tuning talk yuck LOL if i was tuning would be interesting for sure. i want to see data confirmation to see if this Br intercooler was really worth the coin. so far its iffy at best but again you have not really dived into it yet

 

wow- your car spools the black insanely well.

once i get my double pumper installed, i will be able to turn up the wick & see what the black nasty can do.

i do all my tuning in 3rd gear as well......however, i dont get the same spool as you...not even close.....however, she makes plenty of power @ 24 psi.....

according to your data, the perrin was leaner with similar boost levels between ~5k-7k, which suggest the perrin is flowing more air / dense air.....any idea what ambient temps were when you were testing?

google weather underground if you need specific data for your area. it's an awesome website for recorded weather info....this may clear things up.

i have an old turbo xs fmic....my fmic's internal fins look similar to the garrett fins.... i did a compare a long time ago & I was able to calculate air density from my aem logged data using this equation: P/RT pressure(kpa/ideal gas constant = 0.287 * temp "K"

P/RT data suggested i picked up power, the fact that top speed was faster with more weight in the car + i had lower inlet temps @ the end of a 1st-4th pull, measured after the iac, should have confirmed / substantiated gains in performance......im not saying that the perrin or buschur or anything else is better, im just saying to review your data & let data show what it see's......1/4 mile speed is also great data as well.

Thanks for your contributions to this thread.

 

I dont know why your spools so slow like you say. Yes perrin was leaner.. which really confused me i had to throw more fuel to the garrett 3.8" core.. you would think the opposite...

Also theres 3-4psi pressure drop minimum vs the perrin and garrett 3.8" core.. which makes me believe the garrett is to big and the turbo cant keep up with it so the boost drops uptop so much.. this is killing power.. heres garrett vs perrin.. look at the green line which is perrin.. holding boost way better.



my zipcodes 17552

 

I wonder if the bigger IC is actually too big and cousing the IAT to drop too low and not allowing complete or as efficient combustion on e85. I know some people run hot pipes with e85 and see no more knock and no loss in power. E85 seems to be less sensitive to hot intake air temps and I know my car acts a little silly when the air is too cold outside. Maybe it doesnt atomize properly.

 

Just to confirm we are talking about the Buscur race, not the BFIC, right

 

buschur race yes. 3.8" garrett core.. it seems its doing much better today though. Its 77F and im adjusting the tune on my car here are the current numbers at 40psi spike tapper to 32psi




The core seems to be holding ok now its doing consistent at:

Data from 3.csv:




MBT is around 3-4* i haven't decided yet.. I may keep it at 3* .. i get some knock at 4*. More torque at 4* however.

The car feels like an animal now.. it is relentless uptop it wont stop pulling. It needs to go back on the dyno to confirm everything is within MBT and then i will be happy with it.. Looks like the Buschur core is staying on the car.. I was gonna test it against the Perrin but thats almost stupid at this point.

Tune is not done yet, i can still get another 20-30whp out of it at least.. torque wise im not sure what i can do.. i think the a/f plays a huge roll in torque manipulation when it comes to E85. As soon as I leaned it out more down there i lost the kick feeling, it transformed into a smooth hard pull vs a jerking kick type feeling.

If I get bored i might do a back to back comparison with the perrin, but im pretty sure the buschur core will outperform the perrin even with the pressure drop.. its cooling the air much better.

so far im happy with the numbers considering its not
using a big runner intake manifold, which a 2.3L will
gain the most from.. and its got somewhat mild cams..
kelford 272.. its still on stock MAS, which is another 30whp

So just a magnus v5 or ams f1i and SD and i should see another
60whp ontop of what i got now, not counting how restrictive
the cobb is, since it has a resonator.


few more tweaks

 

^ e85 GURU......Keep up the great work ! ! !

 

man almost close to mikeys numbers. Guezz e85 is showing its a$$ to me lol. I could use that extra 100whp from my 93oct only state LOL. least i have that could be worse and only have 91oct

 

tscompusa-

in post #94, your data shows you making 20.99psi @ 3656rpm

but in post #111, your making ~13psi @ 3687rpm?

what changed?

 

I got 93oct in the car now. I was running 30psi with no knock from pa to ohio on 93oct with a 3minute tune in a redneck gas station LOL. was getting 450-500 miles to the tank vs the 170 on e85.. e85 is absolutely garbage for long trips.

clutch started slipping in 5th gear also, maybe time for a triple :/

AFR and timing. Depends on the starting point of the pull.

thanks

 

It is so bizarre to me that you are running it so rich during spool-up. I guess the low timing with the rich fuel ratio raises the EGTs quick and gets the turbo going quickly. I need to go back to tooning school!

 

try 12.8-13 at spool until 5psi and then richen it up.. it will spool faster then you ever felt it before.

 

This is regarding E85 correct, not 93?

Great build btw. It's nice to see the numbers slowly creep up.

-Acree

 

E85. Ya, its awesome seeing it transform as i change little things.. Im gonna try for 20* uptop as soon as my sunburn goes away here in the next few days.. I seen a 20whp gain from 18 to 19 so if i get another 20whp gain ill be siked. I cant figure out what mbt is for peak boost area, i know its either 3 or 4 but different logs are saying different things.. this is where i think a real dyno comes into play.

 

AFR is probably going to be a factor in that. But, I agree, it may be hard to tell exactly with these virtual dyno calcs.