4722 replies to this topic

[techieboy]

it's a wonder that you survived all that petrol running about !

Most dangerous bit was when the wife came home and saw the state of the drive (tarmac + petrol = ) and the now black petrol run off, on the front lawn. Think NickB777 will vouch for that, as he sensibly beat a hasty retreat.

[NickB787]

it's a wonder that you survived all that petrol running about !

Most dangerous bit was when the wife came home and saw the state of the drive (tarmac + petrol = ) and the now black petrol run off, on the front lawn. Think NickB777 will vouch for that, as he sensibly beat a hasty retreat.

You can say that again, woooooooooooooooosh off I went

[Duncan VXR]

LOL - nothing better than your mates running off as you get your ears beaten Nev if going in from the top 2hrs should be more than enough DG

[Nev]

Lots of turbo + manifold pics added (with a view to designing the new exhaust manifold).... HERE

[Nev]

Todays progress with kind and very helpful Alex (Vespa) who traveled all the way from Surrey to Bristol to help me out:

1/ New uprated fuel pump inserted.
2/ New uprated rear hub carrier bolts inserted.
3/ New fuel filter.

Details if you are interested: HERE

Next stop = BIG turbo + home made exhaust manifold (hopefully)...

Edited by Nev, 15 November 2010 - 06:28 PM.

[Nev]

The all important turbo has now been ordered, I plumped for the brand new (not yet released) Garrett GTX 3071R. Estimated power output is 450 to 525 BHP in my setup if all goes well. This turbo is has a redsigned CHRA over the normal GT3071R and is blows approx 12% more air.

More details here.

Edited by Nev, 25 November 2010 - 10:00 PM.

[KurtVerbose]

Hmm, interesting. These twin scroll turbo's that diesels use, and are starting to be used in petrols, do you know if anyone has tried fitting them aftermarket? I guess writing a map for that would be interesting, adding another variable.

[VXT Tim]

Hmm, interesting.

These twin scroll turbo's that diesels use, and are starting to be used in petrols, do you know if anyone has tried fitting them aftermarket?

I guess writing a map for that would be interesting, adding another variable.

Vague recollection of Steve/sizetenboots starting a thread on here about them.

Can't remember the outcome if any, packaging a potential problem I would assume!?!?

[KurtVerbose]

Vague recollection of Steve/sizetenboots starting a thread on here about them.

Can't remember the outcome if any, packaging a potential problem I would assume!?!?

This?

Yes, they're huge.

[VXT Tim]

This?

Yes, they're huge.

That's the one

[siztenboots]

Hmm, interesting.

These twin scroll turbo's that diesels use, and are starting to be used in petrols, do you know if anyone has tried fitting them aftermarket?

I guess writing a map for that would be interesting, adding another variable.

Vague recollection of Steve/sizetenboots starting a thread on here about them.

Can't remember the outcome if any, packaging a potential problem I would assume!?!?

any map for a garrett would just need adjusting for fuelling, otherwise they (the holset HY35/HX35/HX40) beat the garrett in every way, better spool, better efficiency, better airflow, better build quality, better price.

you could buy a z20let cast manifold with a T3 flange, and do your own thing. Personally I am calling an end to further z20let development and going over to Saab B204 although the B234 gives easier torque for less engine stress.

[Vespa]

Hmm, interesting.

These twin scroll turbo's that diesels use, and are starting to be used in petrols, do you know if anyone has tried fitting them aftermarket?

I guess writing a map for that would be interesting, adding another variable.

Vague recollection of Steve/sizetenboots starting a thread on here about them.

Can't remember the outcome if any, packaging a potential problem I would assume!?!?

any map for a garrett would just need adjusting for fuelling, otherwise they (the holset HY35/HX35/HX40) beat the garrett in every way, better spool, better efficiency, better airflow, better build quality, better price.

you could buy a z20let cast manifold with a T3 flange, and do your own thing. Personally I am calling an end to further z20let development and going over to Saab B204 although the B234 gives easier torque for less engine stress.

not wanting to hijack this thread or anything, but ive heard the saab engine mentioned quite a lot when it comes to big power but know nothing about it. is it similar in design to the z20let? what car does it come from? is it a realistic alternative if you wanted to go for big power like nev is doing? what is the development potential, costs involved etc??

theres probably a fair bit about it already on here, but i struggle like furk when it comes to searching for anything

thanks!!

[Winstar]

not wanting to hijack this thread or anything, but ive heard the saab engine mentioned quite a lot when it comes to big power but know nothing about it. is it similar in design to the z20let? what car does it come from? is it a realistic alternative if you wanted to go for big power like nev is doing? what is the development potential, costs involved etc??

theres probably a fair bit about it already on here, but i struggle like furk when it comes to searching for anything

thanks!!

Comes from the old saab 9000

as per all old swedish stuff massivly over engineer bottom end is good for 500+bhp and there is open source software to map the ECU. It has a GM gearbox bolt pattern so will bolt stright onto the vx.

As for costs v cheap a guy ran a 500bhp saab 9000 in last years PPC £999 challenge with an old holset truck turbo. This is next years project clicky (600bhp target) with a Holset VNT with knackered actuator he picked up for £120.

[siztenboots]

B204L 9000 900 next gen, 1994 onwards, plus the 9-3 upto 2000 B204R in 1999 9-3 i think the B234 with its longer stroke 90mm will be too tall

[Vespa]

not wanting to hijack this thread or anything, but ive heard the saab engine mentioned quite a lot when it comes to big power but know nothing about it. is it similar in design to the z20let? what car does it come from? is it a realistic alternative if you wanted to go for big power like nev is doing? what is the development potential, costs involved etc??

theres probably a fair bit about it already on here, but i struggle like furk when it comes to searching for anything

thanks!!

Comes from the old saab 9000

as per all old swedish stuff massivly over engineer bottom end is good for 500+bhp and there is open source software to map the ECU. It has a GM gearbox bolt pattern so will bolt stright onto the vx.

As for costs v cheap a guy ran a 500bhp saab 9000 in last years PPC £999 challenge with an old holset truck turbo. This is next years project clicky (600bhp target) with a Holset VNT with knackered actuator he picked up for £120.

it sounds like the perfect doner, so whats the catch? im assuming there must be a catch or wouldnt more people already have gone down that route? is it just a straight swap??

[Nev]

I didn't know anything about the Saab engine option when I started

[Duncan VXR]

Looking forward to seeing the results sir - was chatting to Steve round mine early sat morning and sounds like your not far off having it all back and reaqdy to go DG

[jbudgie]

The latest 'Total Vauxhall' magazine has an article on a Saab engined VX.

[Nev]

Ah, i expect thats by Chip, he's putting one in his Nova after he blew his Z20LET block up with a GT3582R !

[techieboy]

No. It's a Johansson (bonker's Swede who does 800bhp Saabs) built/tuned B207R engine in a Swedish Speedster.