week-end ride fiero 2.8 v6 custom exhaust (Page 1/2)
zobari APR 05, 04:15 PM
Hi,

Here is some videos and pics when I've drove my 1988 fiero gt 2.8 v6 last weekend

Video 1

Video 2

Video 3















[This message has been edited by zobari (edited 04-05-2021).]

Patrick APR 05, 05:56 PM

Looks and sounds great!

Tell your passenger if they ever shoot vertical video (#3) again that they're walking home.
zobari APR 05, 06:41 PM

quote
Originally posted by Patrick:


Looks and sounds great!

Tell your passenger if they ever shoot vertical video (#3) again that they're walking home.




LOL
Thanks for your comment
Notorio APR 05, 08:21 PM
That does sound nice. Please remind me what custom exhaust you have. Also, now I remember that custom intake you did. Are you pleased with the performance?
zobari APR 06, 04:56 AM
Yes, I feel better response and engine breath better for higher rpm but not big changes in low rpm. More sporty engine feeling with better usable rpm range in the high side.

It's difficult for me to get a big gm engine here in my country but in the states or in Canada a better engine is more a clever solution if you want a big improvement I think.

I've ported the 6 loggers headers and I have removed the restriction in the y pipe and I have modded the upper intake manifold dawg mod and more volume for the plenum

For the exhaust is a custom with round muffler (50cm) inplace of the cat, I don't have a cat you can see the picture below.













[This message has been edited by zobari (edited 04-06-2021).]

da.slyboy APR 06, 12:11 PM
I don't hear enough squealing tires around those round-a-bouts.
2.5 APR 06, 02:42 PM
Good low tone. What brand/model did you go with for the muffler?
zobari APR 06, 03:09 PM
A Generic universal round muffler 20 inch long like borla for example inplace of the cat but see the picture, the exhaust must be customised because the stock has different pipe for the muffler and the tone is different than mine.

Other example in the states with the 2.8 v6 :

https://youtu.be/mFt1o1c_gQg

Custom, exhaust with cat 2.5 in the stares

See the comments with a sport cat and a small round muffler than mine custom muffler but the tone is very near

My fiero doesn't have cat

[This message has been edited by zobari (edited 04-06-2021).]

Dennis LaGrua APR 18, 10:52 AM
Nice car and one of the best sounding exhausts that I've heard. You probably picked up 10 more horsepower. I noticed very little traffic in the videos allowing for a more aggressive drive.

------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

Mike in Sydney APR 18, 08:06 PM
Zobari, did you notice a loss in torque when you removed the y-pipe restriction? I ask because one of the mods recommended to improve HP and gas mileage for Holden Jackaroos (Isuzu Trooper) on the 4x4 websites down-under is to remove the factory installed restrictor in the exhaust system where the left and right exhaust headers join. I remove the restrictions in my '97 3..2L Jackaroo and the mileage and throttle response was much better. The seat of the pants dyno, however, said that the low end torque had suffered some. According to other post on 4x4 boards this is normal. Just wondering what you experienced on your car.