Turbo B20 with 150K, or new motor?

[HKDxSAVIER]

non v b20b it has around 150,000 miles

are the miles to high to turbo?

heres my situation
im getting $2000 hopefully in a month and have saved up some other money i was
thinking maybe just get a new motor
b18 b20 maybe vtec that averages 30,000 miles and just turbo it later?

what would be best??????

thanks

 

[corona88]

I'm sorry but use better grammar if possible. I was having such a hard time following what you wrote. Anywho, no 150000 is not a lot of mileage when going turbo, mine had 175000 and now has 178xxx. The things you have to consider is, is motor healthy enough? You can judge this by doing a compression test and leakdown. If these tests come out good then your motor is healthy enough. Since the motor has 150k I would recommend a full tune up while you installing all your turbo parts. Water pump, timing belt, fuel pump (Your going to have to upgrade regardless), fuel filter, spark plugs, wires and ect.

Now the downfall, you have a b20. These engines from what I've seen and read are not the best to turbo due to there weak sleeves. This why you see more b18b build because they have slightly thicker sleeves and lower compression which is good for a turbo build.

 

[heykosal]

What do you mean by "averages 30,000 miles?"

And really, the mileage on an engine doesn't very much matter if the engine is in good health. Of course, the more miles it's got the more likely it is worn-out, and may be unhealthy. But you should always check the health of the engine before boosting it, or doing anything other than bolt-ons.
At the very least, compression and leak-down testing. I'd even pull the head and check the wear on the cylinder liners and pistons. Also look at the head, what do the valves look like? Also, reading plugs will tell you a lot about how your engine is running.

And what is this I keep hearing about B20s having weak sleeves? What are they, FRP?

 

[jason.az1]

You can judge this by doing a compression test and leakdown. If these tests come out good then your motor is healthy enough. Since the motor has 150k I would recommend a full tune up while you installing all your turbo parts. Water pump, timing belt, fuel pump (Your going to have to upgrade regardless), fuel filter, spark plugs, wires and ect.
.

X2 as long as the compression and leakdown comes back good,
then you shouldn't have a problem with a good tune and breaking/installing everything in correctly.

With 2k you could build a nice b20 vtec or you could also build a nice turbo kit.

 

[corona88]

And what is this I keep hearing about B20s having weak sleeves? What are they, FRP?

I hear that b20 sleeves shift way more under WOT than those of b18b's do. Also the reason they have weak sleeve is only because they are thinner than those of B18b1. I may be wrong but thats what I've read and heard as well.

Even though the compression of an b18b1 and b20 is 9.2:1, I would go with the b18b just because of what I've read....unless you know something I dont, I'm more than willing to learn something new.

 

[HKDxSAVIER]

ok so im going to check if the engine is healthy
then if everything turns up good im going to do a full tune up and check out turbos

next question......

what turbo?
how much psi?
(daily use)

 

[98IntegraRS]

You don't go by PSI. PSI doesn't mean anything, for example 5 psi on a large turbo is nothing to 5 psi on a small turbo, it's about the right tune, and don't cheap out on parts, if your gonna do it, do it right the first time.

 

[jason.az1]

If you do a baby turbo like a t25ish range on 7psi you would be at full boost at fuck maybe 3k rpm but top end wouldnt be fun. But then again you dont rev a b20 high anyways so a smaller turbo with the tq of the b20 would make on hell of a little beast from a dig

Now Compared to a larger turbo which would spool later and hit full boost after 3krpm you would have more top end fun.

 

[Mildsquare]

Psi Does matter, but so doe cfm's and that's what people tend to forget, in the late 90's/early 2000's people were popping B20's left and right when boosting. Tuning has come a long way and it's possible to boost a b20 and still have a reliable motor. it all depends on the build,tune,driving habits, and parts that are used. Not necessarily brand vs brand, but a used parts vs new/rebuilt parts do make the difference.
The B20 motor's due have the weaker sleeves, but with a good tune from a reputable tuner will make or break the build imo.

check this out. http://www.youtube.com/watch?v=H_2PjnSs3AQ

 

[HKDxSAVIER]

i would like freeway fun
lol
so with the checking to see if the motor is healthy and it turning out YES TURBO! =]
how much would i be looking at spending if i did full tuneup and turbo kit t25
and tuning it??!?!?!?

can i go bigger turbo?
whats mid-range?

 

[jason.az1]

t25 garrets go for cheap 100-250 range depending on condition most the time you can find a eclipse owner upgrading and sell his stock turbo cheap but those are seriously a small turbo spool fast and hit boost quick
you can go larger if you want or even a t3 super 60 would be fine
I think but its more expensive. it all depends on budget. I wouldnt cheap out on the
turbo bov and waste gate and tune the intercooler and piping ebay works but the bov/wastegate and turbo and tune you want to spend bucks on

 

[heykosal]

I hear that b20 sleeves shift way more under WOT than those of b18b's do. Also the reason they have weak sleeve is only because they are thinner than those of B18b1. I may be wrong but thats what I've read and heard as well.

Even though the compression of an b18b1 and b20 is 9.2:1, I would go with the b18b just because of what I've read....unless you know something I dont, I'm more than willing to learn something new.

I mean I guess, just because the B20 has 0.2 L more displacement with the same block dimensions, same size, thickness, and bore center spacing. So I'm guessing the reason people say B20 sleeves/liners are weaker/thinner is because Honda simply bored a B18?

Does this mean B18 sleeves are weaker than B16's?

Either way, they're easier to work with than FRP.

 

[HKDxSAVIER]

i think ill get a t3 then i want the POWEERRRRRR!!!!!
haha
its going to take me a while to get though but

were should i buy the turbo and wastegate

and then what kit do i buy for piping and turbo accesories?
got a b20b on a integra 91

oh yeah and how should i set the turbo?
daily use but still good power?