i could use else where on the engine.
im pretty sure"correct if wrong" that a full t/body kit will set u back around 2k new! dont see many second hand setups for sale i bought my set of 45's new for 1k. edit:cant spell. Edited by: riley
It can be done cheap, gixxer bodies are a popular choice, I think some have used CBRs as well. Have a look here for lots of good info, here for a similar setup on a 16v, and in fact this entire forum
Hiya i'd buy a set of matching ones and then rebuild them both. match them to the manifold and then match the manifold to the flowed head. for 2k of throttle body i dont think you get alot more power over webbers??? Vduber
Not a lot more power, but a better curve. Injection gives you far closer control over the mixture than carbs do.
bang on tsc depends how far you wanna go vduber i suppose? are you after the last inch of performance fun,or just nippy and fun...? stick with the old skool
well my full conversion from a 1.1 cost me 800 including new facet fuel pump and new filters for the carbs alot cheaper than tb's and makes same power as mk1.
i'm not after the last inch of performance but at least 200 bhp will be nice. i can spend alot more money on the head and cam if i go for webbers. throttele body looks sweet but are to expensive at tho mo...i wont be able to do anything else to the engine. Any more idea on getting the lump upto these kinda figures without forced induction??? Vduber
On a budget, I'd use the Webers. Spend the rest of your cash on a Grant Motorsport race head, skimmed for higher compression and with a pair of race cams. You may have issues with needing to go to solid lifters and strengthened bottom end as a result of the high rev limit dictated by the cams. That should see you to 220bhp but why are you just after a peak power figure? In practice cars with 180bhp and a better power/torque spread may actually be quicker a lot of the time as they won't have to rev to 5000rpm before they even get going.
180bhp would be good with a real lot of torque all the way through...a normal 9a on k-jet can give 160-165 bhp can't they. the webbers will be able to bump it up to 175ish i would of thought..... and thats with no cam or head mods????? Vduber
well i run a standard 1.8 kr,with 45's,4 branch hooked upto magnex. which gave 175 brake @ fly and 140 brake @ wheels,when i had it set up.
