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406 turbo pistons

Posted: Mon Apr 18, 2011 8:08 am
by Ares
hello,im new here so if i post somwhere wrong,i apologise :)
my name is Silvester,coming from Croatia.

here s my problem.
i have an 2.0 Peugeot 406 turbo year 97,and it apparently has a weak pistons.
thats why it was produced only from 96-98.
i wanted to remap my ECU to gain some torq and hp but i dont know what are the reliability limit of the pistons.
now it has around 140-150 hp,and with ECU remap it would be around 180-190hp.
now,i have found here you,406 maniacs like myself :lol: and any opinions are welcome.
if somebody has here turbo like mine and done ecu remapping,let me know.

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 7:03 pm
by TRAVIS BICKLE
There are a number of people with our engine fitted in 205s and 306s, most of these are running between 180 and 200 BHP on standard internals with no problems whatsoever. in fact DP Engineering state the engine can take up to 300BHP on the standard pistons.
My engine is about to be transplanted into a 306 in the next couple of months and is standard at the moment, it has its work cut out shifting a heavy estate car around, but even so its still fairly sprightly, it has the same torque as the ford 2.5V6 :mrgreen:

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 8:00 pm
by Gary406
Ares wrote:hello,im new here so if i post somwhere wrong,i apologise :)
my name is Silvester,coming from Croatia.

here s my problem.
i have an 2.0 Peugeot 406 turbo year 97,and it apparently has a weak pistons.
thats why it was produced only from 96-98.
i wanted to remap my ECU to gain some torq and hp but i dont know what are the reliability limit of the pistons.
now it has around 140-150 hp,and with ECU remap it would be around 180-190hp.
now,i have found here you,406 maniacs like myself :lol: and any opinions are welcome.
if somebody has here turbo like mine and done ecu remapping,let me know.
the 406 petrol turbo is a low pressure turbo. i really doubt any re-map for a 2.0 turbo 406 petrol would gain 40-50bhp (who told you these figures)

if you want that sort of bhp and torque , get a car like my mates . a VW golf 2006 2.0TDi, 170bhp 250+torque. it shifts like no 2moro.

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 8:32 pm
by lozz
My mate had a 2litre tubby xantia remapped ithink theyre the same engine
icarnt put a figure on the increase but it was a big differnce that thing was Rapid,
ididnt like the car but it was fun to drive 8)

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 8:47 pm
by TRAVIS BICKLE
lozz wrote:My mate had a 2litre tubby xantia remapped ithink theyre the same engine
icarnt put a figure on the increase but it was a big differnce that thing was Rapid,
ididnt like the car but it was fun to drive 8)
They are the same engine, i just put a low mileage xantia engine in mine :)
Although im breaking the car now but im keeping the engine to put in a 306 :twisted:

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 8:50 pm
by Gary406
i really doubt it gaining 40-50bhp from a remap :roll:

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 8:56 pm
by lozz
Gary406 wrote:i really doubt it gaining 40-50bhp from a remap :roll:
idont know mate tbh,
Maybe having one chipped might gain that tbh ithink there Quick enough as they are,

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 9:01 pm
by TRAVIS BICKLE
Gary406 wrote:i really doubt it gaining 40-50bhp from a remap :roll:
From a remap alone no, but Xantiaman was running boost up to the map sensor limit and getting good power, A good uprated intercooler, decent fuel pump, bigger injectors and something like a unichip piggyback ecu and hybrid turbo should see a comfortable and safe 200 ponies. The point is the bottom end is 250brake proven by many folk.

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 9:03 pm
by Gary406
thats a lot of work/cash 8)

Re: 406 turbo pistons

Posted: Fri Apr 22, 2011 9:21 pm
by TRAVIS BICKLE
Yup :mrgreen:

My old Nissans were cheap to get 50-100 brake more out of, just wind the boost up to one bar and chuck a walbro fuel pump in and an old saab 9000 intercooler on for an easy 220bhp. Spend about 500 quid for 300bhp. My old S14 was pumping 430bhp but that had some more serious mods inc forged internals.

Re: 406 turbo pistons

Posted: Sun Apr 24, 2011 5:34 pm
by jonnyturbo
remember this engine was built for cruising not for power so gaining power from one of these engines may cost you a decent amount, 240bhp-260bhp iirc was gained using a t3 turbo, aftermarket management, stage 3 catcam and obviously a bigger intercooler. map sensor can handle 1 bar of boost which will probley give you around 180-200bhp with a decent i/c and exhaust setup

Re: 406 turbo pistons

Posted: Sun Apr 24, 2011 9:27 pm
by Ares
1st of all,Big Thanx to all u guzy for answering.

haha Travis Bickle,thats crazy but i like it,V6 ford torque 8)

Gary406,i heared that from a few sources,dont know,for sure,i will see for that.

lozz,yes,xiantia had the same engine,and thats a good thing if xiantia was faster after :cheesy:

johnny turbo,i know that this engine is a cruiser :cheesy: but what the hell,slowly,i will maybe create something of it :evil:

Re: 406 turbo pistons

Posted: Sun Apr 24, 2011 11:51 pm
by craigtd
does anyone know where the map sensor is on the 406 as ive been told my car needs a new one ?

Re: 406 turbo pistons

Posted: Mon Apr 25, 2011 1:53 am
by jonnyturbo
inside the ecu

Re: 406 turbo pistons

Posted: Mon Apr 25, 2011 8:23 am
by craigtd
so can this be changed or is it a case of a new ecu,im not sure it is the map sensor mind,i think the actuator has been set up wrong.hence the over boost ?