Ill be at Island friday sporting a new BR race fmic. Hopefully that will be one less bottleneck, as the stock fmic is finnaly going bye bye.

 

Congrats on those new times!!!!.You going to Etown this weekend?

 

no bad

 

I think Im going to hit Etown on friday night for T&T IF, big IF, after installing the fmic today, I see a significant gain.

Im going to take the car out this afternoon, and measure ambient temp. Let the car sit and idle till AIT stabilizes to simulate sitting in staging lanes. AIT seems to always sit at 90-94*F on the starting line. Ill run the car on the street from launch to top of 3rd gear, as well as do some 2500rpm to 8000rpm 2nd and 3rd gear pulls.

Then go back to shop, install the fmic, and go back out and repeat the test wihtout touching boost controller at first. I want to find out what effect the fmic had on boost setting, then I will adjust boost to match the stock fmic runs, and repeat the 1/4 mile simulation and wot pulls.

Ill check out the logs, if the AIT change and boost pressure change was significant enough to show a WHP and WTQ gain in the logger, I will trek down to Etown for 3 runs friday night.

If the FMIC only shows 10whp-15WHP gains, It's not worth track testing 2 hours away as I know it will only go 1 to 2mph faster...not significant enough for me to make the trip.

If it was Island DRagway, that is 10 minutes from home, I got anytime, even if the car isn't going to improve significantly and I have nothing to test. But I hate driving all way to Etown in rush hour traffic, leaving work early, getting home at midnight, and eating all the gas..only to run 11.4 @ 121. If the car picks up 20-30whp or something big like that, I will make the drie to etown.

BTW, sat-sun NHRA event, is not the place to do testing/tuning with new parts. you get 3 qualifier runs on 2 days, then eliminations. all in different temps/track conditions. And it's $65 a day to run.

 

Let us know ASAP how the FMIC worked out and if you had to add fuel or whatever...

 

I put the BR Race FMIC on today. I had to make some minor adjustments to the IC pipes, weld on a new section, and replace one bend...no biggie, install was done in less than an hour even with tig welding and tapping for the AIT sensor.

On to the preliminary results:

STOCK FMIC at 23.5psi boost ~75*-77*F ambient temp.
3rd gear WOT pull from 3000rpm to 8000rpm. Temp starts at 76.4*F and rises to 104.0*F at 8000rpm in 3rd gear. Temp gain of about 27.5*F on a single gear pull.

Launching from a standstilll ait is 78.0*F and rises to over 105.8*F by 7000rpm in 3rd. Temp gain of 27.8*F on a drag simulation of 1-2-3 gears.

BR Race FMIC at same 23.5psi boost ~70*-72* ambient temp.
3rd gear WOT pull from 3000rpm to 8000rpm. Temp starts at 71.6*F and rise to 71.6*F!!
Temp gain on the single gear pull is ZIP, NADA, NOTHING. I repeatedly tested this, and even went out to make sure the sensor was plugged in and in the ic pipe, as it was staggering.

launcing from a standstill AIT is 69.8*F and rises to 73.4*F at 7000rpm in 3rd.
Temp gain of 3.6*F on a drag simulation of 1-2-3 gears.


On an actual dragrace run last week with the stock fmic, starting line temps were 89.6*F, were 120.2*F at 7000rpm in 3rd gear, and 126.8*F at 7600rpm in 4th at the end of 1/4mile. Ambient temp was about 78*F, but sitting in staging raises the starting temp up to 89.6. This was at a slightly higher boost level of 24.5psi. It's still pretty comparable, as one lb of boost doesn't even change the temp by 1 or 2*. From start to finish in 4 gears with the stock fmic, temp gain is 30.6*F

Im flat out amazed at the temp rise now, it's almost non existant.

on a side note, I didn't touch the hallman evolution MBC during the test, boost was exactly 23.5psi +,- .5psi with both intercoolers without adjustment. I know alot of people say they see a big boost change going to a fmic upgrade, I didn't see squat.

At 23.5psi with the stock fmic, the best WHP the ems logger recorded was 393whp.
at the same boost with the BR Race FMIC, the best WHP was 421whp.
WHP when overlayed is consistently 15 to 20hp better with the new FMIC core at the same boost level. Much of the gain seems to be at the higher rpm, when the stock fmic core's AIT was rising up. Granted this is comparing a single gear pull. At the dragstrip the power gain in 4th gear will be even more, as the stock fmic was totally heatsoaked and temps are over 120*F the whole gear. with the curve of the BRFMIC, I belive actual AIT would be below 80*F all of 4th gear. 40*F is BIG.

Once I have racegas in the tank, I will run 30psi of boost and see what the temp change is then. Stock FMIC at 30psi was Start 91.4*F, 7000 3rd: 127.4*F, 138.2*F end of 4th.

 

Good post. Are you gonna take it out for a test n tune before adding any thing else?

 

Im still up in the air as for going to englishtown on friday to test and tune. I would like to know what mph gain and WHP change it makes at 30psi in 4th gear where the stock fmic was putting out almost 140*F AIT. I bet the new fmic AIT is under 90*F under the same conditions. 50* could be 40hp or so. I refuse to run the car that fast on the street just to test, so I got to get to the track.

I don't want to currupt the data by adding the turbine housing next week, then Ill never get to know roughly what mph the fmic was worth alone.

 

Yeah i hear you, it is a pain in the *** to load everything up and fight the traffic....But its worth it for 40-50 hp.....I still have the buschur street core on my 1G. as soon as i upgrade i will be reaping these same benifits...i already upgraded my evo with a 12x 24x 3.5 core.

 

Can anyone give me a guestimate of what I will run I am 310whp on pump gas. I have added a Injen inercooler, since I dynoed at 310. Your info would be greatly appreciated.

 

I am betting it is the housing, I made a bunch of passes yesterday in the 11.60-11.50s on pump, alky and 26 psi, best was a 11.54 at 121.6. Interesting part was putting race gas in and raising the boost to 28 did NOTHING, I even leaned (11.7 afr and 890 egt) her out a little more (timing looked good and no knock) and still could not get to 122mph. I am betting it the housing! Let us know how the new housing works b/c I am going to build a 2.3L for the car this winter and still wondering about a 35r instead of Daves new 30r.

 

I went to the track friday with the FP turbine housing. Results were inconclusive becuae I had a major fuel delivery problem. Either the fuel filter got plugged up, or my walbro pump is dying. there is a thread in drag racing...crappy night at track. that has the info.

about the FP housing. It seems to be worth in the 20-30whp range on pumpgas at 24psi. I did make 2 passes on pumpgas at 24psi AFTER the fuel pump died..trying to diagnose the problem. 12.0 @ 120 and 11.9 @ 119 both with spinning tires on launch. both with AFR's in the 13's, missfiring from being too lean, and ign tming pulled from knock.

The turbine housing was a significant improvement, I dont' know if it was worth $600

 

Yeah $600 is steep...but the test was inconclusive. We will have to wait on your next trip to the strip. I hope it is the fuel pump, thats an easy fix........

 

thats not very exciting. good luck on diagnosing the problem hopefully its as easy as swapping out the fuel pump or the fuel filter.

 

I am pulling the engine in the next week or so to build a 2.3 stroker and am not sure what turbo to go with. I could upgrade the 30r or just go with the new 35r set-up from Dave. I am on 264's now and thinking of the 280's, I think with the stage3 head I have it would be a pretty quick combo. Are you using the internal or external wg? Dave was talking about an external wg T4 based tubine, is that what you are running?