North East F-Body Association

North East F-Body Association (http://www.northeastf-bodyassn.com/index.php)
-   SBC/BBC (http://www.northeastf-bodyassn.com/forumdisplay.php?f=6)
-   -   More flow less torque? (http://www.northeastf-bodyassn.com/showthread.php?t=5577)

Video 09-20-2014 03:52 PM

More flow less torque?
 
It seems like the more flow my engine has the less pull it has.

I bought my car bone stock. It had original exhaust, intake, ignition, everything. It was slow but from a stop it would kick you back and you could really feel it pull.

As soon as i removed the cat and put on an aftermarket muffler (Flowmaster 80) i felt less torque, maybe more in the upper end. Then today I put on a Spectre air filter for more flow up top and as i leave after putting it on again it feels like it has less pull.

I think the best word to describe is it feels a lot smoother throughout the RPMs. Its very consistant but it just doesnt seem as torquey/jerkey as it did before.

So whats the deal am i imagining it? Do i need to adjust the air/fuel ratio now? Less back pressure? Usually the placebo effect is opposite where you think your car suddenly has 50 extra HP, not the opposite.

ILuvPizzaTimes10 09-20-2014 04:38 PM

get rid of that muffler. i picked up 5 mph and 20rwhp from switching to a hooker aero chamber. same sized pipe. 3"in 2x2.5" outs

SLP IROC-Z 09-21-2014 01:13 AM

it could be lean

Video 09-21-2014 01:30 AM

Well...you can almost forget everything i said...because ive been hearing this clunk off and on and today i finally dove in and sure enough the transmission mount was in half...bought a polyurethane...found the torque...

My84Z 09-21-2014 01:43 AM

More it breathes headers etc you lose alittle down low but gain alot up top.

Video 09-21-2014 01:06 PM

Quote:

Originally Posted by My84Z (Post 88062)
More it breathes headers etc you lose alittle down low but gain alot up top.

I'll have to dyno it someday. I rarely if at all floor it and I'm afraid to with issues I've had with past Camaros. It definitely changed with the mods just hard to tell.

Formula413 09-21-2014 02:27 PM

Be careful running a poly trans mount if you still have the stock rubber engine mounts. When the engine flexes and the trans can't flex with it it can crack the tail shaft housing.

ZFreie 09-21-2014 04:46 PM

Quote:

Originally Posted by Video (Post 88074)
I rarely if at all floor it and I'm afraid to with issues I've had with past Camaros.

You would cringe at most of us on a daily basis lol

Video 09-21-2014 05:41 PM

Quote:

Originally Posted by Formula413 (Post 88076)
Be careful running a poly trans mount if you still have the stock rubber engine mounts. When the engine flexes and the trans can't flex with it it can crack the tail shaft housing.

Good tip. Are engine mounts expensive? Poly ones anyway.

84ta406 09-21-2014 05:48 PM

Not really but theyre a bitch to do.


All times are GMT. The time now is 06:59 PM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.