Supra Forums banner

1 - 16 of 16 Posts

·
2005 LP640
Joined
·
930 Posts
Discussion Starter #1
For all you high horsepower MKIII owners (450rwhp+), do you guys notice coolant and other various hoses poppin off like mad? I can't seem to get mine to stay on.

Any tips?

EDIT: I know it sounds absolutely retarded because I don't know how high hp would make coolant hoses pop off more, but I never had this kinda problem until I was pushin that kinda power.
 

·
Republican
Joined
·
8,421 Posts
Yes, use t-bolt clamps

And the only hoses i had poping off were vacume hoses... i had to use hella zip ties
 

·
2005 LP640
Joined
·
930 Posts
Discussion Starter #6
Ckanderson said:
Yes, use t-bolt clamps

And the only hoses i had poping off were vacume hoses... i had to use hella zip ties
I got zip ties on my vacuum lines as well. They won't really hold for some reason though :( (They dont fall off, but its just as easy to pull them off)

They have T-bolt clamps that small?
 

·
LEADED FUEL ONLY
Joined
·
2,068 Posts
I use the standard toyota supplied 155k mile old clamps. I think you've got a problem that needs to be addressed. Sounds like you're overpressuring the cooling system for whatever reason.
 

·
Registered
Joined
·
2,767 Posts
for me, the ic pipes really having a hard time staying on around 18psi. i've noticed that when in those boost ranges you need to have the normal screw style of clamps on real tight in order to hold. i think when you get to 20+psi is when the limit is pretty much reached with this style of clamp. i personally have had them hold 22-25psi of boost for real short periods of time. they held better than i would have thought at 20, but you gotta check them pretty often. i dont know why i'm posting i dont think i'm a high hp mk3, but i thought i could give some feedback.
 

·
Be original, not a copy
Joined
·
861 Posts
Constant tension Toyota clamps (stock style) work good for me. They allow for the hose to swell and/or relax without loss of clamping tension.

As far as intercooler pipes, no problems. I only have three pipes total though. Lower pipe is bolted to the motor so it will not blow off of the turbo and there is a "hump" connector to the intercooler to allow for engine movement. Upper pipe is two pieces but no problems there. The first pipe from the intercooler is bolted to the body so it can not come loose from the intercooler and then ahump connector on each end of the second "upper" pipe to allow for movement but it already has a fairly tight fit. Good up to at least 23psi (dyno runs).
 

·
DDDDUUUUUBBBBBZZZZZZZZ
Joined
·
2,022 Posts
Band clamps should be fine for coolant hoses. Make sure they're nice and tight and you aren't overpressurizing like said (BHG or rad. cap). However, the stock clamps on some toyota oil and coolant lines are actually better than band clamps b/c they have 1 screw on each side of the clamp or sometimes they have both ends of the clamp under the head of the screw so they can't move.
 

·
Registered
Joined
·
5,966 Posts
After I upgraded my turbo, it was blowing off a lot of vacuumn hoses.

I used zip ties on all the vacumn hoses to hold them in place.

As for intercooler pipes/couplings and radiator clamps, I ordered a set of T-Bolt clamps from E-Bay, and so for i am all set.
 

·
Buddy thought I had a NA
Joined
·
2,463 Posts
87turbosupra said:
Well the motor is 100% freshly rebuilt top to bottom, so no BHG here. 2mm MHG w/ARP bolts.

You think I need to burp the system?


you should not be blowing off coolent hose off perid


have you put on higher persure cap on my raceing rad came wiht 16 psi one that i going to never use

if any thgin i thinkyou are gettign air into you system aka air is in there or you have bhg

or your stock hoses are done for

for persue to rise your temp has to rise in less you are runing way to hot or just have bad rad

ps never trust the stock gauge i bet your car just runign to hot

if not bhg that is
 
1 - 16 of 16 Posts
Top