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My Pepper White R55 s N14 , évolution in Progress

11884 Views 94 Replies 10 Participants Last post by  seb80
10
Bonjour, j'ai une r55s N 14 2009 depuis 10 ans

J'ai commencé les journées sur piste fin 2013, j'utilise la r55 pour tous les jours et 6 ou 7 pistes jour après année (pas pour la compétition)
Avec le k03 Loba270 turbo, c'était un très bon turbo (réactivité) mais pas sur le grand circuit (Le Mans, Magny Cours)
J'ai testé après un k04 Mambatek, ce n'est pas une bonne pièce, mauvaise réactivité, déformation de l'axe de soupape de la vanne de décharge lors du premier trackday
Après avoir testé un k04 hybride par Hpturbo, de bonnes performances (287ch), mais même problème que Mambatek, je pense que c'est la même origine pour la vanne de décharge

Je veux une bonne configuration avec une bonne fiabilité
Après avoir vu le projet de Thepenl et Arke, j'ai acheté
Collector et 308 gti turbo
Decata 70mm Bastuck
Turbo protection thermique RCZR
308 support de vidage
Garde de bloc
Injecteur GM


My Project is in progress , modification in progress for the turbo ( new intake wheel)
I have not at this Time
pistons (RV 9.5)
connecting rods forged
Exhaust 70 or 76mm
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With Airifix air inducter + Ebay led ...

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it's not the same ...
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i win 2 cm with radiator displacment and van displacement
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I hope finish my Project before july ....

My youtube Chanel :
https://youtube.com/channel/UCZZSznHdRICMrniob_nj_YA

My configuration
OTA BMC air filter
Wagner competition intercooler
Quaife
Clutchmaster fx 350
Manic soft stage 3 ( but not for the 308 turbo project)

B16 Bistein
Eibach camber plate
Eibach barre stabilisatrice front and rear
356MM XYZ brakes with Rc6 ( i tested DS Uno (nice) , PBS Prorace ( nice ) , EBC Yellow (bad
JCW rear brake with PBS Prorace
R888 , A052 , Cup2 tyre for trackday and Michelin PSS for daily
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What's your compression like?

Sent from my SM-G965F using Tapatalk
8/9 b , I have a new pistons Carillo sc7513
8/9 b , I have a new pistons Carillo sc7513
That's quite low. Have you reduced the compression ratio? My rebuilt engine is just over 12 bar across all 4...

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That's quite low. Have you reduced the compression ratio? My rebuilt engine is just over 12 bar across all 4...

Sent from my SM-G965F using Tapatalk
Yes , it s a Cp pistons with cr 9.5
fwiw that timing clearance looks a bit high to me,

are you happy with the tool quality?
Here's a screenshot of the recently deleted NewTIS premium timing chain replacement procedure, showing measurements of the locking tool gaps.

However, you shouldn't be worried about the first couple minutes of cold engine performance. The ECU isn't happy until coolant has reached a minimum temperature. Can't remember the details, but right after my first tune, one of the temp overrides was overlooked and I threw a code if I got on it before this minimum temperature.

Personal opinion --- cold engines shouldn't be driven hard, or stressed enough to notice "bad" performance. If it cold-starts normally and drives OK after heating up, live with it.

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103873

Thanks Rpm is very no stable at cold , I don t understand I doublechecked the chain position , is ok
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5
Hello

I re re rechecked the timing
No visual defect for understand the bad idle at cold

I changed solenoid vanos , turbo, canister without good results
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0.95mm free play
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Do you have an hypothesis


For the reassembly I wait the catcams 603
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If it's not engine timing or compression you'll need to start looking at fuel and spark. Some decent diagnostics kit with live data should help narrow it down.

I would start looking at obvious things like alternator output and fuel rail pressure first then look for any reasons why the ECU might be cutting fuel due to detecting an issue. I would then look at fuel correction on all cylinders to see if there's one looking very different. Start with that and see what you find...

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So i have seen a few things cause bad colds starts. the most obvious is the high pressure pump may be faulty. can your scanner monitor rail pressure?. do the plugs look fouled at all? One other item that is constantly over looked is a faulty coolant temp sensor misreading which cause hard starts. the waste gate thing is odd though. Out lier could be a faulty head gasket sealing. when you turn off the hot engine, a little bit of coolant squirts into the cylinder as it cools causing a misfire at cold start until it clears out.
pretty awesome build though!
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Hello
I made a measure with the old soft ( Manic stage 3 for k03 hybrid , 1b55)
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Next step in progress : Aac by Boubis Cams
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I think I will have the Aac next week

I ordered the components for the exhaust

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My tuner will make the exhaust + injector assembly + soft adapted at my new configuration
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Hello, last evolution

Normaly the tune will be make in September

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Let me suggest you protect your new ICE Pipe with something like this hose clamp. After a few hard accelerations, vibration will eat a hole in the aluminum. Steel hose clamp is inexpensive and easy to install.

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Let me suggest you protect your new ICE Pipe with something like this hose clamp. After a few hard accelerations, vibration will eat a hole in the aluminum. Steel hose clamp is inexpensive and easy to install.

View attachment 104481
Thanks
I will make the same
Did you ever figure out your start up stumble?
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Hello

I modify the position of the pipe : it s ok now

Jeremiah sended me a picture of his low pressure fuel pump
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I received the 450lh Walbro pump

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I started the installation
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I wait 2 component for end

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Pump characteristics : 270 / 320lh at 4.8b (12 / 13.5v) , 170lh for the stock pump

I installed the JCW boost sensor

Last curve below with the old Manic soft , the tuner will make the soft at the end of September ( + install GM injector + 76mm exhaust line )
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Did you ever figure out your start up stumble?
The soft not adapted, I think

I will have the confirmation at the end of September
Hello
I m happy , good accélération with the last component ( jcw boost sensor , Walbro pump)

I made a comparison between aac stock VS Boubis aac + Walbro + aluminum intake pipe
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With AAC , tank pump , intake pipe OEM
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With Boubis AAC , Walbro 450lh pump , alu intake pipe

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Comparison

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I wait the end of September.....
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Hello , my Tuner work on the Clubman !

76mm Exhaust, and 2 exist 63.5mm in progress
Automotive tire Motor vehicle Vehicle Rim Bumper

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