13B or 13BREW in my 89 TII
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From: Rochester, MI
13B or 13BREW in my 89 TII
I'm to the point now where its engine time for the FC. I'm at a crossroad now cause I can either build a standard 13B for the 89, or I can put a 13BREW in? So if I'm gonna go 3mm ceramice apex seals, new housings, street port, and titanium dowels..what should I do...spend more for the FD block, or stay FC. I think that there are more parts for the FD block...but I don't know what to do?
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From: SoCal
Hmm...
I would recommend either staying w/ the 13B-T block and utilizing 13B-REW components like the stationary gear, possibly the housings, etc. OR swapping in a 13B-RE motor.
The 13B-REW is tempting, but you need access to fabrication equipment and raw materials to make it cost effective. This is something that not everyone has.
I'm basically in the same position you are in. But, for now, I am choosing to stay w/ the 13B-T block.
I would recommend either staying w/ the 13B-T block and utilizing 13B-REW components like the stationary gear, possibly the housings, etc. OR swapping in a 13B-RE motor.
The 13B-REW is tempting, but you need access to fabrication equipment and raw materials to make it cost effective. This is something that not everyone has.
I'm basically in the same position you are in. But, for now, I am choosing to stay w/ the 13B-T block.
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From: Rochester, MI
Originally posted by MaTT_FoULk
A j-spec 13B-RE is a better fit than the REW. The REW requires some custom work to mount while their are motor mounts availible for the 13B-RE.
A j-spec 13B-RE is a better fit than the REW. The REW requires some custom work to mount while their are motor mounts availible for the 13B-RE.
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From: SoCal
www.fc3s.org (jspec engines section)
http://www.roadraceengineering.com/323trannylist.htm (scroll down for a list of engine suppliers. Road/Race Engineering is very reputable and they listed some engine suppliers. Those engine suppliers may have 13B-REs.).
Also, rx7tt95 is putting a 13B-RE in his FD. PM him to see where he got his engine.
http://www.roadraceengineering.com/323trannylist.htm (scroll down for a list of engine suppliers. Road/Race Engineering is very reputable and they listed some engine suppliers. Those engine suppliers may have 13B-REs.).
Also, rx7tt95 is putting a 13B-RE in his FD. PM him to see where he got his engine.
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From: Rochester, MI
Okay, well let me ask you this? For parts to be readily available wouldn't it be smarter to get the REW so that I have a number of parts available...as I've never dealt with the RE, I don't know of the parts for it
I'm a boost creep...
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From: Auckland, New Zealand
Originally posted by Dltreezan
whats the difference between a 13b re and a 13b rew?
whats the difference between a 13b re and a 13b rew?
AFAIK, apart from mounting differences the basic engine is the same. The most obvious difference is the inlet manifold. The FD engine's manifold has runners that merge straight into the TB, whereas the JC engine has runners that are fed by a log manifold just like a 20B (only shorter). The JC manifold looks like the better one for flow, but the FD one looks like it was made to fit under a much lower bonnet line.
The JC engine has a different state of tune (less power, same torque at lower revs) but that was more a factor of the ECU's programming, so that won't be an issue.
The JC engine requires only a set of custom engine mounts, whereas the FD engine requires major modification and fabrication to fit, so it's an easy choice.
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From: Rochester, MI
Originally posted by NZConvertible
Mazda actually refer to both the FD RX-7 and JC Cosmo engines as 13B-REW (the "W" means twin-turbo), but the JC's engine has "13B-RE" cast into the top of the inlet manifold, so that's how people refer to it.
AFAIK, apart from mounting differences the basic engine is the same. The most obvious difference is the inlet manifold. The FD engine's manifold has runners that merge straight into the TB, whereas the JC engine has runners that are fed by a log manifold just like a 20B (only shorter). The JC manifold looks like the better one for flow, but the FD one looks like it was made to fit under a much lower bonnet line.
The JC engine has a different state of tune (less power, same torque at lower revs) but that was more a factor of the ECU's programming, so that won't be an issue.
The JC engine requires only a set of custom engine mounts, whereas the FD engine requires major modification and fabrication to fit, so it's an easy choice.
Mazda actually refer to both the FD RX-7 and JC Cosmo engines as 13B-REW (the "W" means twin-turbo), but the JC's engine has "13B-RE" cast into the top of the inlet manifold, so that's how people refer to it.
AFAIK, apart from mounting differences the basic engine is the same. The most obvious difference is the inlet manifold. The FD engine's manifold has runners that merge straight into the TB, whereas the JC engine has runners that are fed by a log manifold just like a 20B (only shorter). The JC manifold looks like the better one for flow, but the FD one looks like it was made to fit under a much lower bonnet line.
The JC engine has a different state of tune (less power, same torque at lower revs) but that was more a factor of the ECU's programming, so that won't be an issue.
The JC engine requires only a set of custom engine mounts, whereas the FD engine requires major modification and fabrication to fit, so it's an easy choice.
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