169 replies to this topic

[Winstar]

No that would have meant a longer and more complicated charge route and a lot more bespoke parts.

I think what Fez was trying to say is that the pre-compression velocities are MUCH higher than post meaning that pre-compression piping (and especially bends) should be minimised, than again there are quite a few less than optimum airflow bits TBH

[Duncan VXR]

 

No that would have meant a longer and more complicated charge route and a lot more bespoke parts.

I think what Fez was trying to say is that the pre-compression velocities are MUCH higher than post meaning that pre-compression piping (and especially bends) should be minimised, than again there are quite a few less than optimum airflow bits TBH

 

 

Makes sense Rob,

 

Happy to take any feedback on board  you certainly know your stuff sir. Like all cars and most builds a lot of routing and sizes etc are restricted due to space and layout. I focused on removing pipe changes which I could control easier applying as smooth as possible

 

Im not sure how much scope there is in the vxt rear end to change the routing of pipes without touching anything and the tfsi boost outlet and intake are very close to how it normally runs (not saying that this is the best and again what VAG deemed best in their setup)

 

A closed airbox was an option for intake (ITG do that spec filter in their housings)

 

DG

[Crabash]

 

No that would have meant a longer and more complicated charge route and a lot more bespoke parts.

I think what Fez was trying to say is that the pre-compression velocities are MUCH higher than post meaning that pre-compression piping (and especially bends) should be minimised, than again there are quite a few less than optimum airflow bits TBH

 

 

I see what you mean, anything is possible I suppose but looking back to when we were looking at routing I remember DG and myself discussing inlet position. I don't think it would be such a tidy install, maybe if I was chasing every last bit of performance. But we had to fit other things in there too, just didn't seem worth the hassle, it's not like I'm short on power after all lol.

 

Could possibly have just 1x45 deg bend instead of 2x90 deg but the expansion tank would need relocating and we quite liked it being in the standard position. Would be interesting to see what difference it would make. I have spent enough for now though lol

[stupidyank]

What transmission was used on this build, and any Idea what torque it is rated to? This seems like an interesting project, which might be good for what I'm thinking of doing. Cheap easy to come by powerful motors without exotic bits necessary combined and hopefully with similar gearboxes.

[Duncan VXR]

Used 02M 6 speed box. There are plenty about and don't remember actual data off top of my head but friends 600bhp at hubs renault 5 has not broke it drag racing . Certainly seem to be no issues in the 400bhp / 400 torque vast array of high powered vag cars I know I tracked down a particular version as the ratios are perfect and touch taller than the more available ones. DG

[Crabash]

What transmission was used on this build, and any Idea what torque it is rated to? This seems like an interesting project, which might be good for what I'm thinking of doing. Cheap easy to come by powerful motors without exotic bits necessary combined and hopefully with similar gearboxes.

 

More or less why I went this route. I'll let DG fill you in on the exact spec of gearbox, but it will handle way more than I will ever want in a VX.

[stupidyank]

Awesome. This one will take some pondering but it feels like I'm finding the right path. Thanks for the info!

[Duncan VXR]

Awesome. This one will take some pondering but it feels like I'm finding the right path. Thanks for the info!

No problem, give us a shout needed DG

[Dazzx10r]

Duncan can you recall the gearbox code? is it a tdi 'box? I'm running the 1.8t 20v engine in my Elise with the 5 speed 'box. I'm looking at fitting a TDI box for the longer ratio's. Have a look here for the ratios vw[color=rgb(30,125,131);font-family:'helvetica neue', helvetica, arial, sans-serif;font-size:13px;font-weight:bold;]technic.com/Technic/[/color]VWGearboxRatios[color=rgb(30,125,131);font-family:'helvetica neue', helvetica, arial, sans-serif;font-size:13px;font-weight:bold;].xls [/color]

[Duncan VXR]

Derv would be horrible imo and not worth the trade off Feeling nice today after clear drive to sunny Manchester ERR ratio box is your friend FML is a lot more available and close to ERR but ratios are a touch lower. Depending on what you want to do with box selector you may want the later slide pin type. I changed them and modded for rose joints DG

[Duncan VXR]

I ran the 5 speed box on my 1.8 20vt powered renault 5 gt turbo and fitted a derv fd to get around the box been far to short. Some time back now but maybe the issue your having. Derv box was to tall from memory hence the mix match. Some have change 5th or 6th clock on the petrol boxes for a cruising gear DG

[Crabash]

As some people requested, some pics with clam back on.

 

 

 

[Graeme Lambert]

Squeezes in nicely doesn't it

[Crabash]

Squeezes in nicely doesn't it

 

It does, almost like it was meant to be there, just needs a water ingress cover to finish engine bay off I think.

[Rickwoo118]

That is tight. Not much room in there. Bet you can't wait until summer to drive it hard and see the real potential of the car?

Edited by Rickwoo118, 10 January 2014 - 05:34 PM.

[Dazzx10r]

I ran the 5 speed box on my 1.8 20vt powered renault 5 gt turbo and fitted a derv fd to get around the box been far to short. Some time back now but maybe the issue your having. Derv box was to tall from memory hence the mix match. Some have change 5th or 6th clock on the petrol boxes for a cruising gear DG

Cheers DG, I was thinking the 5sp tdi box would be ok on such a light car, bear in mind it's running 280bhp? I was thinking of the EBJ 'box, this would give a theoretical top speed of 172mph in 5th, 1st 2nd & 3rd gears are a little taller than mine now but 4th and 5th are quite a bit higher which in theory would give a more relaxed drive/cruising?

[Crabash]

That is tight. Not much room in there. Bet you can't wait until summer to drive it hard and see the real potential of the car?

 

Yeah but also to get all the finishing touches done and get it on the RR and final setup. Pissing me off ATM, so cold outside to get on with work and been ill it seems like the whole xmas holidays.

[Crabash]

Got rid of the pikey brake vac fix and did it properly yesterday, brakes feeling goooood now. The engine has an aux vac pump to eliminate the potential prob of coming off throttle and very quickly on the brakes before manifold vac builds on a turbo car. Another plus point. Took a little getting used to as they are sharper initially than standard VX brakes but after a short time you don't notice anything but the fact that they stop you very well.

Can't say I've been out in it a lot just odd short runs out, mainly for the local vxer's blagging rides but so far so good. Still quite astounded at the traction available with no LSD in damp and wet conditions at this time of year.

I am itching to turn up the power and try it out but I will be restrained, I will test it properly on a RR on all settings, I don't think it's very safe trying to make changes and log with laptop on passenger seat while unleashing the power, much better to do it in a controlled environment.

[Acidpopstar]

I think you have the right approach Steve despite how tempting it must be to turn up the power. Plenty of warm dry days to come. And I'll happily take another pax ride!

[OneYet]

The engine has an aux vac pump to eliminate the potential prob of coming off throttle and very quickly on the brakes before manifold vac builds on a turbo car.

 

I am very impressed with your work and I just love a black car with red interior.

 

But this vac pump thing. Could this help on a SC car as well?