Astennu

Hello,

Im doing a lot of reading into forced induction for my 350z SC build.
I want to try to keep the crash bar and thus using a smaller intercooler so i dont have to cut in to it (reducing strength) or removing it.

The biggest one that can fit below it is the Threadstone TR8L
Its rated for 575HP and 725-750CMF.

My goal is hitting about 450-500 RWHP so that would be about 570-630 flywheel hp.

A Vortech V3 SCI kit wont cut it. But that one already pushes 1050cfm and 17psi. The intercooler included in the kit looks a lot like the smaller TR8. (rated for 500hp 750CMF)

I was thinking about a V2 TI blower rated at 1400cmf 26PSI.

I have tried to find info about SC / Turbo cfm VS intercooler max flow CMF.
But i cannot find what would happen is if the blower pushed 1400cmf and the intercooler can only flow 750.

I can imagine the cooler wont be able to cool down the air good enough and i guess i will not gain much pressure on the intake of the engine if its to restrictive. But thats just a guess and i really would like the data to back it up and calculate what i need to hit my targets.

I hope someone here knows how this works.

str8dum1

iTrader: (11)

you can fit a 4.5" IC behind the stock crash bar no problem.

OldManZ350

iTrader: (23)

When an intercooler is not sized properly for your Hp air will stay hot and you will loss lost of HP.

I have a V2 SC-Trim only a 1000cfm and I use a TreadStone TR-1245rated at 1469cfm.

http://www.treadstoneperformance.com...cooler++1000HP

IF YOU RUN THE TI-TRIM ID GET THE THE NEW TR-1224-18

http://www.treadstoneperformance.com...1245-28+1200hp

BluestreamDE

^This! I wholeheartedly agree, and I definitely see upwards of +50°F intake temps under boost with my shitty eBay Intercooler, granted it was better than the stock intercooler that came with the kit, it's definitely too small for my setup.

Astennu

Did you cut into the cash bar to make it fit? Or is it completely intact?

That was what i preferred but i don't want to compromise my cash bar. i want it there to protect me and my engine if the crash is not to hard.

But you are able to do 576 wheel hp with a older SC trim. Its better then the current SCI but the new SI is even more powerfull.
Do you have a lot of supporting mods? because most people that have a SCI only get around 450-460 rwhp. But your blower is not that much more powerfull then the SCI.

OldManZ350

iTrader: (23)

The 577whp is on Race Gas with Race Tune.

508whp is on Pump Gas

The V2 SC-Trim will only flows 1000cfm, the SCi flows 1050cfm and Si flows 1150cfm.

Also you can get an after market crash bar that will fit with the larger Intercooler.

Astennu

500 rwhp is enough for me. Maybe i should just settle with 450. Stock would be about 250 so its still a nice boost.

But the SC does have higher boost 20psi vs only 17 for the SCI. That would help make more power.

i could look into that thanks for the tip.

OldManZ350

iTrader: (23)

Pic of Catch Can for Logiqal

Logiqal

iTrader: (1)

Thank you sir.

Logiqal

iTrader: (1)

Will upgrading the intercooler require a retune?

OldManZ350

iTrader: (23)

A tune is not required, but you will be leaving 30-40 WHP on the table.Because of the much cooler ATI's timing can be advanced a good bit.

meanz

iTrader: (23)

I had a huge vibrant intercooler on my old ti setup. I swapped to a tr1245 intercooler and logged 30-40 degrees cooler. Never redynoed, but I was at 580hp@17psi and like 140* before the switch.

bealljk

iTrader: (13)

Just looking to pick-the brains of the supercharger guys ...

Has anyone determined their pre and post intercooler temps?

Obviously as ambient temp is going to heat up as it passes through a belt driven charger but is it equivalent to a traditional exhaust driven turbo charger?

Is an intercooler as effective at cooling an intake charge on a belt driven charger versus a exhaust driven charger?

Astennu

Is a lower air intake temp going to give you that much extra power? seems much.

Compressed air is going to be hotter then normal. But i dont know how mucht difference there would be betweend a SC vs turbo's.

Conway_160

iTrader: (1)

Turbo air will be hotter than a supercharger, the exhaust housing is going to heat up the induction side further increasing the heat of the air.

OldManZ350

iTrader: (23)

for every 5.5f degrees lower intake temp you will gain 1% HP. this is without any additional tuning.

Say you lower your ATI's 27.5f degrees, that = a 5% HP, on a 500WHP Car that's about 25whp.

And because of the Lower ATI's you can Advance the Ignition Timing.

bealljk

iTrader: (13)

yes...so an intercooler takes a turbo'd charge of 180 degree temp pre-intercooler to a 100 degree post-intercooler ... delta of 80 degrees

a supercharger doesnt has an exhaust housing to heat-up the charge ... so lets hypothetically say the ambient air is 80 degrees, the pre-intercooler temps are 100 degrees ... my question is how much of a temperature delta does a supercharger intercooler decrease the charge by?

YES!!!! I'm so glad you said this! The perception is that cooler air has more o2 (which is does, but not enough worry about) the win is in the ignition advance...

OldManZ350

iTrader: (23)

Cold DRY Air has a TON More o2 in it VS Hot HUMID Saturated Air.

Depending on the Boost, I've seen cars with over 300*f pre Intercooler. This is why the super High Boost Supercharged Cars use a Air to Water IC filled with Ice that can achieve 50*f ATI's on a 100* day.

bealljk

iTrader: (13)

well yea...two extremes for sure ... all things being equal - good old denver colorado, 65 degree morning temp vs. 95 degree afternoon temp ... change in o2 of 30degree temp swing?

I know there's plenty of applications that are boosted to the hills...but your average 12psi vortech/procharger setup running an air to air IC (of course a air to water/ice is significantly more effective) ... pre-IC vs. post-IC temp difference?

who's here runs a 12-15psi supercharger setup and has a harbor freight laser temp gun? do me a favor, would ya...go run your car for an hour (get it nice and hot) ... now go measure the...

ambient temp:
temp of your air filter:
temp of the supercharger housing:
temp of the pipe between the blower and the IC:
temp of the pipe between the IC and the TB:

Logiqal

iTrader: (1)

To fit the TR1245, do i have to relocte the horns and trim what looks to be some sort of metal gaurd for the hood latch? I have a pic below. Anything else I should be aware of except for re-routing my air intake that currently sits on top of my tiny 8 inch intercooler.