ESmorz

I like it.

I like it a lot.

Now go low and wide and have a sex machine.

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pablo180

I'd have to take a look at the stock assembly first, but i'm fairly sure that moving the steering rack forward that much will reduce the available angle that the front wheels could turn because you are not increasing the amount of rack travel available to compensate. As a result, this means that you'd have to turn the steering wheel more to get the front wheel angle that you desire. Performance wise, i think it would make your steering characteristics slower/less sensitive to steering wheel input. (Good for high speed driving turns, bad for low speed driving like auto-x). To fix the sensitivity you could go with a smaller diameter steering wheel. To fix the available angle at the tires, you'd have to make a custom steering arm or go with a custom steering rack allowing more travel.

Word of caution, i'd make sure that your are not approaching 180 degrees between the tie rods and the steering arm on the uprights on both sides under a full lock condition. Reason i say is because if the angle approaches 180 degrees, you wont be able to get out of the locked position. I doubt that you are getting close to this, but it doesnt hurt to check.

One last thing i'd be careful of is to make sure that the vertical location of the steering rack does not change. This is super important under bump/droop conditions as you will get bumpsteer (toe in or out as the suspension travels up and down) if you deviate from the original design.

Best of luck on the swap.

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CmR333

hmmm we need to talk, suspension is next on the list after the engine starts and all that you just mentioned is all i have been thinking about for 2 months. i want to use the stock rack because its an electronic power assist unit just like an s2k has. i was contemplating using a manual rack from an fd but the tie rods are made specific to the 8 and i couldent find anything that was even close without going full custom. i havent gotten it up on a alignment rack yet to even try to see how bad everything is but im bothered at how much the toe changes when the car is rolling backwards. and its not so easy to push either. Im pretty sure buy now that there is nothing that an alighnment can fix. If anyone knows somebody that could help me out with some custom steering and suspension guys hit me up. Im just not that knowledgeable on steering geometry. i do know for a fact though that the steering rack is in the same position it was in just forwad 4"

Kanseidrift23

way to go man! that looks really good!

CmR333

so heres some goodies i just scored for super low awsome prices. i worked a deal and i now have a stainless top mount mani. and a 38mm tial wastegate. all is in perfect order and look pretty good after a few hours of polishing.

AznDrftr.

wow very different and nice. love it man,.

keep it up.

Walperstyle

all that room in there i'm supprised you didnt have an equal length, or at minimum some wierdo new manifold we've never seen before.

And spite the hurry everyone wants you to be in here, TAKE YOUR TIME!

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KA-T ORG-Function over Flush

liv2drift045

A lot of guys use/shops recommend SARD fuel pumps and fpr's over here... a few of my friends have them in there cars. I say go for it.

Nice build... i'll be watching

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cgallardo18

nice build man!

CmR333

ok so as of now im working on a fuel delivery solution. the stock rx8 fuel pump is ran by a pulse signal from the stock ecu, and i am not running the stock ecu as you all know. sooo my options are this.....try to figure out the max pressure pulse setting for the stock pump go to radioshack and try to get it working, replace the stock unit with a 265 lph sard pump with an aux pump to move fuel from one side of the tank to the pump side, or spend a ton of money on an aeromotive a1000 pump with a t pipe inlet from both sides of the tank. any suggestions or used aeromotive pumps would be cool.

CmR333

ok i havent done much of anything but research this week. Im a little on the broke side for now to lol. Im currently looking for a external pump that will feed a moderatly modded sr, so if you have one or know anyone hook me up please. ok im done babbleing stay tuned

koukikrisp

fuglin awesome build, patience of a saint!

i like everything you've done, great motor choice; simple, cheap, extremely potent with only a few power parts. no variable timing bullshit to have to work around when power adding

definitely, definitely, get that thing back up to snuff with handling, that's the rx-8's bread and butter

i have a feeling this thing could be beast, the handling of the rx-8 combined with the power potential of an sr. ill be keeping my eye on this.

CmR333

so heres an update. I just purchased a decent but still cheap t3/t4 turbo to bolt onto my top mount setup later on. I also will finally have the funds to order my last few lil parts i need like my fuel pump(aeromotive) and my drive shaft. last on the list is the brake proportioning valve to act as my distribution block since i dont have abs anymore. I also just got word of a sr20 national convention in savanah ga. in march and i intend on being there.

Propaganda

Jacksonville Sucks and SO DO YOU!!! j/k... I live in Jax, too!

So you're the guy in town I've been hearing about putting an SR20DET in an RX8. Nice to see you have your own build thread.


You do know we have a local board, right? Unless you're already on there and you have a different S/N. I'm LovEyDuBB over there

karim.f

good luck man on the swap ,i think u can help me alot with my brothers problem ,he has the same story u have ,this rx8 blow an engine and the engine costs so around 7k like u said and i searching for another alternative then the rotary engin ,because it isnt reliable a at all ,i live in lebanon beirut ,and lucky their is an SR20DET here in a junk yard.its really hard to find one here close to impossible.they say that it is a 2002 SR which means that it came from an s15.i dont know if it truly is from an s15.HOW CAN I KNOW IF IT IS AN S15 SR?AND BRO PLEASE CAN U TELL ME WHAT WERE THE HARDEST THING IN UR SWAP?THANKS

dookiedang

check for the notch top on top of the engine and the extra piece on the front of the engine. of course it gotta be black top. and check the coil pack. if its blue like the SplitFire then its the s15. i mean thats all i know how to tell if its an s15, i mean the dude could be bullshitting too. oh yea and the turbo.

karim.f

i just saw some pics of sr20s on the net of both s14 and s15 but i couldnt find a differnce at all.some s15 sr20 have have red tops.and bro i know the turbo r different between both engins but i cant know but just looking.

CmR333

i wish i could tell ya that dropping the sr in the 8 was easy , but it is far from that. it took months to get the subframe and steering geometry within tolerances. If you do decide to do this let me know and i will try to help. just keep in mind i built all my own parts and have done 97% of the work by myself and i have spent upwards of $7k on parts materials and what nots alone. you cant use hardly any of the stock mazda stuff. I.E gauges fuel pump driveshaft power steering and the list goes on.

punk138

died at 76k? what a jip!

my brothers FC still running strong at 120k!

this is a crazy build though! more pics...

GL

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yes we still roll fenders

CmR333

ill do more pics this weekend when im working on it again finally after 5 weeks

tehmonkay

You could've gotten a new housing a set of balanced FD rotors, a rebuild kit from rotary aviaton (seals do not break) a gt35r turbo kit and the fuel mods to go with it for less than 7k and still had good factory suspension geometry.

The final drive is alot higher than a stock nissan as well, so don't expect as good of fuel efficiency as you thought, that's the main reason the 8 isn't that much better than the 7s in that department, though NA people with standalones have seen 30+ highway mpg with the 4.1:1 final drive.

Good luck with the whole suspension thing.

brewster240

just currious, what gears do you think s-chassis come with?

cause you obviously dont know the right answer.

OTG Vinyl

I would've preferred a V8 swap with all that effort. However, a piston engine will always be better than a Wankel, regardless of it's layout. Therefore, I commend you for taking on such a task for a car that so desperately needed a piston-based engine!

tehmonkay

I just went and looked

The ultimate final drive gear ratio thread.: 240SX Technical Forum: Nissan Forums / Infiniti Forums - NICOclub

You'd be suprised how much information you can find about rotaries if you do the same.

mr_240sx

wow great build..... cant wait to see this bad boy finished.

LeftNutOfGowd

PIC PIC PIC I wanna see some updated PICS

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CmR333

the final drive in the rx8 is a 4.33 so yeah its not going to be drawn out and efficent by any means but even still the gas milage will be better than it was. and yes i could have spent money on another rotary but that would be tottaly against what im trying to do wich is build a reliable car for daily driving thats faster than it was. anyone that knows anything about rotaries knows that reliability isnt as good as a piston engine. and im not bashing wankels because i plan on building a rotary powered car one of these days but it will not be a dd.

brewster240

you missed what i was asking.

i know what the ratios are, i was asking if you did, because your statement was pretty gay.

and you did it again.

CmR333

agreed... be sure before you jump in

CmR333

WELL THE AEROMOTIVE FUEL PUMP WILL BE HERE FRIDAY! WOO HOO!! i also will be getting my proportioning valve for the brakes and then i can start moving forward again. just out of curiosity will this bad ass pump kill my stock fpr?