soyo

anyone know the average cost of a mild or extended port for a N/A 91 rx-7?

BigTone

Depends on who ports it for you. You will need your engine disassembled, so you might as well rebuild it at the same time. In addition to the cost of the rebuild, most places charge from $100 to $300ish depending on what type of port it is.

stevensimon

iTrader: (11)

woah thats it?
crazy. i was thinking 500-700, i just might have to rebuild this spare block now.

CrackHeadMel

iTrader: (2)

You could always do it yourself. Buy a dremel, some carbide burr's. Troll the F/S section and find someeone parting out a pop'd engine and buy the housings. Im still working on my first engine now, however its not that hard, just go slow and read alot

-Jacob

dorifc3s

i c em for round 300 ish

soyo

sweet, I was hoping it wasn't more than abotu 300 bucks

stevensimon

iTrader: (11)

hey mel, did u buy tremplates? and how slow is slow? like hours, days, weeks, or months?

CrackHeadMel

iTrader: (2)

Im working on a partial bridge, lil more work than a streetport, however ive got maby 7-8hs+ into it. I have ported the front secondary and both primarys, i have to do the entire rear secondary and finish porting the runners on all 4. This is also my first time porting, so its probably taking me a lil longer than if I had done this before

-Jacob

Aaron Cake

iTrader: (1)

Yeah, if you are comfortable, do it yourself. To me, a dremel is to wussy to do the major material removal. A die grinder is the only way to go...After that, clean up with the Dremel. Also, get a good set of abrasives. What auto parts stores sell are crap. Standard Abrasives makes a cylinder head porting kit that works quite well...

version13

The street port may cost that much, but it will cost nearly $1k for engine removal, taking it apart, etcetera. (according to pinapple racind)

stevensimon

iTrader: (11)

it helps to have a spare block laying around just for this kind of thing.

Kim

Do it yourself, I ported all six ports in approximately 7-8 hours usind diamond grinding points.

So far its been free, I use the tool we have at work...
https://www.rx7club.com/showthread.p...79#post2587579