Non-turbo 428rwhp FD build up and history
That is a age old question around here. So I decided to do more testing of a full p-port motor with all the tricks side by side with this one and find out
Yeah years ago we tried 87, 89, 91 and 93. Lower octane used to always make more power, until the engine reached better development. Then the higher octane was a benefit.
Yeah years ago we tried 87, 89, 91 and 93. Lower octane used to always make more power, until the engine reached better development. Then the higher octane was a benefit.BTW, since I didn't mention before, I just have to say that damn it's nice to see someone actually pushing things in a scientificish way *and* documenting them *and* sharing that. I mean okay, obviously you're not telling us all your secrets, duh, but this is rather more informative than the drag guys who always seem to end up really really cagey on what they're accomplishing, much less how (again, I get why, but it's less fun to read)
Interesting, just thought I'd ask. I won't even bring up weird crap like VP MR12 or the like, even if that would be fun too. And look forwards to see what further results come out of a full p-port too; will that be here or some other thread?.
BTW, since I didn't mention before, I just have to say that damn it's nice to see someone actually pushing things in a scientificish way *and* documenting them *and* sharing that. I mean okay, obviously you're not telling us all your secrets, duh, but this is rather more informative than the drag guys who always seem to end up really really cagey on what they're accomplishing, much less how (again, I get why, but it's less fun to read)
BTW, since I didn't mention before, I just have to say that damn it's nice to see someone actually pushing things in a scientificish way *and* documenting them *and* sharing that. I mean okay, obviously you're not telling us all your secrets, duh, but this is rather more informative than the drag guys who always seem to end up really really cagey on what they're accomplishing, much less how (again, I get why, but it's less fun to read)
back on topic, is the full PP going to have slide TBs too? to keep the comparisons similar? also what sortr of size/shape PPs are you going to use? 50,55,62mm? endurance style D shape PP or the other style?
Interesting, just thought I'd ask. I won't even bring up weird crap like VP MR12 or the like, even if that would be fun too. And look forwards to see what further results come out of a full p-port too; will that be here or some other thread?.
BTW, since I didn't mention before, I just have to say that damn it's nice to see someone actually pushing things in a scientificish way *and* documenting them *and* sharing that. I mean okay, obviously you're not telling us all your secrets, duh, but this is rather more informative than the drag guys who always seem to end up really really cagey on what they're accomplishing, much less how (again, I get why, but it's less fun to read)
BTW, since I didn't mention before, I just have to say that damn it's nice to see someone actually pushing things in a scientificish way *and* documenting them *and* sharing that. I mean okay, obviously you're not telling us all your secrets, duh, but this is rather more informative than the drag guys who always seem to end up really really cagey on what they're accomplishing, much less how (again, I get why, but it's less fun to read)
So there will be more to look at (maybe slightly confusing at first) but in the end it will all make sense! This thread will continue to show progression, and overview of everything related. New threads also will be started to showcase the new setups and engines. Thanks for being a fan of our work and methods. A long time ago it would infuriate me with how nothing was shown from top dogs. As you stated we all have some secrets, but at least show a dyno chart right? The world wont end if some info is posted! lol.i agree that this is probably the most informative thread going, all the info given is ten fold to that of other threads. a lot of other people dont share what porting they have or even put pictures up, its not as if most things havent been done all ready is it? over here in the UK if you see a picture of someones porting it is as rare as rocking horse ****.
back on topic, is the full PP going to have slide TBs too? to keep the comparisons similar? also what sortr of size/shape PPs are you going to use? 50,55,62mm? endurance style D shape PP or the other style?
back on topic, is the full PP going to have slide TBs too? to keep the comparisons similar? also what sortr of size/shape PPs are you going to use? 50,55,62mm? endurance style D shape PP or the other style?

The full P-port will have slide throttles, external injectors, same header design etc. It may get an unfair advantage for a little while however, because its a clean slate build. So every detail can be planned ahead of time based off what we learned already. Should be interesting to see the results though.
The porting shape is experimental at the moment and has to stay in area 51 for a little while. Size at housing entrance is 54mm, and is straight shot it. Not angled.
More to come soon hopefully!
Oh, another one - ever play with constant area exhaust port stuff? There's been various threads; suffice to say, new inserts made kept at the sameish area as the port in the housing instead of expanding up as quickly as the stock inserts do. I have a PPort with some homebrew sleeves I did to test the idea, but ran into some issues with the car it was in and never made it to a dyno... and the header I made was not so great quality anyway... and it's not like I have a baseline for comparison... and...
Oh, another one - ever play with constant area exhaust port stuff? There's been various threads; suffice to say, new inserts made kept at the sameish area as the port in the housing instead of expanding up as quickly as the stock inserts do. I have a PPort with some homebrew sleeves I did to test the idea, but ran into some issues with the car it was in and never made it to a dyno... and the header I made was not so great quality anyway... and it's not like I have a baseline for comparison... and... 

Not sure there is an advantage. Real power dyno charts of full P-ports are so rare its hard to get solid answers. Just going on gut instincts really!
Problem is I'm getting married in October, so even though the wife-to-be is perfectly willing to let me play with this stuff and spend money on it in general, doing so this year is kind of... a hard sell, let's say.
Sooner or later! Part of the issue is I don't have a chassis to stick it in anymore; loaned it to my dad for one race, but then he put that car into a tire barrier.
13B, and it's one of those things where the more I think about it, the more iffy I am on it. Did a ghetto static balance job which I'm a lot more iffy on having seen the results of having Prather do a balanced rotating assembly for another motor, so it may come apart again... even if it doesn't, I really should fix the header, or do a dyno header I can change lengths on... and it needs either an IDA or an injection setup, as the IDA we had got sold. Injection setup would be better, as friends local to us have a homebuilt engine dyno, but carbs on it are a lot more iffy. And I'm half pondering going to carbon seals instead of OEM steel ones.
Problem is I'm getting married in October, so even though the wife-to-be is perfectly willing to let me play with this stuff and spend money on it in general, doing so this year is kind of... a hard sell, let's say.
Sooner or later! Part of the issue is I don't have a chassis to stick it in anymore; loaned it to my dad for one race, but then he put that car into a tire barrier.
Problem is I'm getting married in October, so even though the wife-to-be is perfectly willing to let me play with this stuff and spend money on it in general, doing so this year is kind of... a hard sell, let's say.
Sooner or later! Part of the issue is I don't have a chassis to stick it in anymore; loaned it to my dad for one race, but then he put that car into a tire barrier.
Doing it 'right now', I've found, is generally a lot more expensive than doing it 'right', you know? And for that matter, losing parts due to stupid mistakes that could have been prevented with less haste is a good way to lose enthusiasm and get burned out. So, way I think of it, I don't have the budget to be impatient. The engine's not going anywhere, nor is my machine shop. If I rushed I could possibly get the thing on an engine dyno this year, but if I don't rush I can probably get it in a proper chassis in not too long, which would be a lot more fun.
Wish I could play with stuff like this for a living; the day job takes away a lot of time from playing with cars. On the other hand, how many guys don't have the tools or mechanical aptitude to make this stuff at all?
Back more on topic, found a pic of the exhaust sleeve dealies I did; http://lolinter.net/KJ_carstuff/pport/DSCF0576.jpg I think if I were to do it again I'd try this castable ceramic stuff I found around a 3d printed runner... albeit mostly because I like printing stuff.
Wish I could play with stuff like this for a living; the day job takes away a lot of time from playing with cars. On the other hand, how many guys don't have the tools or mechanical aptitude to make this stuff at all?
Back more on topic, found a pic of the exhaust sleeve dealies I did; http://lolinter.net/KJ_carstuff/pport/DSCF0576.jpg I think if I were to do it again I'd try this castable ceramic stuff I found around a 3d printed runner... albeit mostly because I like printing stuff.
Doing it 'right now', I've found, is generally a lot more expensive than doing it 'right', you know? And for that matter, losing parts due to stupid mistakes that could have been prevented with less haste is a good way to lose enthusiasm and get burned out. So, way I think of it, I don't have the budget to be impatient. The engine's not going anywhere, nor is my machine shop. If I rushed I could possibly get the thing on an engine dyno this year, but if I don't rush I can probably get it in a proper chassis in not too long, which would be a lot more fun.
Wish I could play with stuff like this for a living; the day job takes away a lot of time from playing with cars. On the other hand, how many guys don't have the tools or mechanical aptitude to make this stuff at all?
Back more on topic, found a pic of the exhaust sleeve dealies I did; http://lolinter.net/KJ_carstuff/pport/DSCF0576.jpg I think if I were to do it again I'd try this castable ceramic stuff I found around a 3d printed runner... albeit mostly because I like printing stuff.
Wish I could play with stuff like this for a living; the day job takes away a lot of time from playing with cars. On the other hand, how many guys don't have the tools or mechanical aptitude to make this stuff at all?
Back more on topic, found a pic of the exhaust sleeve dealies I did; http://lolinter.net/KJ_carstuff/pport/DSCF0576.jpg I think if I were to do it again I'd try this castable ceramic stuff I found around a 3d printed runner... albeit mostly because I like printing stuff.

^Nice sleeve. When I built my 20b headers back in dec 2008, I built mine into the back side of the header flange themselves. So I have no sleeves at all. It's all one piece. I'm like you as I have no idea if it`s an improvement or not.
Over the winter my RX was featured in a smaller magizine called "S3". A lot of good photos came out of it, so figured I would post a few. The last one with me walking away from the car wasnt planned. I didnt even know they were taking pics right then! Haha




Thanks! No they don't allow it, but I do it once in a while anyway. Only been pulled over once at night because my projectors aren't technically headlights. His face expression was priceless looking at the car and then said "I am not sure how much of this car is legal....... and your headlights aren't working. Is the wiring bad on them?" I just agreed and told him our shop was around the corner to fix it.
Let me go on my way luckily
Let me go on my way luckily
Hahaha, what a reasonable police officer, and even more so seen as they carry guns. If that was me getting pulled I would been arrested and my car impounded. Saying that though I did once have a van full of police officers ask to race them in my old FD
that was funny.
How far off are we from seeing updates?
that was funny.How far off are we from seeing updates?
Thanks! No they don't allow it, but I do it once in a while anyway. Only been pulled over once at night because my projectors aren't technically headlights. His face expression was priceless looking at the car and then said "I am not sure how much of this car is legal....... and your headlights aren't working. Is the wiring bad on them?" I just agreed and told him our shop was around the corner to fix it.
Let me go on my way luckily
Let me go on my way luckily

Polished the e-shaft

Polished the rotors as well

Triple spark plugs
on both engines. Might notice the 3-rotor has changed colors... that is because its going into the Nissan now!


The Full p-port engine next to the semi p-port. Semi p-ports looks so small!

Polished the rotors as well

Triple spark plugs
on both engines. Might notice the 3-rotor has changed colors... that is because its going into the Nissan now!

The Full p-port engine next to the semi p-port. Semi p-ports looks so small!
Last edited by GtoRx7.; Jun 23, 2012 at 11:05 PM.



