Beyond that level supercharging a B-Series is rare as most people go turbo for big power, but there’s really no reason a supercharged B-Series can’t go 600bhp. Kraftwerks produce a kit using the popular Rotrex supercharger that’s proven to practically double the power of a 160bhp B18 at just 9psi, and up to around 350bhp with a few more mods. The other option is using a centrifugal supercharger, which doesn’t make as much low down torque as a positive displacement charger, but tends to make more power. The Integra Type-R lump making closer to 300bhp at the same boost. A standard B16A with this kit has been known to make 230bhp+ at just 11psi, pulling all the way to over 8,500rpm with no let up, and the bigger B-Series engines make even more. Though we say were, because it’s no longer in production. Starting with the positive displacement charger, Jackson Racing were the main suppliers of the B-Series supercharger kit. Enough to make you wonder why you’d want to stay naturally aspirated anyhow! There’s two basic types of supercharger, positive displacement and centrifugal, and both options are possible on a B-Series. Supercharging the B-Series is far from common, but kits exist, and the proven gains are very impressive. The 1.8ltr block is your instant capacity boost, and there are stroker kits and even the B20 block from Honda CRVs to allow you to go bigger, and we’ve seen stroked B-Series lumps breathing through four big throttle bodies making over 260bhp even on pump fuel with decent drivability, though these days these builds are getting rare, as most head for forced induction or a K-series engine swap. So unless you’re determined to spend many, many thousands just to see barely over 200bhp, the key to naturally aspirated power is increased capacity.
#HONDA PRELUDE ECU TUNING MODS#
In naturally aspirated form, while mild gains can be had from simple bolt-on mods and cam swaps, it’s a lot of work even getting the B16A 1.6ltr even up to standard B16B Civic Type-R power. While there are extreme naturally aspirated B-Series engines stroked to over 2.3ltr, revving to well over 10,000rpm and making 350bhp, these are serious money drag-only setups running on methanol. From a tuning point of view it’s fair to say all of these engines have huge potential, and as sub 2ltr engines they’re still hard to beat. It’s also available in 1.8ltr, where it’s mostly found in five-door versions of the Civic VTi, and in it’s most powerful form in the original Integra Type-R. The original VTEC motor that started the craze, the VTEC B-Series engines were originally found in 1.6ltr form in CRXs, Civic VTis, and of course in the original Civic Type-R, where it produced a pretty bonkers 185bhp while revving to 9,000rpm. Without VTEC you’d either have the mild cam profile with the nice low RPM drivability but wouldn’t make really big power, or you’d have the crazy cams which give good power but would drive like crap under around 5000rpm.
What VTEC actually does is give you a mild cam profile that drives nice at lower RPM, and then it switches to the crazy cam profile that gives you the big high RPM power. So why is this good? Well some people think VTEC is what creates power, but that’s not strictly true, the same wild cam profile without VTEC would create the same peak power number. It effectively gives you two different sets of cam profiles fitted to your car at once. It varies when and how far the valves open, and in fact it also adjusts how long they’re open too.
Variable valve timing and lift is pretty much exactly what it says.
VTEC is Honda’s name for a variable valve timing and lift system, and while quite a few other manufacturers, from Fiat to Porsche, all use similar systems, Honda’s version is by far the most famous, and arguably the best.
From then on the term VTEC and big revs have become the norm for sporty Hondas, and while tuning them took a while to seriously take off in the UK, these days the Honda VTEC lumps are some of the best 4cyl engines to upgrade. That’s when Honda re-wrote the rulebooks with the release of the B16A VTEC engine, pushing out around 160bhp from a high revving 1.6ltr non-turbo engine back when most other N/A 1.6s were struggling to top 110bhp. And here we’re going to show you how you can make your VTEC engine perform better and faster!ġ989 was a special year for the Fast Car world. When it comes to screaming high RPM performance engines, one name instantly spring to mind: VTEC.
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