Looking at the starter more aswell that i have here. I can fix it fairly easy with help of metal putty to help level the flange out for a shorter bolt to be used. I cant see why they casings were made like they are. Can anybody explain why they made it that way, or just bad deign ?
First C3 Vette and luvin it :)
- Thread starter Waynio
- Start date
johng
CCCUK Member
Couple of things Wayne, have you got a photo of the header when fitted to the car? it could be that it's been dented to provide clearance, perhaps to the steering box? Wouldn't be good to remove the dent and then find you had to re-create it!
Also, I've rebuilt my Quadrajet and am currently fiddling about getting the mixture right (I've got a wideband O2 sensor fitted so I can actually measure what the AFR is). I've actually found the carb to be pretty easy to work on. If you haven't already done so, send an email to Lars Grimsrud at v8fastcars@msn.com and ask him for a copy of his timing and Q-jet tuning papers, they are both really good. Lars is the acknowledged guru on carbs on the US forum.
Chuffer
CCCUK Member
More like made by Stevie Wonder on a bad day !!!!!
Roscobbc
Moderator
It looks bad (it is bad!). One completely 'dead' cylinder would mean a a 12.5% power reduction.
One 'squished' header tube will potentially reduce the power to that individual 'pot' by say 15/20% at worse.........but factor-in 7 good cylinders and the engine is probably only down power-wise by a single percentage figure.......likely to be unnoticable by most people?
One 'squished' header tube will potentially reduce the power to that individual 'pot' by say 15/20% at worse.........but factor-in 7 good cylinders and the engine is probably only down power-wise by a single percentage figure.......likely to be unnoticable by most people?
Well got a reply from previous owner about the header dent, and it has always been like that since he imported it twelve years ago..
It is there to clear the steering box.
If it is so bad then ill maybe look for a new set while i am on Summit for parts. . If its been like this for so long then maybe barley a noticeable thing.
It is there to clear the steering box.
If it is so bad then ill maybe look for a new set while i am on Summit for parts. . If its been like this for so long then maybe barley a noticeable thing.
teamzr1
Supporting vendor
Performance is one part but also is that primary for cylinder 1 is reducing the exhaust pulses which limits extracting all exhaust on exhaust stroke
so next firing for that cylinder will have a hotter and dirty charge to cylinder
Comparing old header to another brand at Summit racing, notice how cyl 1 primary is slanted more rearward to have more clearance for steering gear
For some reason for old header someone hacking on cyl 1 as the shape to the flange looks different then the others ?
Also the question needs to asked , is the remainder of the exhaust system a free flow design mated to free flow tail mufflers ? If it`s not it defeats the whole object of having headers instead of manifolds .
It has these inside.
I have the gauges still which i have removed but the Innovate LC-1 Digital Air/Fuel Lamba is still fitted. I read up on it and it blew ,my head. I hate tech and using a lap top to tune it scares me lol. Ill see how that goes and poss fit the gauges again, i just didnt like them stuck on the dash.
johng
CCCUK Member
Afraid I'm not familiar with the Innovate LC-1, do you have to use a laptop with it? My sensor plugs into a gauge so I can read the AFR whilst driving along, it can also output to a laptop but I've not bothered with that. Your gauges look a bit more professional than my one, but then I'm not going to leave it there once I'm happy that my mixture is good and it's stable.
Yes it works with a laptop. if i can get a good A pillar pod for them that mite work for me. I havnt looked yet as thats the last thing i need to do.