Would you believe it; Taking out the cats and several nasty big silencers has lead me to new world of det. Really surprised me that it's made that much difference actually.
Would you believe it; Taking out the cats and several nasty big silencers has lead me to new world of det. Really surprised me that it's made that much difference actually.
bit of a timing tweak needed ?
my Virtualisation Blog http://jfvi.co.uk Virtualisation Podcast http://vsoup.net
Strange, never known that before. Sometimes the timing does need a little tweak to get the best from the decat, but never known a car to det! Must of been some crappy exhuast!
could be egr not working any more, as that has an effect on advance and so on (if that was there)
or possably the lack of back-pressure means more exhaust gas is escaping, so more air is getting in (and with it more fuel). more fuel in the cylender = more likely to pink..
hughlunnon@yahoo.com | I have sigs turned off..
No EGR to fail
It's not just a straight decat job. It's kind of a bit of pipe that makes its way from the down pipe to the manifold. Yes, I am a cheapskate and have earplugs Fortunately, it's not of an era where all this calculated exhaust stuff really comes in. So long as the manifolds on OK.
For an old sod, it's quite a high compression engine as well, somewhere around 10.5:1 I think. Not a normal issue through, even the turbo conversions ran on stock compression OK.
Can't tweak the timing on it, it's probably just running a little lean on WOT at the top end, I'll give the pressure reg a twist
Am the only person who understood less than half of this?
[: O |=====|O :] Beyond Fashion Since 1948
Correct apart from the working partOriginally Posted by XTR
I got way less than half!
It's like it's a foreign language or something!
Allow me to translate guys.
Paragraph one: My car has no exhaust boxes. It's loud, I'm going to go deaf. My car will run without any and I can't be arsed to get it done properly.
Paragraph 2: My old engine is running quite a high compression ratio. I'm suprised turbo conversions lasted more than 5 minutes without blowing up because of this.
Paragraph 3: The timing can't be changed. The air/fuel mixture is probably running too lean when I'm giving it beans at high RPMs. I'll increase the fuel pressure a bit and hope it's enough to stop the engine going bang.
Home cinema: Toshiba 42XV555DB Full HD LCD | Onkyo TX-SR705 | NAD C352 | Monitor Audio Bronze B2 | Monitor Audio Bronze C | Monitor Audio Bronze BFX | Yamaha NSC120 | BK Monolith sub | Toshiba HD-EP35 HD-DVD | Samsung BD-P1400 BluRay Player | Pioneer DV-575 | Squeezebox3 | Virgin Media V+ Box
PC: Asus P5B | Core2duo 2.13GHz | 2GB DDR2 PC6400 | Inno3d iChill 7900GS | Auzentech X-Plosion 7.1 | 250GB | 500GB | NEC DVDRW | Dual AG Neovo 19"
HTPC: | Core2Duo E6420 2.13GHz | 2GB DDR2 | 250GBx2 | Radeon X1300 | Terratec Aureon 7.1 | Windows MCE 2005
Laptop: 1.5GHz Centrino | 512MB | 60GB | 15" Wide TFT | Wifi | DVDRW
nice translations
Ivan get it Megasquirted and you can tweak to your hearts content.
my Virtualisation Blog http://jfvi.co.uk Virtualisation Podcast http://vsoup.net
can I just point out that having more fuel helps reduce pinking. Make a mixture a tad richer and it won't pink as much, and it'll help reduce burned valves.
My old Sunbeam Ti (on twin 45's) with a wild cam ran an uber compression and one box exhaust, and it needed to be uber rich to stop it overheating and pinking, and had to have platinum electrode plugs to burn the fuel without clogging up.
Fastest damn engine ever.....one rally per engine retune
Originally Posted by Advice Trinity by Knoxville
yeah changing to a different grade of plugs may help ?
I love my BCP7RES
my Virtualisation Blog http://jfvi.co.uk Virtualisation Podcast http://vsoup.net
Lowe, i got most of that but what is 'tink tinkkk tiinnk tink'!?
There are currently 1 users browsing this thread. (0 members and 1 guests)