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#1
03-20-2002, 06:14 AM
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More power from D15B twin-carb ?
hi there, i own an Australian spec civic GL, with the twin carb motor. Its quite a powerful little car even in stock trim (i think so anyway) are there any worthwhile mods to get some more power out of it ???
thanx
__________________
too many freaks, not enough circuses 
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#2
03-20-2002, 06:38 AM
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Welcome in sigh. I had a GL twin-carb before I found the SiR.
What the GL needs is a decent cool-air box to start. You'll notice that your air pickup is inside the engine bay = hot air = decrease in power. This is the only model that I'd recommend a CAI for as there is no airbox and cool air intake. On top of that, a cam upgrade (Honda car club has the mugen spec grind I think and decent headers plus 2" exhaust setup can't hurt. The carbs can be modded to give better pickup - but I can't remember what was done to mine but I'll try and find out. I do know it was a simple tweak. The better route that I was starting with my GL is to drop the ZC 1600 twin-cam from our Si CRX in. You immediately get 30bhp extra power - probably more than the mods to the 1500. Get a CRX front cut and it will all bolt straight in - hardest part is the wiring but Hanny's at Smithfield and a few other places can do it. I'm based in Sydney if you need help. Cheers
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#4
03-21-2002, 02:51 AM
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IMO i would just swap in the 1.6L DOHC ZC into your car. You can get some mad power out of that motor down the road.
__________________
~**RRREEEOOORRR!!! I smell....sniff....sniff....SKANKS...why don't you girls just pack it up before I leave TREADMARKS on your faces**~   -1994 Acura Integra LS- *AEM CAI* *DC Sport Short Shifter* *Clear Bumper Lenses* * Hyper White Lights* *ITR Shift knob*
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#5
03-21-2002, 03:06 AM
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Quote:
I have nowhere near their handling or power although my stock handling is better than a stock 'teg VTiR. Compared to the last gen VTiR Civic hatch and coupe I'm quicker, I can hold my own against a lot of stock 8s and 6s - 160bhp with the SiR box and 1000 kilos = pretty damn quick. 0-100 is supposed to be 7 seconds - I only do 1 gearchange and I'd say that's pretty damn close as I hosed down a modified Starion turbo which was supposed to do 6s (BS  ). 1/4 is supposed to be 15.3, my guess is 15.5 as I carry power steering, aircon and a sunroof.The car is a lot of fun to throw around though - especially running it at it's 8000rpm redline G_Racer: I'd agree about the ZC as it can be done up to 200bhp, but it's a lot of effort and the D15 twin-carb is a lovely little engine that responds well to mods. 130bhp is achievable without having to go through the hassles of ECU etc.
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