Rear Iron
06-10-08, 06:57 AM
#6
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I believe they are - but you want the S5 rear with both strengthening mods - probably off a 91 or later car - I broke my rear iron - probably down to twisting forces on a hard launch.
06-15-08, 12:00 AM
#7
Senior Member
Check your e shaft too....I just noticed a small crack in mine lOl.
This was a 3'rd gear down shift and unsprung clutch....I'm not too quick to say it was detonation with those factors unless some thing happened unknowingly after two years of torture .
s6's have it soo easy.....
This was a 3'rd gear down shift and unsprung clutch....I'm not too quick to say it was detonation with those factors unless some thing happened unknowingly after two years of torture .
s6's have it soo easy.....
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08-31-09, 07:27 PM
#9
I took a bunch of measurements when I upgraded to s5 irons: https://www.rx7club.com/2nd-generation-specific-1986-1992-17/just-measured-s5-turbo-rear-iron-factory-bracing-pics-795339/
I measured a 19% thicker dowel pin landing on the s5 I had, which came out of a 91 JDM engine I believe. Also, the secondary port runners are slightly bigger on the s5 irons, you can see it if you compare the s4 and s5 turbo LIM gaskets. I ended up swapping to all s5 irons and then used s5 JDM intake manifolds.
That won't work, there are a bunch of differences
I measured a 19% thicker dowel pin landing on the s5 I had, which came out of a 91 JDM engine I believe. Also, the secondary port runners are slightly bigger on the s5 irons, you can see it if you compare the s4 and s5 turbo LIM gaskets. I ended up swapping to all s5 irons and then used s5 JDM intake manifolds.
Well....I just cracked mine too! Must be something about Idaho?
Can you use a S6 iron?
Can you use a S6 iron?
09-02-09, 10:46 AM
#10
I took a bunch of measurements when I upgraded to s5 irons: https://www.rx7club.com/showthread.php?t=795339
I measured a 19% thicker dowel pin landing on the s5 I had, which came out of a 91 JDM engine I believe. Also, the secondary port runners are slightly bigger on the s5 irons, you can see it if you compare the s4 and s5 turbo LIM gaskets. I ended up swapping to all s5 irons and then used s5 JDM intake manifolds.
That won't work, there are a bunch of differences
I measured a 19% thicker dowel pin landing on the s5 I had, which came out of a 91 JDM engine I believe. Also, the secondary port runners are slightly bigger on the s5 irons, you can see it if you compare the s4 and s5 turbo LIM gaskets. I ended up swapping to all s5 irons and then used s5 JDM intake manifolds.
That won't work, there are a bunch of differences
09-02-09, 01:50 PM
#12
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09-02-09, 03:21 PM
#14
HBP, Haltech E6k, T72 running 23 PSI with meth injection.
Running 11.4 AFR
Pulls like a SOB!
Apex seals are fine. Don't think I detonated. It happened in the middle of 2nd gear and pulled hard all the way thru 3rd. Didn't die when I came to stop like a blown engine does.
I thought my car was on fire! Grabbed the fire extinguisher and opened the hood. Engine was coated with oil!
Running 11.4 AFR
Pulls like a SOB!
Apex seals are fine. Don't think I detonated. It happened in the middle of 2nd gear and pulled hard all the way thru 3rd. Didn't die when I came to stop like a blown engine does.
I thought my car was on fire! Grabbed the fire extinguisher and opened the hood. Engine was coated with oil!
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