seat cordoba coupe tdi agr

Alex tdi · Dec 30, 2008

hi i am Alex from lithuania,
i have seat cordoba coupe with tdi agr engine, now it is modified and have 209 hp 380nm and it has stock internals. now mods: gt2359v from mercedes pp764 nozzles from t4, 12mm pump head, dbilas 260 cam, fmic, all 63.5mm exhaust, passat pd130 intake manifold, 3 bar map

Now i want to ask can i use t5 2.5tdi pd 128kw pistons (81mm) with asz rods (pd130) in bore to 2.0? piston fit o rod or no?

sorry for my bad english

Rub87 · Dec 30, 2008

No, because that engine has 4 valves per cilinder..

I think you'd better go for .260 nozzles PP764 are too small for that turbo..

Alex tdi · Dec 30, 2008

i know that nozzles is small but i want did better bottom end because i fink now it can broke...

in wikipedia i faund this:
2.5 R5 TDI PD 96-128kW
Configuration
water cooled in line five-cylinder 2,460 cc (150 cu in)
Cylinders
Bore × stroke 81 x 95.5 (0.85 ratio), 492 cc/cylinder
Head
single overhead cam, two valves per cylinder, 18.0:1 Compression ratio
Fuel system
Unit injector pump direct injection diesel
Aspiration
variable turbine geometry turbocharger with intercooler
Output
96 kW (131 PS, 129 bhp) in the Multivan
128 kW (174 PS, 172 bhp) @ 3500 rpm, 400 N·m (295 ft·lbf) @ 2000 rpm
Applications
Volkswagen Touareg, VW Multivan

Alex tdi · Dec 30, 2008

here are some photos of my car :
http://s391.photobucket.com/albums/oo357/alexassstdi/

Rub87 · Dec 30, 2008

As I said, the pistons do not fit because the engine they come from has 4 valves per cilinder and you have only 2..

Alex tdi · Dec 30, 2008

but i saw this engine and the pistons have 2 valves....
how about caddy 2.0 sdi pd i know that this one fit but how about piston isnt it poor?

Rub87 · Dec 30, 2008

Alex tdi said:
but i saw this engine and the pistons have 2 valves....
how about caddy 2.0 sdi pd i know that this one fit but how about piston isnt it poor?

then you saw another engine.. maybe the 2.5 from a T4.. the T5 one is an aluminium block, with 4 valves per cilinder and PD injection

I think you need pistons from a T4 or 2.0 PD 8 valve (BMM BGW, ..)

Alex tdi · Dec 30, 2008

Rub87 said:
then you saw another engine.. maybe the 2.5 from a T4.. the T5 one is an aluminium block, with 4 valves per cilinder and PD injection

I think you need pistons from a T4 or 2.0 PD 8 valve (BMM BGW, ..)

but t4 dont have a pd so it wont fit on asz rods?

that engine i looking have aluminium block and have 2 valves per cilinder, i looking in catalog and everywere is writen that engine has 2 valve per cilinder like the toureg r5 tdi 174hp engine, the same as in multivan... now i dont understand nothing

about 2.0 pd 8v i was asking but in shop they said that cant to deliver...
2.0 sdi pd is not same as tdi?

sorry for silly questions

Rub87 · Dec 30, 2008

If it has 2 valves you can use it..

I always tought the aluminum engine had the 4 valve head based on the 16v 2.0 PD..

Never seen such 2.0 sdi... probaly it will have a high CR to start with

Alex tdi · Dec 30, 2008

no I never seen the 2.5 5 cilinder with 4 valves per cilinder...
2.0 sdi pd is based on caddy mk3 about cr i dont know but my friend and chiptuner has this pistons on his tdi and said that pistons dont have diference now his car has 205hp 430nm with dss .250 nozzles and standart vnt20. now he fit vnt2059 hybrid turbo and I waiting for result...

r5 tdi pistons can fit on asz rods?

Alex tdi · Jan 2, 2009

i want too ask how much boost i can have with gt2359v? now i have 2.0 bar... and only 209hp 380nm with pp764 now i want to change nozzles to race 520 or dss ultime interesting how many power when i can have?

mojogoes · Jan 2, 2009

2bar should be ok or even 1.8bar but if you are not using R520 already you should see another 20 or 30hp gain.

Alex tdi · Jan 2, 2009

on dyno boost is about 1.8bar in 4-5k rpm... but on street i see and 2.0 bar...
but still if the r520 gain me 30 hp thats very good

in fact i plan bore to 2.0 and asz rods to have better bottom end

Rub87 · Jan 2, 2009

I needed only 1.7 bar for 192whp...

mojogoes · Jan 2, 2009

If he uses the r520's he should have over 200whp possibly up to 210whp with some other larger babies

Alex tdi · Jan 2, 2009

I have another question. a strange boost i have 0.5bar at 1700rpm and dont have more till 2300-2400 rpm then spooll up to 1.7 1.8 and my interesting why turbo dont spool faster? i have all the time from 1700rpm to 2300 0.5 bar...

majesty78 · Jan 2, 2009

Its a quite big turbo, but you !!could!! try to shorten the VNT actuator rod a little (start with half turn)....

Although it could depend on mapping.

BTW:

When people start up, posting boost, so it would be very helpfull to add the revs.
With a GT1749VB i can also make 2 bar, but surtainly not up to 4000rpm....

Greets, Alex

Alex tdi · Jan 3, 2009

the vnt rod is shortened to the end

i think maybe it could n75 valve fault? maybe it dont working good... I have 2 bar from 4-5k rpm but sometimes 1,8 bar... at 2,5k rpm have 1,7 bar... the engine can rev to 5,7rpm with 12mm pump head but it dont need to rev so lot, i reving to 4,8-5k....

Rub87 · Jan 3, 2009

maybe it's surging down low?

Alex tdi · Jan 3, 2009

i dont know but boost came to 0,5bar and no more... till 2300-2400rpm and then come down to 0,4bar and then spool to 1,7 bar at 2500-2700rpm range...

Rub87 · Jan 3, 2009

If it fluctuates like that for no reason it might be surge, have you measured emp? I can also be in the mapping offcourse..

Alex tdi · Jan 3, 2009

no. now i want to make emp gauge then i see that is emp... so it can be to big or too many? i dont understand

Rub87 · Jan 3, 2009

Both, you have too see it's not too much, but if it's too litlle (which I doubt) it could spool faste,r but if pressure fluctuates like you describe I'd think it could be surge, but it's strange, 0.5 bar at 1700 shoulnd't be something that can't be done.. even with a 59mm wheel..

Alex tdi · Jan 3, 2009

then i install turbo the boost didnt came before 3k rpm... then I adjust the actuator rod it spool faster but has this issue... that meens surge i dont know good?

majesty78 · Jan 3, 2009

If you have NO CHANGE when shortening VTG rod to maximum then there is a other issue in your system.

greets, alex

Rub87 · Jan 3, 2009

the only issue I can think of is surge or incorrest stopscrew adjustment, or it must be way underfueled..

majesty78 · Jan 3, 2009

If surge occurs, couldnt it be that remapping (turbo controll) isnt good?

Alex tdi · Jan 3, 2009

i dont know but my chip tuner dont understand this too

he says maybe it because n75 valve or the variable turbo geometry... but in real the this turbo should spooll on this engine? with that fueling...

majesty78 · Jan 3, 2009

Do you have VAGCOM / VCDS?

If you make some loggs with block 11 and WOT from 1500-4000rpm you will see what turbo control does...

Alex tdi · Jan 3, 2009

I dont have but can too make it

my friends hawe so I make it test soon....

seat cordoba coupe tdi agr

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