I feel like I'm either missing something, or went too far
 

Okay, getting ready to put it all back together after ordering a few more things, and I've searched but still am unsure if I am going overboard, or missing a supporting mod somewhere that would be crucial for my setup.

This is what I have so far...

*Mild street port
Power FC w/ commander
DP, mid and catback
*aftermarket smic
*aftermarket bov
99 turbos -will run 12lbs boost
koyo rad
alum ast
turbo simplification
boost controler and gauge
intake




So, my question, is there any supporting mods I need to address with this setup? I was considering going with 1600 secondaries and just ordering the rx7store extreme fuel kit and also the kks twin power and nipendenso fuel pump. The fuel pump is a for sure thing.

Is this more than what I need, or am I missing a crucial upgrade somewhere? I've read alot of mixed opinions on the fuel system and tried comparing others setups to mine, but still unsure what direction to go from here before putting it all back together. I'd rather do it all right the first time instead of changing this and that after I put the motor back in.

My injector duty prior to this on stock setup was pushing 90%, which was running on stock ports with the stock bov and IC (if those even make a difference) so that made me wonder about my fuel setup. I just don't want to run out of fuel for obvious reasons, and I will eventually be going with BNR stage 3's in the future, so I also thought that maybe getting it all setup to handle those right now might make it easier later to make the switch.


I know I know....damn newbs. :rlaugh:

Simplest thing is to run 850s in the primary rail, which will need to be modded for fitment. I'd recommend four new 850s, if you want to do it right, at a minimum get them cleaned and flowtested. I have some freshly cleaned 850s coming in if you need them. In my opinion, 1680s with the rail, regulator, and lines is a pain in the ass which isnt really necessary with 99 twins at 12 psi. BNRs are a different story though :)

Awesome, that definitely eased my mind and set me in the right direction!

I always look forward to your posts, fwiw....very informative, easy to follow and I know I'm not getting a half baked idea. Thanks again :icon_tup:

Oh, and I think I will just get new injectors, but thanks for the offer. :)

Like Rich said, run the 850s, and get a Supra TT fuel pump. I'm assuming you already have an upgraded clutch? B/c if you don't, you'll need one soon ;) If you're gonna change out the clutch, make sure to change out all the associated parts while you're at it (see here: http://www.fdnewbieimports.com/Backup/product.php?n=43) so you won't have to go back in there again. And also consider a light flywheel. The difference is night and day!

Also, if you're gonna run the 99spec turbos, might as well get some fun out of 'em. 15psi is the max you wanna push 'em, plus that's the max you wanna run on stock fuel. So I'd say get tuned for 13 or 14 psi, and enjoy. I know my car was a freakin BEAST at 13 psi (creepin up to 15 psi hehe). On that note, w/ a MP, you may need to port the WG so you don't overboost and need a new motor ;) See if you're holding boost well or not first.

K...one more. If you up the boost as mentioned above, and you have the adequate fuel, you'll prob end up w/ a lot of breakup up top. IF so, then you'll want to get an HKS Twin Power. Do NOT get one unless you ALREADY have breakup. It won't do a darn thing for ya if you install it w/o needing it, ya feel me? ;) And with it you can run better plugs (9s all around). May not last as long, but they'll make better power while they last.

Oh and (shameless plug) of course, I can help ya get any of the parts you need :D

~Ramy
FDNewbie Imports

It Wouldn't Hurt To Invest In An Msd For Amplification Eventually The Coils Will Go (they All Do Or Atleast All Mine Did)and When They Do With A 6a Or 6al You'll Know And Can Upgrade To Blaster 9000 Coils. Or Not Just An Idea ,if It Were My Car I Wouldn't Start It Without Upgraded Ignition

That's good advice in general, but FDs have very stout stock ignition systems. I've seen an FD dyno 470 rwhp on stock ignition, only change being 10 series race spark plugs.

I dunno Rich...

I agree that 4-850's is definitely a good way to go. However, I think the SIMPLEST route is to keep the stock primaries and bore the secondaries to 1200. This basically gives the same amount of total fuel, but will require less tuning and adjustment of the low-rpm/idle areas of the map.

Advantages and disadvantages to both methods I suppose...

-Rob

Hey Rob,

that's true, and while I see your point, I know that people have had problems with the bored-out 1200s and 1300s in the past. I personally ran 1300cc sec's (bored from 850) for many years with no problems, but there were a bunch of people that had them fail. I suppose if someone is willing to take the risk, this would be indeed be the simplest way.

I like the four 850 route because you can buy brand new injectors, and you know exactly what you're getting.

Rich and Rob, here I got one for ya.

- Run the 850s as primaries
- Run 1200s as secondaries.

Rich, the failures you've mentioned (which I've also mentioned many a time) have never been 100% fully disclosed as to the exact cause, but nonetheless, the important point is they were all associated w/ stockers bored out to 1300s. I have yet to hear of 1200s failing.

rotorrx04, thanks for your $0.02, but it's prob. best to get a bit more familiar w/ this individual car before throwing things on it. The FD is very unique in many ways, including what it does & doesn't need, and how it responds to various mods. Assuming based on what works on other cars can be very very expensive I assure ya ;)

~Ramy

Someone needs to make my mind up on this one. :rlaugh:

Ramy might have stumbled onto something here :D

If the 1200s are indeed reliable, then 850s/1200s and a supra pump will support low 400 rwhp on the BNRs. I ran a similar setup for years.

:wave: :angel:

So what would deem a 1200 injector, or any injector, as "reliable" ? Would it be something as simple as just putting in new injectors as opposed to cleaned and flow tested used injectors, or is there more to it than that? Or is a 1200 injector just a bored out 850, because I can't seem to find any 1200's on anyone's websites. I would rather spend the money and do it right, then half ass it and pay for it later, so whatever needs to be done, it will be done the right way, because the wrong way is how the motor went south in the first place.

Thanks for all the effort into your replies everyone!! I may actually get this monster back on the road and in good order someday soon :ylsuper:

a 1200 is a bored out stock 850cc side feed secondary. You can always buy a pair of brand new 850cc side feeds, and send them to RC eng to be bored out, assuming they still perform the service.

I'm running a KG parts ultimate fuel system, with 870cc top feed prims, 1680cc top feed secs, aeromotive fpr, all engine bay lines s/s, and an Apex'i BNR33 (skyline) fuel pump. If you want to build the system for more than the BNR turbos can throw at them, this is probably your best bet.

1300cc secondaries in mine for many years fwiw. I forget what fuel pump i'm using...

I did see a set of bored out 1300s get stuck at full open on a friend's car (remember the silver/gray FD at that Long Island dyno Rich?). However, I don't know the history of those injectors (like age and whether they were dropped or some other installation issue etc).

Cheers.

What made you go with a SMIC?

Its a new xs power smic, just didnt feel that I needed much more running 99 twins. When I go BNR, it will be replaced.

So what kit is that Rich? Kit "E" from kgparts? And it says it doesn't come with the lines, are these just the ss lines that they are refering to that are not part of the package?

Have you thought about proper ducting for your new SMIC?

This is something I planned to look into before finishing everything up, but haven't done yet.

Why, what do you have in mind? :)

Would be a good idea to port the wastegate to combat boost creep.

That is undoubtedly going to happen. I was creeping up to 14psi a couple times (that I noticed anyway) so that will be addressed. I was going to remove the midpipe and run a highflow cat, but decided to leave it on.

I just bought a modified primary rail to accept 850's, so that's the route I am going to take at this point with the nipendenso pump.

I'm going with the Greddy SMIC and Pettie I/C Duct

Thats what I have found to be the best setup for me, I didn't want to have a metal duct (due to heat soak)