What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

Just wondering what most people are shooting for with their turbo setups.
This started with doing some calculations of how my favorite IHIs from T-birds would work on 1.6 and 1.8 liter motors. Seems that they will not be too efficient at boost levels above maybe 13-14 psi. On a 1.6-1.8 liter motor, it appears you could get about 210-220 hp at 7000 rpm. How high do those motors rev anyway?
For 20 psi these things are totally unsuitable.
Erich

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

i made 240whp with a t-bird turbo at only 11psi, and that was even with full stock exhaust and cat, so i'm sure it would have been closer to 260whp with a nice open exhaust. you say "1.6 and 1.8" liter motors, but it depends, the 1.6's come in sohc or dohc, the dohc 1.6 (b16) rev's up to about 8100 in stock form, the 1.8's are dohc, but come in vtec and non vtec, the non vtec 1.8 (b18a/b) rev's to about 7200 i believe, and the vtec version (b18c) also rev's to about 8100. on a b16 or b118c, you could probably squeeze 300whp out of one of the bigger t-bird turbo's.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

i was wondering about the size of an IHI t-bird snail??
its sounds like there are diff ones
there is one in the classifieds but i am unsure if it big enough for my LS

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

With those 7-8K redlines, it seems like the larger T3s from the t-birds would be needed.
Projekteg-which t-bird turbo were you running? Were you hitting like 7.5 or 8K rpm?
Erich

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

LS's redline at 6800 and loose power well before that.... 6500

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

yeah, i couln't remember where they redlined, i used to have one, but forgot.

erich- i was using the garrett .63/.60, they come on the 84-86 turbo coupes, it was still making power at 8100, but i didn't rev it any higher.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

That must be pretty cool pulling under boost up to 8100. Seems like those 63/60 garretts are really a great all around turbo. They are perfect on a TT 5.0 setup too. Block-splitting power as they say (5.0 blocks get iffy over 450 hp).
Erich

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

my buddy's working on one right now ;D

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

There was a .63/.60 on a Thunderbird? I know where I'm getting my next turbo for my new project. ;) ;D


JP

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

Or else they redline at 7200, depending on era, and the power from 6000-7000 rpms is flat - but not dropping.

If you are losing power by 6500, then you are strangling the engine with a tiny ass waste of time turbo. Also, if you run a tiny ass waste of time turbo, you start pumping the engine full of hot air, strangling the engine so it can't get rid of all the overly hot exhaust gasses, and melt it down when only making a piss poor tiny amount of power. When a larger turbo, making more power, would have been safer. IHIs are a waste of time, unless you're trying to boost a 1.2 liter like the Turbo Justy.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

PFFTT, Good Luck Finding One............

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

Is that right,m man? Hard to find one?


JP

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

they're not 'that' hard to find. my buddy just picked up a MINT one (1 of 2) for his TT 5.0 project for 125 bucks shipped! beautiful turbo, no play, very clean, came with outlet and inlet flange as well. back in the day when i used one, i got it for about 110 shipped and it was pretty mint. you can find them pretty easily, just not as easily as some of the others.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

What you guys got was lucky.
I literally have access to a turbo a week (if not more) from every type of vehicle ever offered from the factory with a turbo. I rarely and I do mean rarely, come across any T3 .60/.63's any more.
I have a pair if GN T3/T4 units on my TT5.0 and a .60/.63 unit on my 2.3T mustang but I didn't come across any of them easliy. That's saying alot when you consider the fact that I probably possess more then 60 turbos per year.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

My LS hits crapper at 7200 and with a T25 the thing pulls all the way.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

Your serious? T25 doesn't lose any boost on and LS at 7200? Does it hit like 3psi at idle? Those things are small.


JP

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

damn, you give me a PM the next time you feel like getting rid of some turbo's, I'll give them a happy home.

The T-bird IHI works great with my 8 valve 1.9 Escort, start to make a ton of power at 3000 RPM's and hold's it to about 5.5-6k, that's all my motor is good to anyway's. Makes 212whp and 262 tq.

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

I found it was easier to find the .60/.63 from a nissan 280z or early 300zx just for a head up. The only pain in the ass part is the wastegate housing. 7bolt not 5. Fine if your running external though

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

I did not realize they were on those nissans. I know a yard that has a bunch of them sitting around. Likely few are turbo tho.....
Erich

Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
 

There just kinda a bitch to get out off. Lots of crap in the way.

Mine was of an 82.