K guys 1990 turbo rx7...

i cant make up my f#$@in mind.. rebuild with hurly seals and streetport for 2920 cdn... with my rear housing having a big gouge in it? or brand new from mazda for $3400 cdn? mazda dont want to give me my core charge. thats not the point though. which one will last me longer? i have intake and rb turbo exhaust. gonna do up fuel system either way.. i hope u guys can give me a answer by tomorrow. becuase im a fone call away to decide.

PS personally my choice is brand new. but if u guys can tell me how long a rebuild lasts that might change my mind..

greatly appreciated..thanks.

 

a 1990 engine that is brand new? or ..remanufactured?

 

thats a good question. so outta the rebuild, brand new and remanufactured which one will last longer? i'll find out 2morrow if its remanufactured or brand new..

thanks guy....

 

1.Checked the Mazda parts computer and there is no such thing as a New Engine.There is only a remanufactured engine available and the list price is about $2485 Can(plus taxes of course).
2.The nearest thing to a new engine would be to buy new parts and assemble them.I couldn't afford it!Rotor housings-$540 each,rotors-$480 each,apex seals-$55 x6,oil seal kit etc etc.
3.Don't use a gouged housing.Also if you have any mileage at all the housings are likely out of spec width wise(they shrink).

 

ok.. so which would last me longer? a remanufactured engine or a streetported with 3mm hury seals rebuilt? with those mods i listed.. and mazda dont want to take my core back thats why its $3400...

thanks.. (HERE COMES THE FINAL ANSWER,LOL)

 

yea it wouldnt be brand new, but remanufactured. personally, i would go with the rebuild with the streetport

 

so.. which one is safe and reliable? remanufactured or rebuilt with streetport and 3mm hurly seals?

thanks..

 

so can neone answer this one last question so i can go order in the engine?

thanks

 

I can't answer your question,but I do know that that Mazda's core charge is $600 and that the dealer is required to accept a core if you have one.The only requirement for the core is that it be devoid of fluids,be the same model as the one purchased and be assembled.The net cost to you for a reman motor should be $2485.Also most dealers here in Ontario will discount for cash(typically $200,their cost is about $1900).
I have used 2 Mazda rebuilds over the past 5years and have been happy with them.

 

I've been told by a rotary engine builder of 10 years that the Mazda engines are built to very exacting standards. Matching their quality if very diffacult, but some can come close.

This issue for you, IMHO, is irrelevant. If you're running a modified turbo II and you screw something up, all the build quality in the world isn't going to keep that motor together.

 

well guys thanks for all the informaiton. i decided to go with the stock mazda engine. i have intake and rb turbo back exhaust. i also ordered 780 cc secondaries, 20b fuel pump and apex afc...

what gauges are most recommenended?

thanks..