mikuni Posted February 28, 2007 Share Posted February 28, 2007 Bike carbs on a later model, twincam engine such as a 4age or 3sge etc. What do you guys think? I'm in love and have seen a few different ideas, mainly using R1 carbs as they are compact, but still offer 41mm throttle size. Plus they sit on about a 45 degree angle, making them alot easier to fit into the engine bay. Post pics of car engines running them if you can find any. I did have a video of a nice sounding b16a running on some but I'm at work so I don't wanna search for it. Quote Link to comment Share on other sites More sharing options...
Snoozin Posted March 1, 2007 Share Posted March 1, 2007 Zetec manifold - Yam R1 carbs Mini head, R1 carbs Aston Martin inlet manifold with bike carbs Rover V8 I love the idea of bike carbs, tuning them is relatively simple as well, and throttle response is fantastic! Jets and the like can be a little more of a hassle though, and expensive as I have read. Quote Link to comment Share on other sites More sharing options...
Guest Speedstar Posted March 1, 2007 Share Posted March 1, 2007 How much are R1 carbs though?? must be pricey, what about something off an old CB four? Quote Link to comment Share on other sites More sharing options...
Burntrubber Posted March 1, 2007 Share Posted March 1, 2007 Mate bought some for his 13b PP but he flagged it and went with an IDA because he got told they would'nt be any good for the rotor. I remember him saying $1200 that might be each I dunno. Quote Link to comment Share on other sites More sharing options...
Snoozin Posted March 1, 2007 Share Posted March 1, 2007 Quite cheap, theres a couple of complete setups of R1 carbs on eBay at the moment, $100 USD plus shipping. That's bloody reasonable. Quote Link to comment Share on other sites More sharing options...
thminiman Posted March 1, 2007 Share Posted March 1, 2007 remembering that no matter what car you put it on, you'll need a custom inlet manifold Quote Link to comment Share on other sites More sharing options...
Raizer Posted March 1, 2007 Share Posted March 1, 2007 R6 (?) carbs. Manifold = easy to make. Quote Link to comment Share on other sites More sharing options...
peteretep Posted March 1, 2007 Share Posted March 1, 2007 look on turbosport.co.uk theres a few guys on there who have done it Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted March 1, 2007 Share Posted March 1, 2007 pug cunts love them to bits. in real terms though, what's the point over 20v throttles, running injection, or sidies? Quote Link to comment Share on other sites More sharing options...
CUL8R Posted March 1, 2007 Share Posted March 1, 2007 Cause then he doesnt have to fork out $$ for a Computer (injection anyway) , Cheap easy , and make good power.. Cheers,Chris Quote Link to comment Share on other sites More sharing options...
mikuni Posted March 1, 2007 Author Share Posted March 1, 2007 Yeah I've heard that 20v ones are only 38mm anyway and from what I have seen they are more expensive. I saw a set of these on trademe recently for $350. Plus theres the fact its 4 carbs. Thats gotta be cooler than injection, even if it is nice throttle bodies. Also, you don't have to muck around with return fuel lines and high pressure pumps because these run at 4psi fuel pressure. Richie, that rover v8 is awesome. Some people are pretty creative. I imagine it would be abit of a bastard to get 8 of the little buggers running right. Quote Link to comment Share on other sites More sharing options...
CUL8R Posted March 1, 2007 Share Posted March 1, 2007 Also that Inlet manifold shouldnt be too hard to make, one of them isnt even bolted together by the look of it, just using hose flexi-joints... Either way wouldnt take too long for a engineer to fabricate one up, could possibly use the original inlet abeit minus the plenium chamber..... Cheers,Chris Quote Link to comment Share on other sites More sharing options...
thminiman Posted March 1, 2007 Share Posted March 1, 2007 tuning = $ Quote Link to comment Share on other sites More sharing options...
CUL8R Posted March 1, 2007 Share Posted March 1, 2007 Still , wouldnt have thought tuning it would be anywhere near the cost of a Link Computer... + you still have to get one of those setups tuned... Cheers,Chris Quote Link to comment Share on other sites More sharing options...
mikuni Posted March 1, 2007 Author Share Posted March 1, 2007 tuning = $ Rejetting = $8 a jet. Need 4. Sometimes need to rejet to or 3 times for a new engine, but it shouldn't break the bank. Tuning may be difficult, but with one of those vacum guages its quite straight forward apparantly. Just make them all run equal at idle and your close enough. Dude I talked to made a manifold up for some and it was $150. All it is is a cnc cut plate with 4 pipes welded on at the right angle. I think the most expensive part would be the 4 silicone hoses if that shits still as expensive as it was 5 years ago/probably not. Quote Link to comment Share on other sites More sharing options...
thminiman Posted March 1, 2007 Share Posted March 1, 2007 meh, im just picking at it for some reason... ust highlighting that its not as simple as bolt on as those pics make it look i geuss manifold would be fucken easy tomake by the looks of it, just saying that there arent that many people on here that would make one themselves, hence keeping cost's down Quote Link to comment Share on other sites More sharing options...
eke_zetec_RWD Posted March 1, 2007 Share Posted March 1, 2007 hmm 41's wouldnt want them on anything more than a 1600 if you want the potential of the engine. my 4age boddies on my zetec are 43 or 44mm at butterfly if i remember rite and thats a lil on the small size for it. Quote Link to comment Share on other sites More sharing options...
Snoozin Posted March 1, 2007 Share Posted March 1, 2007 meh, im just picking at it for some reason...ust highlighting that its not as simple as bolt on as those pics make it look i geuss manifold would be fucken easy tomake by the looks of it, just saying that there arent that many people on here that would make one themselves, hence keeping cost's down It doesn't even cost much to get a manifold made, I was quoted $180 + gst to get a custom one to suit IDF's on a 4K. Not that I'm going that way anyway, but that's cost effective as hell. Quote Link to comment Share on other sites More sharing options...
CaMpylobacter Posted March 1, 2007 Share Posted March 1, 2007 ^ fuck yeah that'd be cheaps as. might actually look intoit for teh pug. hmmmmmmm Quote Link to comment Share on other sites More sharing options...
mikuni Posted March 1, 2007 Author Share Posted March 1, 2007 hmm 41's wouldnt want them on anything more than a 1600 if you want the potential of the engine. my 4age boddies on my zetec are 43 or 44mm at butterfly if i remember rite and thats a lil on the small size for it. Your right in that they aren't huge. But I dissagree that they are too small. I think the size of the throttle body itself isn't as important as one might think. These 41mm throttles are good for 180+ hp and are frequently used on 2.0L engines. If you calculate out the surface area of 4x41mm you'll find it is more than any NA engine running a single throttle, so surely it can't be too restrictive? Quote Link to comment Share on other sites More sharing options...
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