Topic: x25 turbo project... (Read 7250 times)

ngrainqey · « **on:** 07 December 2008, 13:26:37 »

right then, the start of the turbo project

...
the parts list first(which i'll have to edit as i get pics and as i get the parts!

the turbo-T25 like off the LC

a recirculating dump valve-yes you do need a recirculating dump valve/wastegate when you're using an airflow sensor

a picture of a manifold the same as one i have coming (to chop up and make an adapter with for the omega manifold

)

ngrainqey · « **Reply #1 on:** 16 December 2008, 21:24:07 »

right then..an update on parts...

i have so far..
a garret T25-here's another picture i can upload pointlessly to drool over!

the x25 exhaust manifold (which will end up chopped up and have a gaping hole drilled into it

the downpipe-yes...its going to get lots of abuse

and here's the bit i actually want off the saab downpipe

kris9128 · « **Reply #2 on:** 16 December 2008, 22:35:28 »

sounds like a lot of hard work matey. good luck to ya tho

Mr Skrunts · « **Reply #3 on:** 16 December 2008, 22:53:05 »

Hows about this idea for a turbo conversion.

Mr Skrunts · « **Reply #4 on:** 17 December 2008, 00:11:42 »

Seems there are a few people trying out the turbo conversion at the rear.

Ian_D · « **Reply #5 on:** 17 December 2008, 09:42:19 »

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Seems there are a few people trying out the turbo conversion at the rear.

How well will a turbo work at the rear though?

Ive got 3 spare turbos kicking about at home!

Mr Skrunts · « **Reply #6 on:** 17 December 2008, 13:33:59 »

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Quote
Seems there are a few people trying out the turbo conversion at the rear.

How well will a turbo work at the rear though?

Ive got 3 spare turbos kicking about at home!

I wouldnt have a clue. From the bits I have read there is a gain in power but no where near the same as a manifold mounted system.

The one thing that was mentioned and talked about in detail was the ammount of heat , or rather less heat under the bonnet.

Would be interested in Marks DTM views and theory on rear mounted turbo conversions when he has time.

Ian_D · « **Reply #7 on:** 17 December 2008, 19:04:08 »

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Quote
Quote
Seems there are a few people trying out the turbo conversion at the rear.

How well will a turbo work at the rear though?

Ive got 3 spare turbos kicking about at home!

I wouldnt have a clue. From the bits I have read there is a gain in power but no where near the same as a manifold mounted system.

The one thing that was mentioned and talked about in detail was the ammount of heat , or rather less heat under the bonnet.

Would be interested in Marks DTM views and theory on rear mounted turbo conversions when he has time.

Yes, I would too.

I guess it will work, just not very well/efficiently . :-?

ngrainqey · « **Reply #8 on:** 17 December 2008, 21:45:10 »

i think the rear mounted turbo issues are more.... lots of lag! and less boost pressure (because of length of distance the compressed air has to travel but not sure about the second point!)

nick v6 · « **Reply #9 on:** 19 December 2008, 17:11:12 »

not knowing much about turbo's
but dont there need oil pumping round them to kep them cool
how do they go about thet wen the turbo is at the rear

i bet it sounds nice haveing a turbo right at the back

ngrainqey · « **Reply #10 on:** 19 December 2008, 17:16:57 »

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not knowing much about turbo's
but dont there need oil pumping round them to kep them cool
how do they go about thet wen the turbo is at the rear

i bet it sounds nice haveing a turbo right at the back

i doubt it sounds any different wether on the manifold or further down the exhaust pipe
and yes they need an oil feed but its more about the bearings than keeping it cool, some have water cooled cores(possibly all do but iv not seen everysingle turbo unit so cant say)

nick v6 · « **Reply #11 on:** 19 December 2008, 17:19:30 »

i wouldn't know where to start with fitting a turbo weather at the rear or on the manifold
be nice to give it a go

ngrainqey · « **Reply #12 on:** 19 December 2008, 17:40:36 »

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i wouldn't know where to start with fitting a turbo weather at the rear or on the manifold
be nice to give it a go

lol from what iv had to buy so far i think it's going to be rather horrible!
it'd be alot easier if you managed to get the saab 3.0 manifold with turbo as part of the manifold, makes it alot easier than what im doing

nick v6 · « **Reply #13 on:** 19 December 2008, 17:43:07 »

are you putting twin turbos on your v6
will it affect the pressure in the engine resulting in blowing the head gasket

ngrainqey · « **Reply #14 on:** 19 December 2008, 18:21:27 »

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are you putting twin turbos on your v6
will it affect the pressure in the engine resulting in blowing the head gasket

no just a single one to begin with.
aslong as you dont have too much boost pressure then the gaskets are fine

nick v6 · « **Reply #15 on:** 19 December 2008, 18:37:00 »

would love to see it when its all done
and be in the car and see how it drives

ngrainqey · « **Reply #16 on:** 19 December 2008, 19:23:39 »

lol... i bet you would

Ian_D · « **Reply #17 on:** 20 December 2008, 01:39:15 »

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Quote
are you putting twin turbos on your v6
will it affect the pressure in the engine resulting in blowing the head gasket

no just a single one to begin with.
aslong as you dont have too much boost pressure then the gaskets ~~are~~ Should be fine

ngrainqey · « **Reply #18 on:** 20 December 2008, 19:02:47 »

haha!
really ian it depends on the compression ratio... the v6's dont really get headgaskets going

Martin_1962 · « **Reply #19 on:** 20 December 2008, 19:50:46 »

I suppose in the right front wheel arch in front of the wheel is possible

ngrainqey · « **Reply #20 on:** 20 December 2008, 20:14:41 »

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I suppose in the right front wheel arch in front of the wheel is possible

lol, my decision is going to be... "drivers side or passenger?"

atm im thinking passenger so you dont get the coolant transfer pipe round just above the manifold as i found today it was a right barstuard to get the manifold off on a spare 2.5 i have

nick v6 · « **Reply #21 on:** 20 December 2008, 20:18:16 »

i hope it works great
it sounds like your not far off getting the turbo on the car

good luck

ngrainqey · « **Reply #22 on:** 20 December 2008, 20:28:33 »

well i need to go down armed with the saab manifold and turbo to see what angle to weld the flange onto the omega manifold

im thinking at the front where the cylinder 1/2 comes out and patch over the existing manifold downpipe flange by chopping it off and patching over a nice gapping hole lol!

then it's just a case of getting my tt intercooler through the post and sticking it where the second aux fan usually goes on the 3.0's and some hacking at another multiram that i have and some silicon piping later and it should be on (need to buy a manual boost controller and set it at 1 psi to start with lol)

and then i'll see how it goes

Martin_1962 · « **Reply #23 on:** 24 December 2008, 14:35:37 »

Passenger side has the horns.

ngrainqey · « **Reply #24 on:** 24 December 2008, 19:53:50 »

it doesnt have horns where the secondary aux fan is on the 3.0's

FYS · « **Reply #25 on:** 29 December 2008, 21:53:07 »

Hope this works for you buddy...

Regarding rear mounted turbo's - they can work quite well, but you have to keep the exhaust diameter small so you get as much pressure as possible (i.e. less lag), you also have to decat and de-silence the car (i think) so that the exhaust pressure remains high - the turbo acts as a silencer (kind of - sound awesome, I've heard!). You can run an electric oil pump and small oil cooler on a thermostat to keep the bearings in good shape. Clearly it is essential to have no air leaks on the return boost pipe, which when it is soooo long could be difficult.

The obvious gain is where you have limited space in the engine bay and also want to keep the 'bay temps down. I read a great article in PPC about a rear mount turbo on a 205 GTi which by all accounts work really well.... not huge "kick in the arse" power, more linear low pressure turbo effect - i.e. overall power gain but not the massive dump of power on boost as it were....

Anyway, don't ask any more, that is the complete limit of my knowledge! But, they do work and can be effective - its all in the design, spec and installation....

Frankly it sounds too much like hard work - I fancy a Saab 2.3 Turbo in FYS - an easy 300bhp+......

Cheers,

Martin.

ngrainqey · « **Reply #26 on:** 30 December 2008, 16:42:49 »

Quote

Hope this works for you buddy...

Regarding rear mounted turbo's - they can work quite well, but you have to keep the exhaust diameter small so you get as much pressure as possible (i.e. less lag), you also have to decat and de-silence the car (i think) so that the exhaust pressure remains high - the turbo acts as a silencer (kind of - sound awesome, I've heard!). You can run an electric oil pump and small oil cooler on a thermostat to keep the bearings in good shape. Clearly it is essential to have no air leaks on the return boost pipe, which when it is soooo long could be difficult.

The obvious gain is where you have limited space in the engine bay and also want to keep the 'bay temps down. I read a great article in PPC about a rear mount turbo on a 205 GTi which by all accounts work really well.... not huge "kick in the arse" power, more linear low pressure turbo effect - i.e. overall power gain but not the massive dump of power on boost as it were....

Anyway, don't ask any more, that is the complete limit of my knowledge! But, they do work and can be effective - its all in the design, spec and installation....

Frankly it sounds too much like hard work - I fancy a Saab 2.3 Turbo in FYS - an easy 300bhp+......

Cheers,

Martin.

lol yep, the 2.3 turbo carlsson (9000) has 225ish as standard.
need to get this problem of having something in the cylinder bore first though.

got an audi TT intercooler come today

Omegatoy · « **Reply #27 on:** 31 December 2008, 19:56:01 »

just found the pictures of my old Omega 3.0 courtney turbo !!!
do you want me to email them to you mate??
just to give you some ides of how its done???

Omegatoy

Ian_D · « **Reply #28 on:** 01 January 2009, 01:57:56 »

Quote

just found the pictures of my old Omega 3.0 courtney turbo !!!
do you want me to email them to you mate??
just to give you some ides of how its done???
Omegatoy

No mate, stick em in the gallery ASAP!!! I think we would all like to see them!

ngrainqey · « **Reply #29 on:** 01 January 2009, 12:51:02 »

Quote

just found the pictures of my old Omega 3.0 courtney turbo !!!
do you want me to email them to you mate??
just to give you some ides of how its done???
Omegatoy

yes please omega toy

but as ian says.. we'd all like to see them

thanks

Omegatoy · « **Reply #30 on:** 01 January 2009, 19:57:32 »

well i could do but they ar in a zipped file and i dont have a photobucket account etc so will have to be emailed to whoever wants them??? sorry guys if you pm me an email addy someone else may be able to post them up???
Omegatoy

ngrainqey · « **Reply #31 on:** 01 January 2009, 20:07:22 »

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well i could do but they ar in a zipped file and i dont have a photobucket account etc so will have to be emailed to whoever wants them??? sorry guys if you pm me an email addy someone else may be able to post them up???
Omegatoy

if you send them to dunno_989@hotmail.com then i can post them up omegatoy

Omegatoy · « **Reply #32 on:** 01 January 2009, 21:07:23 »

Quote

Quote
well i could do but they ar in a zipped file and i dont have a photobucket account etc so will have to be emailed to whoever wants them??? sorry guys if you pm me an email addy someone else may be able to post them up???
Omegatoy

if you send them to dunno_989@hotmail.com then i can post them up omegatoy

ok gonna do it in next ten mins, be warned tho my emails sometimes go into your junk folder cos of my email addy!!!!!

Omegatoy · « **Reply #33 on:** 01 January 2009, 21:15:03 »

ok sent !!! hope you get it ok!!!

ngrainqey · « **Reply #34 on:** 01 January 2009, 23:18:38 »

couldnt resist... my new toy

anyway courtesy of omega toy

we have some 3.0 turbo pics...

Omegatoy · « **Reply #35 on:** 02 January 2009, 21:43:06 »

think its only fair to warn you, the turbo places to much pressure n the bottom end of the v6 and runs the big ends!!!! this particular car did two engines, before we cottoned on to the fact that the 10.40 wasnt up to the job of protecting the engine in a turbo application, its now running sweetly and using 20/50 oil to protect it, so far its been ok in the last 31000 miles!! before that the engines were shot at around 22k,

ngrainqey · « **Reply #36 on:** 02 January 2009, 23:18:19 »

lol 20/50 oil! how much is that per 5L!

star_whites · « **Reply #37 on:** 02 January 2009, 23:22:08 »

Is the 51 plate yours then, when did you get that and where the hell are you storing all these motors are they in the back bedroom lol

Ian_D · « **Reply #38 on:** 03 January 2009, 01:25:28 »

Hmm... VGL... Very Good Lucking???

The 3L turbo looks intresting...

ngrainqey · « **Reply #39 on:** 03 January 2009, 13:56:48 »

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Is the 51 plate yours then, when did you get that and where the hell are you storing all these motors are they in the back bedroom lol

yeeees the 51 plate is mine

got it to unlock without the alarm going off every time now (was having to use the key before) but managed to bring a button back to life

ngrainqey · « **Reply #40 on:** 03 January 2009, 13:57:29 »

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Hmm... VGL... Very Good Lucking???

The 3L turbo looks intresting...

lol no ian, in my case vgl doesnt mean very good looking

Mr Skrunts · « **Reply #41 on:** 16 January 2009, 22:31:19 »

Any further on the project?

ngrainqey · « **Reply #42 on:** 16 January 2009, 22:43:15 »

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Any further on the project?

im just waitin for mutantcav to bring some 3.0heads tomorrow then i can crack on with my x25 lump to get the setup right

it's slowed to a halt pretty much with me getting the 3.0 mv6 tbh - i'll get there, just probably not as quickly as anticipated as i bought two facelifts in just this month lol!

ngrainqey · « **Reply #43 on:** 16 January 2009, 22:51:46 »

oh yeah skruntie, you should pop up and have a nosey at mi play garage (where i get to bang spanners against eachother like a caveman) - even has some proper oil spills on the floor

Mr Skrunts · « **Reply #44 on:** 17 January 2009, 00:00:27 »

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oh yeah skruntie, you should pop up and have a nosey at mi play garage (where i get to bang spanners against eachother like a caveman) - even has some proper oil spills on the floor

You'll have to PM the details and I might pop down.

ngrainqey · « **Reply #45 on:** 17 January 2009, 17:56:25 »

well next thing i need to do is get the 3.0 heads i got today bolted onto the x25

might do it tomorrow

also need to sort out the exhaust manifolds and especially the turbo manifold

i'v managed to kill my 3.0 lmao! it decided to eat it's self somehow..i found bits of metal in the plenum!

see my general help thread for info

-MAV- · « **Reply #46 on:** 20 January 2009, 10:11:20 »

Never seen detailed pictures on Omega turbo projects, but recently i found that V6 engines are quite popular in FWD swaps here in Ukraine

found some info on turboed X25XE in Daewoo Lanos and X30XE in Ashra H. Both running relatively big garret ball-bearing turbos, and nice engine management

Also i heard about X25XE 4x4 turbo Kadett, built for drag racing, but i don't have much info on that one...
i'll try to translate major info and post it here if someone interested

ngrainqey · « **Reply #47 on:** 07 March 2009, 19:14:18 »

righto matey, this project has been majorly put on hold lol (as i'v not got an omega or x25 lump to turbo)

FYS · « **Reply #48 on:** 07 March 2009, 20:15:25 »

What happened there then?

M.

ngrainqey · « **Reply #49 on:** 07 March 2009, 20:22:58 »

basically i sold the 2.5 lump lol

Mr Skrunts · « **Reply #50 on:** 07 March 2009, 20:42:52 »

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What happened there then?

M.

He defected....

ngrainqey · « **Reply #51 on:** 07 March 2009, 20:52:06 »

...to the DARKSIDE

vauxmad · « **Reply #52 on:** 13 March 2009, 20:09:20 »

cool i wouldn't of put the turbo badge on thou more supprising for others

cem_devecioglu · « **Reply #53 on:** 18 March 2009, 14:20:38 »

Quote

Never seen detailed pictures on Omega turbo projects, but recently i found that V6 engines are quite popular in FWD swaps here in Ukraine
found some info on turboed X25XE in Daewoo Lanos and X30XE in Ashra H. Both running relatively big garret ball-bearing turbos, and nice engine management Also i heard about X25XE 4x4 turbo Kadett, built for drag racing, but i don't have much info on that one...
i'll try to translate major info and post it here if someone interested

will be very interesting..and you will see there are many members interested

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Author Topic: x25 turbo project... (Read 7250 times)

kris9128

Martin_1962

Martin_1962

cem_devecioglu