greenmac80 Posted January 3, 2008 Report Posted January 3, 2008 Hey all. I just got a new exhaust put through my car... extractors to two inch straight through... way too loud and the only power difference is that it can pull up hills a bit easier. a small problemo... used to be able to floor it out of a corner and most likely get sideways.... now the motor kind of dies... no power.... so does the exhaust really take away that much bottom end power? or could it be something to do with my carby? which is stock. only seems to happen when turning right :yes: Quote
OniBerserker Posted January 4, 2008 Report Posted January 4, 2008 should have gone for a 1.75' into 2' k engines need back pressure to make power, but you would know that if you read the 5 exhaust related posts in the ke section Quote
greenmac80 Posted January 4, 2008 Author Report Posted January 4, 2008 should have gone for a 1.75' into 2'k engines need back pressure to make power, but you would know that if you read the 5 exhaust related posts in the ke section Yes i already know that you need back pressure. I went to profix and asked them to do it. they asked me the car model size of motor etc. and they said 2 inch so i went with what the 'professionals' suggested Quote
Clapped out Posted January 4, 2008 Report Posted January 4, 2008 extractors to two inch straight through... Here is your problem, no muffler? Quote
towe001 Posted January 4, 2008 Report Posted January 4, 2008 extractors to two inch straight through...way too loud and the only power difference is that it can pull up hills a bit easier. WHAT can't hear you over the motor yeah yeah muffler you need a muffler and a resonator thingy as well But really a 2" shouldn't be that bad. Might even be an idea to give the motor a tune up Quote
Medicine_Man Posted January 4, 2008 Report Posted January 4, 2008 My KE70 has a 2" exhaust pretty much straight through apart from where it goes over the diff into a muffler (No resinator).. Quote
Raven Posted January 4, 2008 Report Posted January 4, 2008 Your 4K is worked with twin carbs and a cam though juzzy :yes: Quote
Medicine_Man Posted January 4, 2008 Report Posted January 4, 2008 I had the same exhaust before I fitted the twincarbs/cam etc.. Quote
Raven Posted January 4, 2008 Report Posted January 4, 2008 Oh? Hmm, weird then eh. Me thinks topic starter needs more back pressure then if its dying around corners, though that seems to me to be a fuelling issue. Give it a re-tune and adjust the fuel mixtures again. Quote
greenmac80 Posted January 4, 2008 Author Report Posted January 4, 2008 Hmm i was thinking the same thing... fuel or carby needs a tune up but i wasn't sure because i didn't have any problem before i got the exhaust done. it has one muffler but no resonator... If it is fuel problems what could be the cause and/or problem? thanks to all the wrote. Cheers, Luc Quote
TRD ke70 Posted January 5, 2008 Report Posted January 5, 2008 I've had this problem before, check the float level, if it's not set right the engine will die in a corner due to fuel surge. i have even seen guys make little baffle plates to go inside the fuel bowel to stop this happening. did the exhaust guys fit the extractors?, they may have knocked something on the carby. Quote
greenmac80 Posted January 5, 2008 Author Report Posted January 5, 2008 I've had this problem before, check the float level, if it's not set right the engine will die in a corner due to fuel surge.i have even seen guys make little baffle plates to go inside the fuel bowel to stop this happening. did the exhaust guys fit the extractors?, they may have knocked something on the carby. Yeah they fitted ther extractors so maybe they did f somethin up. I really don't know enough about carbies but would love to learn. so how do you check and change the float level? Quote
sammo[RL] Posted January 5, 2008 Report Posted January 5, 2008 I got a 2inch system put on my standard 3k, kept the stock manifold, got a big resinator, and a turbo rear muffler, and i reackon its got more power. Don't go straight thru! Quote
greenmac80 Posted January 5, 2008 Author Report Posted January 5, 2008 I got a 2inch system put on my standard 3k, kept the stock manifold, got a big resinator, and a turbo rear muffler, and i reackon its got more power. Don't go straight thru! Well i'm pretty fed up with the sound of the exhaust... too loud for me and a real attention grabber. You know.... race car sound.... slow moving car. :P so yeah plan to take back to exhaust joint and get them to either put another muffler in or a resonator. whichever they suggest Quote
snot35 Posted January 7, 2008 Report Posted January 7, 2008 (edited) Well i'm pretty fed up with the sound of the exhaust...too loud for me and a real attention grabber. You know.... race car sound.... slow moving car. :P so yeah plan to take back to exhaust joint and get them to either put another muffler in or a resonator. whichever they suggest Definitely quieten it down, then see if you can get it jetted. Changing exhaust affects mixtures. Edited January 7, 2008 by snot35 Quote
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