Boost infection

iTrader: (6)

I am doing this build over the winter and wanted to know if I should run an intercooler on my Lq4 e85 turbo build with 80mm turbo. This will be on a street driven car with no more than 10 psi of boost. Also I did alot of searching before posting

Give me your opinions please

Thanks

Blackpanther99

iTrader: (8)

I doubt you will need it. Quick question. Why no more than 10lbs of boost? Lol Im sure youll go over 10lbs eventually. Thats where you could put some interest in a intercooler.

Boost infection

iTrader: (6)

Yes I trying to fool myself on 10lbs but boost is very addictive. I feel like anything over 10lbs I would need to atleast build the bottom end.

fotoboy

iTrader: (1)

Run one IMO. If the turbo breaks and sends pieces though your engine you'll wish the ic was there to catch the pieces.

71 chevy

iTrader: (18)

no need for an intercooler at that boost level, on e85

just more weight on the wrong end of the car.

keep it simple

LS1NOVA

iTrader: (12)

Put you big girl panties on, run more boost and an intercooler.

Im mean come on, your screen name is Boost Infection.

jleews6

iTrader: (2)

I cant understand why anyone wouldnt want to run one no matter how little boost you plan on running.

hellbents10

iTrader: (10)

Why to tack on more weight at that power level? Up to 15psi I the thought of an intercooler does not cross my mind.

00Wildcat

I agree with this from Nate and TJ's statement. You don't need one at 10 lbs but I highly doubt you will stay at 10lbs and the first issue you will run into when going over 12-15lbs is NOT having an intercooler. 2 years ago I was starting to build a 9 second car. August of 2013 I was driving/racing an 8 second car that today I'm starting to upgrade to a 7 second car. It would have been much easier and slightly cheaper to build a 7 second car from the start.

Boost infection

iTrader: (6)

Thanks for all the replies makes alot of sense of more weight on wrong end of car.

Now thats scary

Yes and Im going into rehab for the user name

Trying to to keep it simple

I would think I have a safety net with the e85 at 10lbs wouldnt 15lbs be pushing it?

Thanks

fotoboy

iTrader: (1)

Agree and if you do any sort of repetitive street testing iat will be a issue. Not that much more work.

Boost infection

iTrader: (6)

Im leaning more towards doing no intercooler for now. If I need more boost it will be simple just to add a intercooler.

Wicked69

I have run it with and without an intercooler. I am planning on pulling mine off and running meth/water injection. E85 doesn't even need it but I am thinking meth/water injection will keep weight off the front as 71 chevy said and allow you to run more boost when you want to should you change your mind.

samdogmx

iTrader: (14)

i wouldn't bother if its never gonna see more than 10psi on E85

my old setup I ran up to 22-23psi with NO IC on E85 with water/meth but IATs were 275

my new combo is getting a A/A

Boost infection

iTrader: (6)

Yes meth/water seems to be the answer to keeping weight off the front.
Thanks
Wow 22-23psi and IATs at 275 .Thanks for the info

LILHEMI

lol run an intercooler. my buddy ran an s480 on his 6.0 with no intercooler and e85 and his IATs were almost 200* he put meth on it and his IATs sit around 140 now. still high. i have a $400 intercooler and pre meth i was seeing 100* IATs. now with meth under boost im in the mid 60s. running an intercooler is a no brainer. anybody who doesnt is just a cheap idiot.

HexenLord

Might as well do it now. You're kidding yourself with 10 lbs on that big of a turbo. Within a week you'll try to squeeze out 12 PSI, and then 14 PSI. Before a month is up you'll have added a PSI here or there and you're already at 18.

If you wanted 10 PSI, should have went with a smaller turbo that'll offer more torque. With an 80mm, the bug is going to bite you hard.

CameronVic

iTrader: (5)

Ask this question first OP:

Do I want to leave a ton of power on the table?

If the answer is "yes", then don't put an intercooler on it. If the answer is "@#$ no, I want all the power I can get!", then put an a2w on it.

Torqueshaft

^^^^^^
Yep...What he said.

Wicked69

Ok. I have run it with and without an IC. On a 180,000 JY 6.0 and me tuning, which at that time I had no clue how to tune and no IC my car ran a 6.04@118.92 mph using the twin ON3 70's. Yes my IAT's were high but the car ran like a champ. No boost controller just ran it all out. I used the 862 heads on it which brought the compression up to 11.1 and I ran windshield washer fluid for meth injection. Car never missed a beat. I drove it 3 hrs to memphis for Super Chevy, waited in line for 2 hours with it on and off, did the 30 mile drive, made a 1/4 mile pass and it ran a 9.38. I really thought it would get pulled off the track because it wasn't set up to pass to run anything faster than 10.0. To my surprise they pulled me up again so like a dump *** I added 2 more lbs of boost and ADDED 2 more degrees of timing. I blew it up just after the 1/8 and it still ran a 9.72. Like I said I didn't understand tuning and panicked when there was no time to discuss it. I truly believe that if I would not have added the 2 degrees of timing and the 2 more lbs of boost I would have been fine. This was with NO IC.

Now I have spent all this money to run a forged engine, boost leash, Holley EFI, an A2A and the best the car has done is 5.99 at 115mph. For the money I spent I would rather had kept getting 7 months a pop at $500.

I am now going to pull the IC again because I think it is holding it back. I do plan to ad meth/water injection to it. I would think that the car would be a whole lot less likely to detonate by running straight tap water over anything else. Plenty of studies on this. This way you can keep the IAT's fairly reasonable. A car on E85 should not need an IC and it weighs a ton and I would think with low compression like mine 8.5 I would be better suited to run more water injection and someone who is more like 10-11.0 might do better to run more methanol. I guess my point is the water/meth injection should act s the intercooler. Sure it can fail but so can anything else. Your oil pump can go out and your done, your fuel pump can fail and your done. Lots of scenarios.

I will post back when the season starts and see if mine picked up a bunch or if I blew it up. If I blow it up I am going back to junk yard engines. Shoot they last 6-7 months a pop at all the boost I could throw at them. I even used the crappy LM7 at one point.