Jump to content
SAU Community

Intercooler install and problems

JaFF

By JaFF,
in Engines & Forced Induction

 Share

Recommended Posts

JaFF Proficient

JaFF

Posted
Posted

Hey all,

I have installed my FMIC but unfortunately there was one side-effect I hadn't planned on.

I use the standard air filter box and now a FMIC pipe is blocking its path and the intake from front of bonnet no longer fits.

Now when driving the boost comes on strong at 3500 and hold firm but there is like a soft/flat spot in mid to high revs. in second i seem to only be able to pull 90kms instead of the 100 i used to pull. :P

This soft/flat spot is there in all gears.

I'm hoping that the problem is the air filternow not getting enough cool air.

I was hoping for some clarification on this.

anyway if it is that I will get a pod filter setup w/ partition and make up a feed from the front left bumper as I now have one of the standard intercooler holes free for intake.

Please say this is the problem!!

As i said, it' doesn't seem to be a boost problem. It is boosting to 8 psi and holding firm even through the flat spots.

thanks for any help/opinions

Link to comment
https://www.sau.com.au/forums/topic/46069-intercooler-install-and-problems/
Share on other sites
PTR33 Proficient

PTR33

Posted
Posted

two words...

Standard Computer.

The more mods you do, the more airflow the engine gets, the bigger that flat spot gets.

You can see it on a dyno graph. It's where the AFR plummets from about 12:1 down to 10:1

r33fred Explorer

r33fred

Posted
Posted

[ Yeah great, I've got the same problem... put in a FM cooler with 63mm pipes put a free flowing gtr finer air filter in with extra breather pipe into the stock air box, and upgraded the exhaust by putting free flow resonators in and I started getting this flat spot around the same speed. Havent set up my new boost controller yet so its still running stock psi of 6 or 7. What did you fit to fixe the problem??

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      R33 GTST Axles

      By GTSBoy · Posted

      There are several aftermarket options available, from not-too-painful moneyhttps://justjap.com/collections/driveshafts-bearings/products/d-max-reinforced-replacement-rear-driveshaft-set-fits-nissan-s13-s14-s15-r32-r33-r34-c35 and  https://justjap.com/products/crank-motorsport-billet-rear-axles-fits-nissan-skyline-r33-gts-t-r34-gt-t?srsltid=AfmBOorQk4xkGUa98kO7v2ePLUiNt-HRrM2AwWNw9mbSIVE1ujBVwY__, all the way up to The Driveshaft Shop https://driveshaftshop.com/skyline-cv-axles/
    • jdniss
      Forced Performance Hta Turbos

      By jdniss · Posted

      Yeah based on old XRC5964S specs, it looks to be roughly GTX3576R sized? But this 5964S compressor will flow 90lb airflow somewhat similar to the compressors in both the GTX3584RS or G35-1050.. I fully expected the 0.64 rear A/R to choke up top - seems way too small from typical convention - but these are seemingly beneficial over the prior 0.82 results.. Be interesting to see if he comments on the EFR question in that thread - he mentioned in a prior video that BW EFR's were the "cats pajamas 10 years ago", but by the sounds of things all his kits have been using Xona for quite a while now.
    • thozza
      Intro/R33 owner

      By thozza · Posted

      Yeah it’s still got the oem manual gearbox and clutch, only kinda mods are a blow off valve, coil overs, and a aftermarket intercooler. Also had it for about 2 months now with a lovely midnight purple paint on it.
    • Lithium
      Forced Performance Hta Turbos

      By Lithium · Posted

      Yeeeppp, been following a lot of the testing on the latest Xona stuff and there are some mental results.  He also went over 1000hp @ 4 hubs on his Mainline with a XRE6364S (63mm) which was also well into the 20psi range before 4000rpm on a 2.5. Crazy stuff. Fwiw the XRE5964S is basically the modern equivalent of their old HTA3582 - would drive nicely enough on an RB25 or 26, but proven capable of a huge amount of power if you want to spicy with rpm tho even at sane boost levels will make stout numbers 
    • tidi0x
      R33 GTST Axles

      By tidi0x · Posted

      The axels in my R33 seem tired, and have a bit of play in them. I cannot find any new of course, not interested in buying used, but I am looking to see if anyone can identify some cross compatible axles. In the states I have seen suggested for S chassis the J30 axles, however for the skyline (as best I can tell) the lengths are about an inch off (2.5cm) on both sides. R33 my measure L 22" R 24.5" GPT L 22.5" 24.25" J30 L 23.5" 25.5"  so shaft length is probably an inch wider. Not sure if someone has another still remanufactured option besides the J30. I figured worst case I can buy a pair tear them down and swap the center shaft. My other option was reaching out to GSP to see if they cannot piece together a set, since the axle stubs are still manufactured, I wouldn't think it be that hard to find a shaft or make a shaft work. 
×
×
  • Create New...