IS Big power on S5 TII engine Possible ?
NOPR dude im sorry you totally did not get what was posted and miscued all my ****. Bottom line absolutely wrong about the castings period. who gives a damn about the angle who ever said about making the LIM mate who cares. It matters nothing.
everyone here needs to go read the thread in the rotary performance thread called why rear irons crack. The bottom line is there are at least 3 types of S5 rear housings
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...5&page=4&pp=15
http://www.rotaryresurrection.com/2n...ron_break.html
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...5&page=4&pp=15
http://www.rotaryresurrection.com/2n...ron_break.html
Last edited by slo; Jan 12, 2007 at 02:09 AM.
Joined: Oct 2003
Posts: 11,576
Likes: 27
From: Morristown, TN (east of Knoxville)
Originally Posted by iceblue
No offense sorry but that is incorrect. The dowels are identical to all 13b engines. The s5 rear iron has the same larger runner as the s5 front. Some s5 rears had identical castings to s4, some had the same size casting with a triangular reinforcement from the dowel to the oil filter pedestal, some s5's even had a much larger casting (same as the fd casting) plus the reinforcement.
As far as the runners ehh port them some.
As far as the runners ehh port them some.

The FD and FC irons/intake ports are COMPLETELY different. Not the port shape on the iron face. THe port runner diameter, placement, angle, etc. are all TOTALLY different. There is at LEAST 1 inch of difference between them...there is NO WAY an FC LIM will bolt to an FD iron and work. No amount of porting the LIM will take care of it either.
Have you ever even built an FD engine?

The dowel surrounding castings are FAR fatter on the FD than on the FC. This goes for front AND rear irons. There are a few FC rear irons floating around with the fat casting like the FD, but most do not have this. None of the front FC irons have a fat casting.
iceblue doesnt know ****, what can i say
i called him out months ago, and im calling him out again
3,500 for his rebuild - when he has built like what, 3.7 motors?
yes i said .7 because he didnt know what the **** hes doing.
i called him out months ago, and im calling him out again
3,500 for his rebuild - when he has built like what, 3.7 motors?
yes i said .7 because he didnt know what the **** hes doing.
Before anyone says I said FC and FD irons are interchangeable, I meant some are identicle, but only in the casting area of the dowell.
everyone here needs to go read the thread in the rotary performance thread called why rear irons crack. The bottom line is there are at least 3 types of S5 rear housings
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...05&page=4&pp=15
http://www.rotaryresurrection.com/2...iron_break.html
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...05&page=4&pp=15
http://www.rotaryresurrection.com/2...iron_break.html
Originally Posted by RotaryResurrection
What in the mother **** are you talking about? 
The FD and FC irons/intake ports are COMPLETELY different. Not the port shape on the iron face. The port runner diameter, placement, angle, etc. are all TOTALLY different. There is at LEAST 1 inch of difference between them...there is NO WAY an FC LIM will bolt to an FD iron and work. No amount of porting the LIM will take care of it either.
Have you ever even built an FD engine?
The dowel surrounding castings are FAR fatter on the FD than on the FC. This goes for front AND rear irons. There are a few FC rear irons floating around with the fat casting like the FD, but most do not have this. None of the front FC irons have a fat casting.

The FD and FC irons/intake ports are COMPLETELY different. Not the port shape on the iron face. The port runner diameter, placement, angle, etc. are all TOTALLY different. There is at LEAST 1 inch of difference between them...there is NO WAY an FC LIM will bolt to an FD iron and work. No amount of porting the LIM will take care of it either.
Have you ever even built an FD engine?

The dowel surrounding castings are FAR fatter on the FD than on the FC. This goes for front AND rear irons. There are a few FC rear irons floating around with the fat casting like the FD, but most do not have this. None of the front FC irons have a fat casting.
Yup that’s right I posted on the damn port shapes you got that right. No I didn’t post on the runner or the interchangeability get your reading glasses on. I said ehh just port the S5 I never said port to interchange did I no.
[AM 01:25] Iceblue 4evr SX: well correct me please if I am wrong here
[AM 01:27] Iceblue 4evr SX: S5 shared these castings. 1. same as S4. 2. Thicker land. 3. Thicker land with reinforcement around the oil pedastool. 4. Same casting as fd for the dowel
[AM 01:27] Dave Gibson: yup
[AM 01:27] Dave Gibson: i have seen them all
[AM 01:28] Iceblue 4evr SX: Thank you very much
You and Aaron must be a democrat because you like to flip flop sides to benefit yourself. Sadly it won’t work this time.
Originally Posted by RotaryResurrection
some s5's even had a much larger casting (same as the fd casting) plus the reinforcement.
Originally Posted by iceblue
Depends the S5 and FD shared the same rear iron.
Originally Posted by jacobcartmill
s5 and s6 rear iron is definitely NOT the same. you are wrong.
At least I am the one who has there facts straight. Next time GtoRx7, slpin, frostycrowd, NOPR, know what you’re talking about before posting.
Wow, iceblue, you are really shooting yourself in the foot here; insulting several respected members of the forum. Honestly, whether you are right or wrong, you are just making yourself look like an *** with your childish attitude.
But the democrat comment showed real intelligence....because briging up something completely irrelevant is a great way to win an argument!
But the democrat comment showed real intelligence....because briging up something completely irrelevant is a great way to win an argument!
Originally Posted by iceblue
At least I am the one who has there facts straight. Next time GtoRx7, slpin, frostycrowd, NOPR, know what you’re talking about before posting.
just for fun, I'll review the important stuff for you.
Originally Posted by LUPE
I'm talking 600 plus to the ground. Is this possible with the S5 TII engine with a 3rd gen rear iron ? Of course porting will be done too.......
I'm debating whether to use a S5 TII engine or a 13B REW engine.
I have access to a TII engine for a great price so I'm leaning more towards that.
Thanks.
I'm debating whether to use a S5 TII engine or a 13B REW engine.
I have access to a TII engine for a great price so I'm leaning more towards that.
Thanks.
Originally Posted by iceblue
Depends the S5 and FD shared the same rear iron. Some have the hardened rear and some have the hardened rear with triangular reinforcement same as FD. This option is a crap shoot but there. The housings are the same outside of spark plug casting. So is the motor any less potential prone? No I do not feel it is. If you have any concern of if none I still suggest the use of cryogenic treatments of the motor with studs.
Originally Posted by NOPR
why hasnt anyone mentioned that the FD ports and TII ports are COMPLETELY different? the FD ports angle upwards and are in a different spot on the outside of the iron. also, the TII manifold wont work with an FD rear plate.
Originally Posted by iceblue
Because what you believe is not so.
The P ports on the s5 are actually 10degrees earlier opening and 1mm wider then the FD P port. The secondary FD port is only 10deg earlier opening then the S5.
And on his engine build going for 600+whp do you think the stock ports are going to be used? The OEM ports mater about as much as a turd in a punch bowel to him.
The P ports on the s5 are actually 10degrees earlier opening and 1mm wider then the FD P port. The secondary FD port is only 10deg earlier opening then the S5.
And on his engine build going for 600+whp do you think the stock ports are going to be used? The OEM ports mater about as much as a turd in a punch bowel to him.
Originally Posted by NOPR
what do you mean by p ports? to me that means peripheral ports, so im sort of confused by what you mean. im referring to secondary ports, like the ones on the rear housing. what im saying is that they are entirely different on a TII engine that on an FD engine, and they cant be port matched the same. the FD ports are higher (on the outside of the engine) and angle downwards, while the FC ports go straight across. they dont line up at all (again, on the outside of the engine). So, if you run and FD rear iron on an otherwise S5 TII engine, you can use neither the FD manifold nor the TII manifold. this is my point.
Originally Posted by GtoRx7
Well, nothing against you, but the FD plates and FC plates are completely different. The rear dowel size is also completely different. The FD is much larger, and is extra fat all around it. The FC S5 is all the same, and has a little 45 degree cast piece to strengthen it. The S4 is the worst, and is the thinnest. The ports themselves are very close, however what NOPR was trying to say is that the runners are completely different! The FD has slightly larger, and angled runners, making the FC intake not work at all. The FD front plate also has a more beefy dowel pin reinforcement. So hands down a FD engine is a much stronger block than any FC engine ever produced.
Originally Posted by iceblue
No offense sorry but that is incorrect. The dowels are identical to all 13b engines. The s5 rear iron has the same larger runner as the s5 front. Some s5 rears had identical castings to s4, some had the same size casting with a triangular reinforcement from the dowel to the oil filter pedestal, some s5's even had a much larger casting (same as the fd casting) plus the reinforcement.
As far as the runners ehh port them some.
As far as the runners ehh port them some.
Originally Posted by NOPR
Originally Posted by iceblue
No offense sorry but that is incorrect. The dowels are identical to all 13b engines.
Originally Posted by iceblue
The s5 rear iron has the same larger runner as the s5 front.
Originally Posted by iceblue
Some s5 rears had identical castings to s4, some had the same size casting with a triangular reinforcement from the dowel to the oil filter pedestal, some s5's even had a much larger casting (same as the fd casting) plus the reinforcement.
Originally Posted by iceblue
As far as the runners ehh port them some.
Originally Posted by iceblue
NOPR dude im sorry you totally did not get what was posted and miscued all my ****. Bottom line absolutely wrong about the castings period. who gives a damn about the angle who ever said about making the LIM mate who cares. It matters nothing.
the bottom line is i was still correct in what i said about the castings, and you fail to point out what i specifically said thats wrong. you leave me with a blanket 'youre wrong'. what a help. also, the angle of the runner and intake manifold mating are crucial if youd like a running engine. my only point remains that you cant use an FD rear plate on an S5 TII engine because of these problems. so yes, these things DO matter since the original poster wanted to know if he use an FD rear plate on an S5 TII engine.
Originally Posted by FrankV702
hmm.. so can you use a FD rear plate on a S5 mani and have the LIM bolt right up to it???
Originally Posted by slo
everyone here needs to go read the thread in the rotary performance thread called why rear irons crack. The bottom line is there are at least 3 types of S5 rear housings
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...5&page=4&pp=15
http://www.rotaryresurrection.com/2n...ron_break.html
The one from the early s5's that is identicle in the dowel area to the s4
A reinforced model,
A more reinforced model, which may be identicle to the s6 and up engines
. The best one to get comes on most factory reman mazda's and was available on new engines released begging either 90 or 91. There is also a section with pictures on the rotary resurection site showing all.
Twords the middle of the thread, the use of oversized studs gets reviewed. Some lister claims (in a plausible way) to be running over 800 HP on a GSLSE motor (fully built) with oversized studs.
edit: links for the lazy https://www.rx7club.com/showthread.p...5&page=4&pp=15
http://www.rotaryresurrection.com/2n...ron_break.html
Originally Posted by jacobcartmill
Originally Posted by FrankV702
hmm.. so can you use a FD rear plate on a S5 mani and have the LIM bolt right up to it???
Originally Posted by jacobcartmill
Originally Posted by iceblue
Depends the S5 and FD shared the same rear iron.
Originally Posted by RotaryResurrection
Originally Posted by iceblue
No offense sorry but that is incorrect. The dowels are identical to all 13b engines. The s5 rear iron has the same larger runner as the s5 front. Some s5 rears had identical castings to s4, some had the same size casting with a triangular reinforcement from the dowel to the oil filter pedestal, some s5's even had a much larger casting (same as the fd casting) plus the reinforcement.
As far as the runners ehh port them some.
As far as the runners ehh port them some.

The FD and FC irons/intake ports are COMPLETELY different. Not the port shape on the iron face. THe port runner diameter, placement, angle, etc. are all TOTALLY different. There is at LEAST 1 inch of difference between them...there is NO WAY an FC LIM will bolt to an FD iron and work. No amount of porting the LIM will take care of it either.
Have you ever even built an FD engine?

The dowel surrounding castings are FAR fatter on the FD than on the FC. This goes for front AND rear irons. There are a few FC rear irons floating around with the fat casting like the FD, but most do not have this. None of the front FC irons have a fat casting.
this brings us back to where we started. im still not sure what you are even arguing about, but nothing that I, Gtorx7, Jacobcartmill, or RotaryResurrection posted is incorrect. we all agree about the casting. its funny how you quote a conversation with dave gibson simply to prove something to kevin landers that kevin landers already has on HIS website! this is after you tell him he's talentless. mature.
then you rudely call jacob cartmill wrong, even though he was right. Jacob was not talking about casting, he was talking about the plate in general. yes he quoted your post in which you were referring to the casting, but you never mentioned that in your first post so i blame you for the confusion. all you had to do was explain politely that you meant the casting, with a simple apology for the confusion, but i guess thats not your style.
okay then you say me, gtorx7, and frostycrowd need to get our facts straight before posting, but fail to point out anything any of us said wrong. (maybe because nothing we said was wrong?) as for slpin, you and him can beef it out yourselves, i know nothing about you, your shop, or your history, and quite frankly i dont care.
If you simply take the time to make your posts more thought out and clear instead of assuming we all know what you're talking about, everyone will benefit. your vague detail-less posts only hurt others by confusing them and spreading misinformation. It would be better to not post than to confuse and misinform. also, a mature attitude in handling disagreements will go a long way.
To much info but I can work with it.
My post to Lupe was based on any less power potential of the motor as if he found that plate there wouldn’t be any reason why it wont be as strong or as capable. As I only touched on the casting area as I feel that was all that was needed for my post. You are correct I did not answer his ? of can they be interchanged. Well simply yes. Who cares if the runner is shaped different or the stud placement is off. As long as you know this before hand. Just fab a new manifolds no big deal. if something doesn’t work then get in there and make it work.
You are correct on your post conscience as the work port geared me to port shape wile thinking this the word outside lead me to believe the timing bowel. So the point you made was valid but argued incorrectly. I see you posted again well your post did clear the matter up however Aarons incompetent action further pushed the clearance away as I could not see your post to clear the matter up with you properly nor did I notice it before my last post..
GtoRx7 posted and clearly stated the dowels as I was speaking of the entire time surly are different. This was indeed incorrect. As my entire review on this thread has been based on strength potential that if he can find the right S5 Iron he won’t have to worry. We also went as far as to clarifying what causes the braking if how concerned he will have to be with finding this iron.
You said I disagreed again but somehow im wrong as my only argument is the dowel pins. My only argument the entire time was about the dowel pins. GtoRx7 stated both dowel pins and casting while dowel pins could possibly be a misunderstanding I added it to the review of the casting.
You bring up my post about the runner and I stating port them some. You stated now they can’t be port matched to fit the lims. However I was never speaking of matching anything or swapping anything. I saying the runners of FD are bettor big deal just port the S5 ones and they can be just as good if needed. This also means do port work to the runners and manifold if it concerns you that much. So yup more confusion as we both were focused on other parts of the motor and different techniques.
And then you post Kevin comes in however respected you want to image brings up totally bogus in a quite frankly rude arrogant and incompetently attempts to slander me about stuff I never even once posted about. As I said the entire time this has been based on the casting. I never once said the runners were the same or bolt up to S5, people assumed "to make an *** out of me and you" I said this. Then just repeats me but also disproves himself by saying the FD castings are far fatter then the FC. Then says a few fc irons floating around with the fat casting like FD. Well what one is it? I quote Dave Gibson to further clear the matter up as it is seeing people think I am wrong about the castings.
And as it was all my posts were based on the Iron dowel except our confused post on ports. And if you quote me to say something was different as Jacob did between s5 and s6 then it was wrong period. I never once talked or stated about the studs or port placement.
If you want to know my shop come stop buy. At least im not making **** in my garage and building motors with used parts. Then you got Aaron trying to play hot shot tuff guy ill teach you and ban me like I give a flying **** for misinformation when I have still yet to be misinforming. However you and I had a misunderstanding yet others have indeed posted misinformation on the castings. So then to you NOPR I apologies for adding your name into that post and you were correct on your statements.
My post to Lupe was based on any less power potential of the motor as if he found that plate there wouldn’t be any reason why it wont be as strong or as capable. As I only touched on the casting area as I feel that was all that was needed for my post. You are correct I did not answer his ? of can they be interchanged. Well simply yes. Who cares if the runner is shaped different or the stud placement is off. As long as you know this before hand. Just fab a new manifolds no big deal. if something doesn’t work then get in there and make it work.
You are correct on your post conscience as the work port geared me to port shape wile thinking this the word outside lead me to believe the timing bowel. So the point you made was valid but argued incorrectly. I see you posted again well your post did clear the matter up however Aarons incompetent action further pushed the clearance away as I could not see your post to clear the matter up with you properly nor did I notice it before my last post..
GtoRx7 posted and clearly stated the dowels as I was speaking of the entire time surly are different. This was indeed incorrect. As my entire review on this thread has been based on strength potential that if he can find the right S5 Iron he won’t have to worry. We also went as far as to clarifying what causes the braking if how concerned he will have to be with finding this iron.
You said I disagreed again but somehow im wrong as my only argument is the dowel pins. My only argument the entire time was about the dowel pins. GtoRx7 stated both dowel pins and casting while dowel pins could possibly be a misunderstanding I added it to the review of the casting.
You bring up my post about the runner and I stating port them some. You stated now they can’t be port matched to fit the lims. However I was never speaking of matching anything or swapping anything. I saying the runners of FD are bettor big deal just port the S5 ones and they can be just as good if needed. This also means do port work to the runners and manifold if it concerns you that much. So yup more confusion as we both were focused on other parts of the motor and different techniques.
And then you post Kevin comes in however respected you want to image brings up totally bogus in a quite frankly rude arrogant and incompetently attempts to slander me about stuff I never even once posted about. As I said the entire time this has been based on the casting. I never once said the runners were the same or bolt up to S5, people assumed "to make an *** out of me and you" I said this. Then just repeats me but also disproves himself by saying the FD castings are far fatter then the FC. Then says a few fc irons floating around with the fat casting like FD. Well what one is it? I quote Dave Gibson to further clear the matter up as it is seeing people think I am wrong about the castings.
And as it was all my posts were based on the Iron dowel except our confused post on ports. And if you quote me to say something was different as Jacob did between s5 and s6 then it was wrong period. I never once talked or stated about the studs or port placement.
If you want to know my shop come stop buy. At least im not making **** in my garage and building motors with used parts. Then you got Aaron trying to play hot shot tuff guy ill teach you and ban me like I give a flying **** for misinformation when I have still yet to be misinforming. However you and I had a misunderstanding yet others have indeed posted misinformation on the castings. So then to you NOPR I apologies for adding your name into that post and you were correct on your statements.
Originally Posted by iceblue
If you want to know my shop come stop buy. At least im not making **** in my garage and building motors with used parts.
Thread
Thread Starter
Forum
Replies
Last Post
Megasquirt timing map and EGt ?? what do you guys think
immanuel__7
Megasquirt Forum
3
Aug 22, 2015 09:34 PM
KAL797
Test Area 51
0
Aug 11, 2015 03:47 PM




