7AGTE 20v TE71 Sedan Track Car build

[Sprinter86]

Found the problem, wastegate pretty flogged leaking boost past the valve guide. back on the rollers soon and hopefully go for a proper power run!

[pen15]

yeah thats a bad #### i cant wait to see numbers what injectoirs are you running?

[Sprinter86]

cheers mate!, um running sard 800cc 2j injectors.

we snapped the dowel in the inlet cam in the middle of a power run, due to 'OBX' camgears being shit, should of googled the brand before, notorious for manufacturing errors.

TODA Cam Gears on the way now.

For some unknown reason we really arn't getting much more power than 185kw, i figure we should be seeing at least 100kw more than that.

im sure it will be something silly that was overlooked, hopefully can sort it out.




split a water hose at the end of this dyno run haha

[Delazy]

7AG motors seem notorious for under performing due to cam timing issues...id be starting with that

[Sprinter86]

^^^ best thing ive heard in ages! i really do hope that is the case here

[B-Lugg]

Oi, you, update.

[Sprinter86]

I really have been lazy with the updating!

I have basically gone back to drawing board with the engine and starting again. with a heap of help from Stu at cave hill engines!

Basically i have changed pistons to toyota 4agze items.
Teflon coated the skirts and ceramic coated the crowns.
Using a crank girdle and moroso baffled sump this time also.
Head is receiving a full port and chamber job complimented with 1mm oversize supertech valves.

Dont have many pictures yet but assembly starts next week.

heres a few pics of the port and chamber work:

Inlet match ported to black throttle manifold:



De-shrouded smoothed and polished chambers:



exhaust port:



I will take lots of pictures as we re assemble the engine, she will be back!

[Sprinter86]

And here we go!

[Sprinter86]

[Sprinter86]