Why didnt you..? turbo question

[bob442]

i'm wondering something here guys, with all the turbo setups, how come no one has tried to use a torrent 3400 manifold for there 3400/3500 turbo builds, main gain out of this is having less pressure pipe running back and forth, as the intake is on the front (passenger) side of the motor.

I'm trying to find a picture, but i know for a fact that they came with a 3400, with a different manifold. It was alot like the Turbo manifolds that were built in few for grand am applications, i recall seeing it a long time ago.

there was a different intake with out drive by, but this is the same idea, one came into my work the other day.

http://z.about.com/d/trucks/1/0/T/T/06_torrent_fwd_engine.jpg

[geldartb]

that upper intake wont fit under the hood.

there is a picture someone posted with that upper intake on a 5th gen grand am and the part where the throttle body bolts to sticks up way too much.

take a look at this

http://60degreev6.com/forum/f96/equinox-upper-intake-t44435

[Weatheralls Auto]

the intake can be flipped as there is no powersteering pump

[bob442]

oops, i appologize for the double post. I think its worth the hole in the hood though. something could always be figured out.
I know there would be room for that thing under my hood of my W body, and maybe a ram air hooded GA aswell. But know one knows, i'd like to see it done though.

[geldartb]

i know i gained room under the hood with the sc/t hood but how much i dont know as i havent looked into that.

ill take a look tomorrow to see how much i gained on the setup i had with the stock hood. im thinking maybe another inch or so.

[bob442]

theres also 2 layers i believe on the hood, so you probably could cut through the first one and make room. plausable...

[Nick-G]

I'm considering just flipping my 3500 UIM.

Besides having less piping I would also think having the cold and hot sides of the turbo setup on opposite sides of the engine would help prevent heat soak.

[Weatheralls Auto]

I had planned the same but PS Pump in the way and I wanted to keep AC so had no other place to relocate the Pump.

[gar70614]

will the lx9 uim clear the ps pump mounting tabs if flipped around? the neck of the manifold dips kinda low, would u need phelmonic (spelling) spacers?

[Joseph Upson]

Taking 4 or 5 feet out of the charge pipe plumbing is not likely to make a noticeable difference. I have about 16 ft of plumbing between my compressor outlet and throttle body (front mount intercooler in a Fiero) and didn't notice anything unusually different as far as response time to boost compared to when it was about 1.5 ft of travel.

I was concerned about it and was informed by someone else with a lot of tubing between their turbo and intake (~10 ft) that they didn't notice any appreciable drop in response time.

I calculated the time increase over distance using air velocity and volume according to the pipe diameter and length and came up with such a small figure that it wasn't worth being concerned about plus the gain resulting from the more than 100 deg temp drop was far greater than the little time loss according to the calculation. The air travels very fast.

I'm manic when it comes to creativity and by the time I got around to the "What were you thinking" question I had already completed the install. I'm going to relocate the intercooler to the rear and design an air scoop for it mainly because I can't completely incase the pipes inside the rocker panel skirts without notching the entire length of the rocker panel.

[geldartb]

theres also 2 layers i believe on the hood, so you probably could cut through the first one and make room. plausable...

yeah but then your weakening the hood. if your not using the metal hood then that could be very susceptible to cracking especially with the fiberglass sc/t hood.

i have the carbon fiber version which isnt very thick to begin with so cutting the bottom layer isnt going to gain you much at all. maybe like 1mm or 2.

you could make a 2 or 3" cowl using the stock hood which i thought about but with the shape of the hood will it look good.

[bob442]

Taking 4 or 5 feet out of the charge pipe plumbing is not likely to make a noticeable difference. I have about 16 ft of plumbing between my compressor outlet and throttle body (front mount intercooler in a Fiero) and didn't notice anything unusually different as far as response time to boost compared to when it was about 1.5 ft of travel.

I was concerned about it and was informed by someone else with a lot of tubing between their turbo and intake (~10 ft) that they didn't notice any appreciable drop in response time.

I calculated the time increase over distance using air velocity and volume according to the pipe diameter and length and came up with such a small figure that it wasn't worth being concerned about plus the gain resulting from the more than 100 deg temp drop was far greater than the little time loss according to the calculation. The air travels very fast.

this may be very true, but on a setup for a FWD the piping has to travel through some hot spots to get back to the intake, and doesnt look to attractive to boot. when i boosted a beretta the charge pipe had to run inbetween the rad and exhaust manifold, then by the turbo, and on top of the exhaust again. With how easy it would be to make a intake manifold, i'm suprised no one has for these motor yet. its too bad the torrent manifold wont fit.

A moderator can feel free to close this thread.

[Weatheralls Auto]

Yes UIM WILL clear the PS mounting Tabs.

I had thought about mounting the PS Pump Under the ALT, but then my A/C Accumulator would be in the way.

Spent weeks trying different solutions to no avail.

Hacking up UIM was the best solution I could come up with, but don't have the skills to be doing that, and as Joseph pointed out, the benifets just did not out-way the costs. (for me anyways)

[bszopi]

On a Beretta, you have ~1.5" between the standard 3x00 plenum and the hood. I want to say the 3500 plenum (what the Torrent plenum you are talking about is based on) is slightly taller than a 3100/3400 plenum, but lets forget that. The TB opening for those is ~70mm IIRC, so there is 2.75", plus the surrounding metal. I figure it sticks up at least 4" above the standard height of the plenum. Therefore, you are looking at ~2.5" difference. Assume the hood is 0.5" thick in that area and now you are at 2" above the hood. In order to fit it under a cowl, the cowl would have to be at least 3" in order to be 2" at the required location, plus wider than normal since the TB will be so far to the passenger side. Figure piping, throttle cable, etc, at it just doesn't seem worth the hassle...