Reliability?

[ettriguen]

Ok Here is the deal.
I bought a 1991 supra N/A automatic with 161K miles. The previous owner changed the timing belt, water pump, radiator and valve cover gasket.
I want to know if this car is reliable as a daily drive? what should i watch out for in order to avoid a BHG? will a BHG occur just because or do i need to really push the car in order to blow it? I'm not planning on racing, auto crossing or drifting the car for the time being. I really love the way the car looks so i want to repaint it and may restore the interior.

Or should i just sell it and get something else?

Any answers or info would be appreciate it.

Thanks,


Ett.

 

[CACressida]

Might wanna remove the valve covers and torque down the head and pray to the mighty BHG God everynite to keep him away. Other than that, You got one of the most reliable cars on the road.

 

[ettriguen]

What should i torque it down to?

 

[TRG22]

On standard bolts 72ftlb

You could replace them without removing the head with ARP bots or studs, you could then go as high as 90ftlb or so, I read somewhere on here of 105ftlb.

Mark

 

[IJ.]

On standard bolts 72ftlb

You could replace them without removing the head with ARP bots or studs, you could then go as high as 90ftlb or so, I read somewhere on here of 105ftlb.

Mark

^ wrong bzzzzzzzzzzzzzzzzz :nono:

Follow ARP's specs provided with thier hardware our heads AREN'T a solid chunk of Aluminium and will deform if overtightened.

 

[TRG22]

^ wrong bzzzzzzzzzzzzzzzzz

Follow ARP's specs provided with thier hardware our heads AREN'T a solid chunk of Aluminium and will deform if overtightened.

Just quoting what I have read on here, glad you corrected me before the guy went of and did it.

Mark

 

[IJ.]

No probs Mark,

I was a bit shocked how thin our heads are when I sliced one up.

 

[lppro]

wow thats cool!^^

 

[staticpat]

The reliability on the NA/s is up there. I beat mine for two years before it died. I still miss daily driving a supra. Besides avoiding BHG, make sure to avoid rodknock. Check your oil often and fix any leaks. Other than that just regular maintenance should be good.

 

[suprabad]

105 lbs??? Good God!

 

[mkIIIman089]

I daily drive, 50 miles a day... never even a hiccup.

BHGs are brought up WAY too often, most of the time they happen for a good reason, not just at random.

 

[Jeff Lange]

Yes, most of the time, but sometimes they do happen at random... that's an issue, lol.

 

[ettriguen]

so if i keep up the maintenance and keep it calm on the highway i should be alright!

 

[swaq]

^ wrong bzzzzzzzzzzzzzzzzz :nono:

Follow ARP's specs provided with thier hardware our heads AREN'T a solid chunk of Aluminium and will deform if overtightened.

So is 90 ft-lb too high? The previous owner of my car said he went to 90 ft-lb on ARP with a Toyota head gasket...

 

[CRE]

90? 90's fine if the bolts were lubed with WD-40 for the install. Isn't that just a bit higher than the spec for the ARP studs though? Which do you have in there, bolts or studs? Did the prev. owner mention what the fasteners were lubed with when he did that?

 

[swaq]

90? 90's fine if the bolts were lubed with WD-40 for the install. Isn't that just a bit higher than the spec for the ARP studs though? Which do you have in there, bolts or studs? Did the prev. owner mention what the fasteners were lubed with when he did that?

Here's what the listing said, I'm not sure if they were lubed:

New Toyota headgasket less than 25k mi ago
ARP head bolts torqued to 90 ft-lbs

 

[CRE]

Not helpful in the least. If that was done with moly that's a hell of a lot of squish the HG's undergoing. It's a bit late to simply back it off, especially with 20K+ miles on the HG (with a composite gasket, it was too late to back it off the minute he did it).

 

[swaq]

Yeah, it sounded a bit high. Do you think the head is fine though? Will it still be fine with more power? I'm looking for around 300-350 rwhp eventually, maybe 400 rwhp.

 

[Poodles]

probably fine as they usually loosen up anyways (thats why you do a retorque after 500 miles)

FYI: You CAN'T replace the stock headbolts one by one with studs as they won't screw in all the way. You need to clean the threads out and then get them to go in all the way...

 

[jugodegolf]

so if i keep up the maintenance and keep it calm on the highway i should be alright!

I put 205k on mine, only once had an issue. Then went 2jz. bhg:3d_frown: