TPITuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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how does your guys air intakes look like on our tpi motors, im trying to find an elbow that will work with my application but i still havent been able to find anything that will work yet
no idea how many times people would come up to me and ask if i knew the engine was making a "weird winding noise"... i eventually stopped explaining that it was a gear driven timing set and started telling people not to worry... its just the Japanese children i use for gas... then imagine the odd looks i got
Quote:
Originally Posted by CamaroHawke
I'd rather invest several thousand in restoring and upgrading a good-looking old car than buy something new.
lol nothing, whatever works right! mine is from home depot, but i could never find anything like that big black elbow that you have. i mainly just need something to make the turn. i even thought about going with an lt1 intake elbow but the bad thing about them is that there is a bung welded into it for the sensor that we dont use on the tpi.
ANY OTHER PICS FROM YOUR INTAKES WOULD BE GREAT! get the ideas flowing
lol nothing, whatever works right! mine is from home depot, but i could never find anything like that big black elbow that you have. i mainly just need something to make the turn. i even thought about going with an lt1 intake elbow but the bad thing about them is that there is a bung welded into it for the sensor that we dont use on the tpi.
ANY OTHER PICS FROM YOUR INTAKES WOULD BE GREAT! get the ideas flowing
That elbow I am using is just a 90" PVC Elbow, the piece that attaches to the TPI itself is a 4x3 Reducer, ALL of the connections have rubber downspout connectors covering them with hose clamps....so no air can get out.
Did you notice a fair amount of increase of horsepower after that?
I have no real numbers to back it up, but as soon as the car was started for the 1st time with it on, there was a Noticably louder sucking sound from the filter itself....more air..yay!
That, and I definately noticed throttle response went up, thats a fact, and as I said, I have no real numbers, but I can definately feel a seat of the pants difference at higher speeds...
I ran the same setup quisterio has and I noticed the same things he did. Mine sounded like a small supercharger . I also used an airfoil. I planned on using my front foglight hole as a ram air duct and putting the filter under the charcoal canister plate so that it gets pure air and not air from under the hood.
I really need to make me one of those, think you can give a bill of materials or parts list of what you used? my stock duct work is cracking and i'm not passing emissions so i really wanna do this before I spend over $100 on a pre-made one! thanks in advance.
I have a question about your intake setup.. how did you get the 4X3 reducer to fit around the throttle body? the TB is oval and the reducer is round, seems like you'd have to clamp it down really hard to make it oval and to seal properly.
i had a spare reducer like that layer around and the other day for hahas i was just messing around seeing what i could do for an intake and you just crush it to an oval shape them put it on and clamp it down im pretty sure it was sealed tightly too.
@quisterio... nice job on that intake dude. I've been meaning to do a custom job on my 93 LT1 something along those lines... the guy I bought it from put a crappy ebay CAI on it that doesn't really sit where I'd like it to. Eventually I plan to do ram air, but as a cheap alternative for the moment (so I can invest in better bang for the buck upgrades), I wanna take some silicone piping down under my driver's side headlight, pop out that useless black plastic panel and stick a K&N cone filter down there so it gets air directly blown into it. Your piping has inspired some ideas
I've been using this thread for reference and thought i'd show what i've done to my T/A.
I basically did the same setup as quisterio, but went a couple steps further.
I cut a whole in my battery tray, put a 90 elbow underneath it and attached the filter down under so i can get cooler air, instead of that hot air in the engine bay. I've noticed a difference when the motor is hot and during warm days, the car revs up faster and she can breathe
in addition, i left the flap underneath the nose open to create a lil ram air effect:
Total cost: $61
Hope this helps anybody interested in making their own cold air intake. :-)
Mods so far: MSD Cap and rotor, MSD ignition coil, Accel 8.8mm ignition wires, Hooker Super Comp Shortie Headers, Flowmaster 3in catback, underdrive crank pulley, custom cold air intake, NOS wet 125 shot, air foil and a lead foot! no E/T's yet. ...TURBO COMING SOON...Other mods include keyless entry and remote start, and Sequential Turn Signals.
Re an elbow for air intake, I picked up a length of flexible hose by Spectre at Kragen's, hooked it to the tpi intake, easy fit, and directly connected the other end to the existing intake hose. I removed the box and brackets. It was a simple operation, and I noticed an immediate difference in performance. Total cost around $30.00. Havent yet messed with the air cleaner canister, but that is coming next. Undecided about the oiled cotton filtration media, however.
welcome to the board, I prefer the oiled media because "wet" material usually attracts more dirt particles and such... this thread is kind of old and I am no longer using this settup...
Mods so far: MSD Cap and rotor, MSD ignition coil, Accel 8.8mm ignition wires, Hooker Super Comp Shortie Headers, Flowmaster 3in catback, underdrive crank pulley, custom cold air intake, NOS wet 125 shot, air foil and a lead foot! no E/T's yet. ...TURBO COMING SOON...Other mods include keyless entry and remote start, and Sequential Turn Signals.
Mods so far: MSD Cap and rotor, MSD ignition coil, Accel 8.8mm ignition wires, Hooker Super Comp Shortie Headers, Flowmaster 3in catback, underdrive crank pulley, custom cold air intake, NOS wet 125 shot, air foil and a lead foot! no E/T's yet. ...TURBO COMING SOON...Other mods include keyless entry and remote start, and Sequential Turn Signals.
Mods so far: MSD Cap and rotor, MSD ignition coil, Accel 8.8mm ignition wires, Hooker Super Comp Shortie Headers, Flowmaster 3in catback, underdrive crank pulley, custom cold air intake, NOS wet 125 shot, air foil and a lead foot! no E/T's yet. ...TURBO COMING SOON...Other mods include keyless entry and remote start, and Sequential Turn Signals.
Thats pretty cool. Got any links to pics to your car? I have never heard of swapping a Syclone engine into a Fiero...
Ive helped do a couple of V8s, did a little work in a northstar and helped out
on a few SC3800s... I wanted the 4.3 because it was a code W CPI
200 hp 260 ftlbs naturally aspirated and i just knew i was going to boost it.
there are about 4 4.3 fieros runing around but i believe mine is the only one
with boost
using the Syclone intake, ecm, and injectors etc was a natural choice since
moats adapters and lots of tuning soft wear available for this setup the boost
control is awsum btw.
i have a question about your valve covers first off the look great,second on the aftermarket valve covers ive seen theres no where to pour the oil and is that rubber hose coming from the intake on the passengers side neccessary and also how did u chrome or polish yours thx
. I also used an airfoil. I planned on using my front foglight hole as a ram air duct and putting the filter under the charcoal canister plate so that it gets pure air and not air from under the hood. 
