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Continuation of Test the limits of a D15b7!!!!

15240 Views 94 Replies 27 Participants Last post by  dpaqu
Well I figured I would start this thread here because I have now boosted the little d15 and the other tread was in the N/a section.

To give you a recap of all the things this little motor has had done to it in the last couple of months. view here

went to y8 intake and 60mm ls throttle body. This made close to the power of the itb's but used much less fuel and had fewer idle control problems. Also change ecu to a p06 which worked very well with the stock y7 cam profile compared to a p28. The stock p06 ecu achieve the best fuel mileage ever out of the car it consistently got 38.5 miles per gallon on average

During all this I was building my turbo kit and now have it installed few pics of the setup

the turbo is a precision 60 trim 63A/r exhaust ball bearing.
cx racing intercooler donated by a friend.
rc550 injectors for fuel enrichment
ebay cast manifold exchanged for paint ball gun that sat in closet for years.
every thing else fab by me and my tuner.

It is currently on 3psi now because wastegate has a leaky diaphragm. We also installed the lightest wastegate spring we could find in the shop because it currently has no intercooler. I lack the piping. :( I am ordering it on Friday when I get paid. This being said we still tuned it at this setting starting from a previous map of a similar set up. It pulls almost as hard as my friends b20 vtec hatch but heat sokes quickly so only really go it to boost on cool nights. I hope to have the intercooler piping, new wastegate, and tuned on at least 6psi by the time IFO comes in the beginning of October just curious what she will run hoping for low 14's.
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I have a buddy that pushed his stock rods with arp's to 287whp and ran it that way for 8 years with no problems. Then he sold the car and the guy upped the boost 2lbs and bent a rod.
That's insane

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