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Yeah it pulls awesome in the race car and had no issues in the bores or with heat (do run methanol though)
Im rebuilding an NG Pajero as full time drive car for business and pleasure and i want that bit more grunt. Hmm maybe back to the drawing board to find another solution.

Should have mentioned its a 4G54 and i want it as a basically standard everyday driver. No balance shafts,34 Weber conversion from ReCarb, extractors, 2"system and Acell coil.

Hi all Has anyone here put patrol pistons in their road car?
We do it in speedway car but wondering if anyone has tried in road car.

Regards Dale

Ive got an Astron 1 head small valves small ports and the small water port.
It has the kidney shaped chamber?? has anyone seen one of these.??? whats it of??
Its been ported and cleaned up.
Its running 500 holy on methanol for speedway.would an M8 head be better..??

3f toyota is 92 +1=93 pin is right just needs a bit turned of the top to get back to deck hieght. problemis i cant find out haw far we can bore safely?? I allready have a 2.6 methanol motor and its only $210 for 205 liter drum. I cant afford to start again with EFI and motec computers etc etc. Thats...

Are they happy to run up there consistantly

I havnt really because the carby 54 is a holly 500 on methanol so i get a great hp gain there..Also im an old fart thats on a tight budget and not really up with the efi world yet. I get sponsored for my machine work and cost price engine bits. I was hoping to build a big cube hauler rather than the...

Hi Guys Building new methanol speedway engine for my Siggy. The only rules are mitsubishi block must be used :) everything else is open. i have searched every where and i cant find anyone using bigger than 92mm how far can these blocks be bored safely. is 96 to much??? Im also considering using a 52...

Local parts stores dont even list them.

Theres a Sigma speedway car on the sunshine coast with a complete VL K frame struts etc: Ive had a look under it and it looks factory ..must have been an easy conversion.

Yeah thanks mate..Been running the same thing so long and everyone else is getting faster except me..time to kick some ass again.Sigma Style.

Thanks for that.

Thats great info.
Yeah im putting in a high comp methanol holley 2.6 so im hoping to have 150+rwhp and plenty of torque.
As a side note that is important in this discussion i suppose.

We have been spinning the 2ltr to 7500+ for years..Is the 2.6 going to take those sort of revs.??

Hi Guys im new here. I have been searching here for hours and cant find this info. Been racing a sigma on speedway for years and about to do engine upgrade fron 2lt astron to a 2.6 wide astron What im after is the ratios of the 2 gearboxs so i can work out total gearing. Really only need 2nd gear ra...