front mount vs. rear mount

[jetmech]

So I've been seriously considering switching from rear mount to front mount turbo, particularly the trick turbo but I'm not sure of a few things.....

1 - Even with an intercooler, what kind of IAT do you see in relation to ambient air temps?

2 - How fast does the front mount spool?

3 - Do you retain every day drivability?

4- Where do you tap into the oil for the turbo's feed and return lines?

5 - Will I see an improvement on my 60' running about the same amount of boost?

6 - About how much power per # of boost will I see?

I could use some good advice, answers and suggestions. Thanks in advance

[George C]

So I've been seriously considering switching from rear mount to front mount turbo, particularly the trick turbo but I'm not sure of a few things.....

1 - Even with an intercooler, what kind of IAT do you see in relation to ambient air temps?

2 - How fast does the front mount spool?

3 - Do you retain every day drivability?

4- Where do you tap into the oil for the turbo's feed and return lines?

5 - Will I see an improvement on my 60' running about the same amount of boost?

6 - About how much power per # of boost will I see?

I could use some good advice, answers and suggestions. Thanks in advance

1. as for temps im usually 20* above ambiet. that is no meth no e85. this is after a 1320 pass. if im cruising im only 10* above ambiet. when i was running E85 i seen a drop of 5* below ambiet with it after a full pass.

2. well my setup isnt for most. mine spools decently for the size of it but im not full boost till about 4500-5k i spin to 7500 tho. my setup is like a huge cam motor.

3. my truck is everybit daily capable. if its nice out im driving it. nothing out of ordinary comes up. on highway ive got as good as 19mpg. i live in a area with hills everywhere

4. my oil feed is above the filter and return is by the starter

5. boost is measurement of restriction. its hard to say, you might gain that all depends on the volume of air you take in

6. this also depends on how efficent your setup is. im around 29 rwhp per pound of boost. the cooler the temps the more volume you can stuff the more power per psi youll make

[jetmech]

Got it. I take it the cats get deleted all together

[George C]

Got it. I take it the cats get deleted all together

whats a cat?

[jetmech]

catalytic converter

[r.barn]

Go front mount or go home.

doing a rear mount install on car with room in the
engine bay is dumb.

You want your turbo as close to the engine as possible.
A hot turbo is a happy turbo.


Let's get a little technical on WHY a front is better since we get this question a lot. .................

exhaust gasses coming right out of the engine are HOT
since they are hot they are expanded,
expanded gas in same space must move faster to achieve flow thru
smaller space. faster gasses going into turbo equals faster spool.




you can have a CAT if you want too.
I designed my front mount to have a high flow Cat.
Gonna try and work in an electric cut-out pre-Cat but dont know if have room.

[George C]

catalytic converter

i know just being smartass..since i havent had cats in many years

[GasGuzzler]

A GTO has no room under the hood without major redo for a front mount so r. barn's is sorta still in tact.

[Trick1]

If you already have a rear mount might look into our low mount pipe set up. 500.00 moves the turbo ALOT close to the front. Right beside the tranny area.

Somethings alot of people over look is not just the heat, but the exhuast pulse energy. The closer you are the more you have of it.

You can reinstall a HI flow cat to pass any visual emmissions stuff...

[George C]

did some testing yesterday to see where i build boost and etc. with the 410s and a slight grade around 35mph if im in 2nd gear i can see about 5psi by 3k by giving it full throttle. i also did same test in 4th gear going at a faster rate and seen 5psi by 2500 rpms