89pickupsr5

so far being on this site it seems like i don't want to deal with downey or DOA so, does anyone know of any other companies that manufacture larger bore TB for a 3.0 or has anyone had a good experiance with these?

SEAIRESCUE

I believe you can get a Supra TB that will bolt on and give you some increased flow? Search this site to see what you find. I know many swap out their air flow meter with an early Supra model to get better flow on the 22re's. But, I wonder if any of that will make a noticeable difference on a 3.0 slow? Kind of doubt it. A free flow larger exhaust and a cone-head filter seems to be the most common upgrade with respect to time and dollars. Fresh valve jobs really help those old motors too. The exhaust valves become really pitted over time.

fastkevman

Save your money....you most likely won't see any improvement installing one of these.

I have built several TPI small block chevies and a 5.0 mustang in the past, and with these significantly more powerful engines (proven on dynos time and time again by every magazine on the shelf) you had to add some key components to really need more incoming airflow to make a power difference (cam, heads, etc.)

So imho save your money, I have a 3.0 and I would never bother to do this without having my heads redone (larger valves), installing better cams, and headers with a free-flowing exhaust.

89pickupsr5

ya i'm gonna redo the heads in the spring time i was just wondering if anybody else made them for when i get around to that.

Robert m

iTrader: (2)

whats wrong with downey?

89pickupsr5

i dunno i heard somewhere they're no good but, i'm gettin their leafspring shackles, clamps and, flip u-bolts unless someone can steer me away from them.

ks_yota

worthless imo change i think changing the filter would better increase air flow or headers.

MonsterMaxx

You need to have done tons of work to the 3.slow to take any advantage of an increased size TB. If you are stock or near stock it'll do nothing but hurt the bottom end and make tuning the engine more difficult.

=bad choice

89pickupsr5

ok so what if the engine is brand new along with headers and exhaust and i plan on gettin' the TB in the springtime along with cams, valves, a port and polish and a supra canister/sensor? and what exactly do you mean by tuning? (i have a full shop and automotive school at my fingertips)
I was also thinking about adjustable camshaft sprockets.(LCE said they could meke them)

GenXr

Other than being pricey, the only products I've heard consistent gripes about is the 3.0 header and their wimpy IFS truss. With as broad a product offering as they have, it would be very difficult for every product to be a #1 smash hit for everybody.

Personally I've had great service from them and their products seem to be very well made.

I don't know the owners of Downey and only had one transaction with them. So take it for what it's worth. Others have had good experiences to and others legitimately have had poor experiences.