What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
08-05-2005, 12:10 PM
#1
1.0 BAR
Thread Starter
Join Date: Feb 2005
Posts: 258
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
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
08-05-2005, 12:15 PM
#2
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
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.
08-05-2005, 12:17 PM
#3
3.0 BAR
Join Date: Jan 2005
Posts: 2,877
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
its sounds like there are diff ones
there is one in the classifieds but i am unsure if it big enough for my LS
08-05-2005, 01:32 PM
#4
1.0 BAR
Thread Starter
Join Date: Feb 2005
Posts: 258
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
Projekteg-which t-bird turbo were you running? Were you hitting like 7.5 or 8K rpm?
Erich
08-05-2005, 01:36 PM
#5
0.0 BAR
Join Date: Dec 2002
Posts: 0
Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
Originally Posted by projekteg
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.
08-05-2005, 01:51 PM
#6
3.0 BAR
Join Date: Apr 2003
Posts: 11,058
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.
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.
08-05-2005, 02:12 PM
#7
1.0 BAR
Thread Starter
Join Date: Feb 2005
Posts: 258
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
Erich
08-06-2005, 07:04 AM
#9
3.0 BAR
Join Date: Mar 2005
Posts: 3,161
Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
Originally Posted by Erich
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
Erich
There was a .63/.60 on a Thunderbird? I know where I'm getting my next turbo for my new project.
JP
08-06-2005, 09:49 AM
#10
0.0 BAR
Join Date: Feb 2003
Posts: 0
Re: What are reasonable hp expectations from a turboed 1.6 or 1.8 L Honda motor?
Originally Posted by random-strike
Originally Posted by projekteg
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.
If you are losing power by 6500, then you are strangling the engine with a tiny *** waste of time turbo. Also, if you run a tiny *** 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 **** 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.
