Grahams81-Leon 4wd, Big Turbo - Back in the saddle :-)

Willie

LCR Track car
Aug 6, 2004
8,939
1
Sunny Scotland
Bad news Graham.
If it was me and I'd gone this far I'd continue with this manifold and have it completed at some point.
You will have wasted a lot of time, effort and money if you don't finish it.
Thus will allow you to have a back up and Allie testing to see for sure what the differences are.
 

seatcupramad23

kc4even23
Sep 7, 2009
3,239
3
birmingham
Indeed I would continue with current manifold and see how it runs if your then nOt happy start agAin with 1.25 it would make good research for future projects the comparison between the two
 
May 6, 2009
3,500
0
Northallerton, N yorks
You do right Graham, get it all done right first time round, you'll get there soon enough!

Should have left the other one in one bit though, painted it up and made a table or a bog roll holder out of it haha
 

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
You do right Graham, get it all done right first time round, you'll get there soon enough!

Should have left the other one in one bit though, painted it up and made a table or a bog roll holder out of it haha

:lol: coffee table like top gear one.....Hhmmm not sure the missus will got for that :blink:


any updates graham? :D

Nah mate no update really. I'm back from Ireland now and hopefully off till 9th Jan :p

So i should get plenty done in the next couple of weeks.
Unfortunately im loaded with cold... Hopefully it won't develop into manflu, the wife wouldn't let me in the garage today [:@] but she knowns best..... Apparentley its for my own good but :cry:
 

james.l

GT3071r LCR
Mar 18, 2008
2,802
4
My House
www.vagforum.co.uk
:lol: coffee table like top gear one.....Hhmmm not sure the missus will got for that :blink:




Nah mate no update really. I'm back from Ireland now and hopefully off till 9th Jan :p

So i should get plenty done in the next couple of weeks.
Unfortunately im loaded with cold... Hopefully it won't develop into manflu, the wife wouldn't let me in the garage today [:@] but she knowns best..... Apparentley its for my own good but :cry:

Wifes / girlfriends always know best :p
 

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
1.25" Manifold Build Underway..

Wifes / girlfriends always know best :p

What ever you do, don't say that when they are in ear-shot.....we'll never live it down :)

that turbo is the ****ing damage son!!!!!!

:funk:

Er.. Cheers :D

Righteeho, so im starting to feel a bit better now, been hitting the Lemsip's & Cold & Flu tablets pretty hard :D

So Yesterday i went into the garage and cleared away all the 1.5" stuff away and started getting on with the new 1.25" Collector.

I wanted to keep the collector much simpler than the first one i made, using no bends and just straight pipes.

So i used the smallest angle i could make with my chop saw, after seeing it i wasn't too impressed even if i cut the pipes off short it would still be a bit lame -

DSC01089.jpg


So this afternoon i started by pulling all the tack welds off the collector so i could start again and try and get a narrower angle on the collector.

So i modified the adjustable angle guide on the chop saw so i could get a nice narrow angle on there, i drilled some extra holes in the angle to get the angle i wanted-
DSC01090.jpg


Once happy with the angle i used a G-Clamp on the pipe to keep it secure to the angle -
DSC01091.jpg


So i positioned the pipe in line with the front of the angle (so i could repeat the dimension for the other 3 pipes)
I also set the position of the angle in relation to the cutting wheel so the starting point of the cut was roughly in the middle of the pipe.

Piccy of it cut -
DSC01092.jpg


So here's a pic of it dressed up, you get a hell of a burr of the chop saw, takes quite a bit of filing up to get shot of it -
DSC01095.jpg


So cut the other 3 bits and dressed them up. Then nipped two of them in the vice and tack welded them together -
DSC01096.jpg


Break For pics.............
 

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
Continued.....

So next up is working out the place to cut the end the new collector so the end size matches up with the hole size of the flange.
What i do is to measure the widest part of the hole in the flange then add on the dimensions of the wall thinkness of the pipe (in this case approx 6mm + Flange dimension) -
DSC01100.jpg


So i then tighten the screw on the verniers and pull them down the smallest end of the newly tacked up collector and mark the length where the verniers just touch.
That is then cut in the chop saw (i cut it at a slight angle, so the two pairs angle slightly away from each other)

Pic of it inline with the verniers, after it's been cut to length -
DSC01099.jpg


Quick shot of it inside the collector -
DSC01101.jpg


So just positioned on the flange to check fitment -
DSC01103.jpg


Before i tacked them up on the flange i cut them to length, i chopped the pipes down in line with each other, straight across - rather than at 90 degrees to each pipe. I did it like that to keep the manifold build neat.

Here's a pic of them tacked to the flange -

DSC01104.jpg


Really happy with the new collector, it's really nice and neat. The 1.25" pipe is a perfect fit for the T4 Flange, and the angle is nice and narrow so flow will be good.

DSC01106.jpg


Shot of the inside of the flange -

DSC01107.jpg


So the wife is back at work tomorrow so i will have plenty of time in the garage to play :)

I will update again tomorrow when i've got the rest of the manifold made.... wishfull thinking me thinks.

Cheers for any comments lads,

Graham.
 
Last edited:

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
sweet. very impressive work :D

Cheers :cheers:


Good work Graham.

Looks like you have mastered the collector, practicing on plastic piping is worthwhile too, get your angles right etc.

Cheers mate, no need for the plactic tho got plenty of practice in making the manifold in the wrong size :(

It's amazing how much easier it is working with the 1.25" pipes and bends. It seems loads smaller not just 1/4 of an inch. I will take some comparison pics tomorrow :)
 

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
Soz James been busy Christmas shopping and sitting around playing COD...

Been busy today though....

So started remaking the manifold again... here's a quick shot of the differences in pipe sizes between the 1.5" and 1.25" -

DSC01110.jpg


So here's some pictures during the build today, the angles are not 100% as i just wanted to get it tacked up and check clearances and lengths etc.
The length of the runners is spot on within 1/2" of each other - really happy about that :D

DSC01111.jpg

DSC01112.jpg


So started with the middle cylinders -

DSC01118.jpg

DSC01119.jpg

DSC01120.jpg


Before i went any further i fitted it to the engine, then bolted the turbo on to check for downpipe clearance -

DSC01114.jpg

DSC01116.jpg

DSC01117.jpg


Break for Piccy's
 

grahams81

Active Member
Oct 14, 2010
1,165
6
County Durham
Continued............

Then did cylinder 3 -

DSC01121.jpg

DSC01122.jpg


So hopefully tomorrow get the forth cylinder done and then start fine tuning it all and getting all the pipe ends nice and square.

Ta-tar..
 

joehirth

Rate me up baby
Apr 19, 2010
1,896
3
Woking, Surrey
www.facebook.com
Graham, I don't know if you'll regret not being able to remove the cam cover I would find it most annoying! I'm not sure if it's a lot more fuss to just extend it an inch or so towards the passengers side??

Are you a PS3 or Xbox man though?! ;) gotta love COD :D
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)