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It shows 100 at idle ( it was a really hot day ), mid run 145 and end of run 190 .

This is all pre methanol temperature numbers.My injectors are all down runner from the manifold air sensor.

The sensor is at the back of the manifold.

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This run was at 22 PSI

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you run a standard adjustable wastegate or do you use any type of controller? i would think if it's allowed a wastegate controller would be standard on a car like that...nice workmanship and numbers

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24 PTE #160 injectors and a AMS 1000 with turbosmart 60mm waste-gates

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So what did you do to stop the head gasket blowing and torching the blocks?


Getting waaaay down there.. But I know you want more..



Chris..

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When I first put the engine together I used a Cometic gasket based of a standard BBD . This gasket has relief cuts encroaching into the firing ring seal to accommodate the in-line valve placement.The dowel pins on the heads are close to the bore when you get to 4.5" bores and consequently that zone has the greatest distance between head bolts.
I think a few small factors might of added up to a week zone for the cylinder preasure to escape and damage the block and cylinder head. ( no my dowel pins were not holding my head up )





You can see in the picture that even the dowel hole is in the sealing ring area. The physical properties of the gasket made failure only a matter of time ( actually a matter of preasure but time sounds more dramatic )

So its on to plan B

- more clamping force on the affected area
- remove dowels from beside the bore zone.
- physically hold the gasket in place with o-ring

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a pic

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Your ET is approaching my RT.