Planning on getting a new 406 - interesting info

Foxy · Post by **Foxy** » Wed Oct 18, 2006 6:19 am

So let me get this straight regarding your old car. Every man and his dogs' 406 turbo puts out 150bhp (give or take a few) at the fly in standard form (manufactuers figures are fly figures) but yours was over 160 at the wheels standard which - taking into account a 20% transmission loss gives 190bhp at the fly.....

One of 3 things is possible here - either your car was highly tuned to almost Cosworth power before you got it (unlikley), or you have been misled by certain people or you are full of it.

I did some research regarding the 406 pistons, they are not the same as the flat tops in the T16 however they do share they same rods and bearings. The V6 has flat top pistons..

Malachy · Post by **Malachy** » Wed Oct 18, 2006 3:27 pm

Foxy wrote:So let me get this straight regarding your old car. Every man and his dogs' 406 turbo puts out 150bhp (give or take a few) at the fly in standard form (manufactuers figures are fly figures) but yours was over 160 at the wheels standard which - taking into account a 20% transmission loss gives 190bhp at the fly.....

One of 3 things is possible here - either your car was highly tuned to almost Cosworth power before you got it (unlikley), or you have been misled by certain people or you are full of it.

I did some research regarding the 406 pistons, they are not the same as the flat tops in the T16 however they do share they same rods and bearings. The V6 has flat top pistons..

show me ya fancy part cd pics all you want. i have had the head off my engine and i know my engine does not have dished pistons

i Also know quite a few 205 owners who dont have dished pistons shown on your parts cd. Maybe as you say its just the 406 engine that has them? My engine is from a xantia activa but i dont see this being a good enough reason.
however according to 205gtidrivers it does seem some of the engines do and some of them dont. guess its just typical psa parts bin specials

Post by **Welly** » Wed Oct 18, 2006 4:32 pm

Funny that about different pistons, when I had a 309 GRi 1.6 (GTi engine) the Pistons were the 1.9 ones but with the 1.6 Rods (I hope I've got that right) as the only difference was the stroke of the engine (hope that's right too).

As you say, parts bin madness

Malachy · Post by **Malachy** » Wed Oct 18, 2006 4:37 pm

XU5

The XU5 had a displacement of 1.6 L (1580 cc), with a bore of 83 mm (3.3 in) and a stroke of 73 mm (2.9 in). All XU5 engines were SOHC 2-valve per cylinder designs. It used either a single or double-barrel carburetor or fuel injection, depending on model. Output ranged from 80–115 PS (79–113 hp/59–85 kW).

XU9

The XU9 had a displacement of 1.9 L (1905 cc), with a bore of 83 mm (3.3 in) and a stroke of 88 mm (3.5 in). Many versions were produced, from a double-barrel carburetted 8-valve to a 16-valve DOHC fuel injected model. Output ranged from 105–160 PS (104–158 hp/77–118 kW).

as you can see the only difference is the stroke, this is 88mm on the 1.9 the rods + pistons will be the same (might be slight differences but being an xu they will be cross compatable)

this is another area hiflow screw up in, they sell you an "88mm stroker kit" for your turbo, all it is is a 1.9 crank with 1.9 dt bearing caps (the 1.9dt was the only iron block with the 88mm crank) and are happy to charge you silly money for it

=|[PsychoPoet406]|= · Post by **=|[PsychoPoet406]|=** » Wed Oct 18, 2006 8:13 pm

foxy wrote:One of 3 things is possible here - either your car was highly tuned to almost Cosworth power before you got it (unlikley), or you have been misled by certain people or you are full of it.

Or my car was just good, and you can't take it. Sounds like Endeavour would have demolished your car in any trial, to be honest.

niz406 · Post by **niz406** » Wed Oct 18, 2006 8:19 pm

I've got dished lids on me piston crowns.... proper Bo' Yeah so stick it !

Foxy

I think poet is referring to UK spec impreza Turbo's, what you have to remember is that the UK versions of the Impreza 2000 Turbo were only 208hp - 215hp standard between 1994 and 2000, the boxer type 2 engine gave out the higher figure.

Imported Impreza's came in at 240hp all the way up to 285hp and beyond until the UK release of the P1 and then the newer post 2001 STi's, there are alot of crappy UK ones dressed up as their bigger brothers.... now trust me when I say I have blasted away a few UK imprezas, albeit non from a standing start.... ( and never would, unless the muppet couldn't drive !)

I've blown away plenty of Sports though from standing starts..... ( not something to bragg about I know! )

Malachy

Hi.....

Good research ! well done, the golden star goes to you

Welton

Keep packing them fudge cakes ! !

=|[PsychoPoet406]|= · Wed Oct 18, 2006 10:27 pm

I apologise for being a bitch in my last post. It's just been a while since someone doubted me over that car. All I can say is the car was what it was and it did what it could do, and I will always know that, so it isn't really relevant if someone wants to contest that a year and a half after I sold it.

Foxy · Post by **Foxy** » Thu Oct 19, 2006 6:26 am

bwwwhahahaha

Yeah, your 'Endeavour' would whoop my sorry cars ass. But hang on, I have a cone filter, twin exit exhaust and a bleed valve, so surely my car is 215bhp too?

Pub talk, all of it.

185bhp wheels > 215bhp at fly does not compute
You still havent said the torque figure
The rolling road ticket is hand written
You never mentioned what boost you were running
All those figures on that cardomain site are not accurate

Im getting bored of this now, I think Ive made my point quite clear. Im off to get in my 280bhp Citreon Xantia ---

niz406 · Post by **niz406** » Thu Oct 19, 2006 11:36 am

Foxy wrote:Pub talk, all of it.

Stop going to the pub then !

a std 406 Turbo (SRi or EXEC) is a match for a std UK Impreza 2000 Turbo ( just not from a standing start, but it can catch up lol )

Foxy · Post by **Foxy** » Thu Oct 19, 2006 5:01 pm

Niz, catch up old son.... Im talking about 215bhp from a bleed valve and exhaust

niz406 · Post by **niz406** » Thu Oct 19, 2006 5:31 pm

Sorry, its cause I'm at work and taking a sneaky peek ! lol

Well they say 185hp @ the wheels from the extra boost @12p.s.i and an induction kit (not much gain at all on a turbo ) and exhaust... was it a decat system or what?

Have you ever run the car on std boost I.E bleed valve or boost controller closed or turned off and watched your boost gauge? The 406's electronic boost controller is so smart !

There is a reason why 1st and 2nd gears are so lame.... lol they get like 6 p.s.i each moving up to a maximum of like 12 p.s.i in 5th gear

Foxy · Post by **Foxy** » Thu Oct 19, 2006 5:43 pm

I changed my mind, Im convinced that the car had that power from just a bleed valve and exhaust.

Because that means mine will be 250+

=|[PsychoPoet406]|= · Post by **=|[PsychoPoet406]|=** » Thu Oct 19, 2006 7:47 pm

Foxy, you're making a prat out of yourself now; no-one cares.

I asked in another thread about the differences in performance between the standard 2.0 turbo and the standard 3.0 V6. Is it really that different? I'm sort of hoping for the sort of acceleration that feels like you're leaving your stomach behind.

Foxy · Post by **Foxy** » Thu Oct 19, 2006 8:04 pm

Yeah youre right no one cares.
I dont know what came over me to challenge your ridiculous claims, please accept my apology.

niz406 · Post by **niz406** » Thu Oct 19, 2006 8:55 pm

And then they kissed, hugged, shared a pint and made up..... or what ever else it is that foxy and poet like to do...