My b16 turbo ek4


Should look even better soon - been busy painting the bay up and few shiny coats of lacquer !!
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Few pics with new wheels fitted and red H - badges removed for colour coded stocks ones
What ya think ?
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Car has been to Corbeau to have the back end re trimmed - well happy with the result .
Also finally got my boost by gears working - now have traction !!!
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Haven't up dated this for a while !
I've changed my setup now due to the manifold finally splitting and turbo oil seals blew .
I bought a custom made topside manifold , and decided to go for a new holset h1c turbo .
After receiving the turbo , I thought I'd bought the wrong turbo as it has the larger 18cm2 exhaust housing but after mapping tonight I'm more then happy .
No where near as laggy as my Turbonetics , responsive & sounds amazing too .
Mapped to 9psi tonight on the road - amazing already !!! Weve hired the rollers at sumo power tomorrow afternoon so see what it's gonna do then...
Few pics
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To
 
Cheers guys - car made 336 @ wheels - not sure what that works out at the flywheel. But it's fookin nuts !!!
Had to stop there though as my wastegate spring is to soft , only a 7psi spring .
Up to 88% duty on my boost solenoid and wouldn't respond to anymore , plus the boost was dropping straight off .
Next is to get a stronger spring - 14psi and give it another go .

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I'll try and get a vid uploaded with it on the dyno too
 
Bit of a story to tell but might be some interest to a few ...
Finally got round to fitting my 1 bar spring to sort my boost dropping off , went out mapping on the road and holding now and duty cycle came down loads on the boost solenoid .
Had to put a fare bit of fuel in top end and the car feel good on the bum dyno !!!
So I arranged a dyno day local to me to see the outcome ,
It made another 5 hp more , thought something wasn't right but increased the boost 0.2 bar and a Tweek on the map - result was 0.8hp more ..
So something on my set up was restricting .
After lots of head scratching , it was something silly that I totally over looked -
Was running 2 inch boost pipes from the turbo to the offside wing , then it won't to 2.75 to throttle body ... Doh . I worked out the flow rate of the turbo and intake pipes and was exceeding them by loads ...
So I re- done my intake system in 2.5 inch up to the 2.75 .
Went for a road test and realised it's made a huge difference even just on cruise , was tickling the throttle and was seeing 16-17afr .
I got over to my mappers house and we set off for the evening re doing the map ...
I couldn't believe what a difference this made .
Loads of fuel added low down and top end with a increase in spool .
I'm now seeing 10 psi at 4350 rpm , we cross ref to my dyno graph and was seeing about 3-4psi .
But the top end now is nuts -gonna get another dyno session sorted soon .
So i learned about boost pipe sizing . !
 
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