From: "Sean Bybee" To: dtlc@helios.net Date: Fri, 20 Dec 2002 22:04:04 -0900 Subject: [DTLC] Diesel exhaust Reply-To: dtlc@helios.net Dear list, According to a Dick Donnelly, who has done a 1HD-T swap into a 60, I will need to upgrade my exhaust. First off, what is the stock exhaust pipe size of an FJ60? Second, what is Toyota's stock exhaust size for say a HJ60, HZJ80, HDJ80, etc.? Or at least the pipes attached to the 13B-T, 12HT, 1HZ, and the 1HD-(F)T(E), as these are the potential engines I want to use for a swap. Also, does anybody have a 13B-T or a 12H-T in their Cruiser? How's the reliability and what kind of fuel economy are you getting? I'm kind of leaning towards either one of those because I would think the swap would be easier. Thanks, Sean (The US Diesel Cruiserhead wanna-be!) sean.bybee@gci.net From: w.j.markerink@a1.nl To: dtlc@helios.net Date: Sat, 21 Dec 2002 19:26:39 +0100 Subject: Re: [DTLC] Diesel exhaust Reply-To: dtlc@helios.net On 20 Dec 2002 at 22:04, Sean Bybee wrote: > Dear list, > > According to a Dick Donnelly, who has done a 1HD-T swap into a 60, I > will need to upgrade my exhaust. First off, what is the stock exhaust > pipe size of an FJ60? Second, what is Toyota's stock exhaust size for > say a HJ60, HZJ80, HDJ80, etc.? Or at least the pipes attached to the > 13B-T, 12HT, 1HZ, and the 1HD-(F)T(E), as these are the potential > engines I want to use for a swap. Don't think stock diameter varies much....I'd say 2" for most of them. While you definitely want at least 2.5". The problem with larger (still better!) diameters is that the muffler shop can no longer bend that stuff, but must cut and weld ready-made bends....which means it becomes less strong on the welds. Note that I am talking about SS only, you don't want to spend all the time/tinkering/energy in an ordinary steel pipe that rots away in 5 years. Also note that the stock routing won't allow more than 2.5", unless you weld it completely on the vehicle, no separate sections, no means to remove it later without cutting. Not sure what a better/shorter routing (front-of-rear-wheel exit?/rear-of-rear-wheel-exit?) will bring you here.... > Also, does anybody have a 13B-T or a 12H-T in their Cruiser? How's > the reliability and what kind of fuel economy are you getting? I'm > kind of leaning towards either one of those because I would think the > swap would be easier. 12H-T is said to get 1:10-12 (l/km), don't think the 13B-T is much better....1HD-T is definitely worse (if only because people can't control their right foot....it's just too damn fun to floor it....:)) FWIW: complete & not-too-bad BJ-71/74's with 300k km's can be had for US$5k around here....HJ-61's are US$10k. -- Bye, Willem-Jan Markerink The desire to understand is sometimes far less intelligent than the inability to understand [note: 'a-one' & 'en-el'!] From: andre@collegeinternetsolutions.com To: Subject: Re: [DTLC] Diesel exhaust Date: Sat, 21 Dec 2002 14:25:44 -0700 Reply-To: dtlc@helios.net I used 2.5" with a 2H and turbo and it worked great. Today the turbo is putting out much more power than a stock 12H-T or 13/14B-T and it seems to breath excellently in all situations. We also used a straight pipe magnaflow muffler and it really let the exaust through, much better that the 2 (or 2.25"?) pipe it had originally. Cummins,' for example, come with stock 2.5", they only look huge because of a cosmetic addition at the end of the pipe. I personally would go 2.5", small enough to fit everywhere but plenty of room for breathing. You can get away with using the stock exuast. For example, AXT turbo kits for the 3B and 2H are both designed to bolt to back to the stock 2-2.25" exhaust, which is the same size as 2F exhaust. However, make sure you also install a EGT gauge as well as a boost gauge, especially if you start tweaking with the boost and fuel. Andre Diesel Website: http://www.collegeinternetsolutions.com/cisautoweb ____________________________________ Andre Shoumatoff - (435) 645-3914 College Internet Solutions, Park City, UT http://www.collegeinternetsolutions.com From: Greg Goulden - Western Farm Service P/L To: Subject: Re: [DTLC] Diesel exhaust Date: Mon, 23 Dec 2002 08:35:37 +1100 Reply-To: dtlc@helios.net |-----Original Message----- |From: dtlc-owner@helios.net [mailto:dtlc-owner@helios.net]On Behalf Of Sean Bybee | |Dear list, | |According to a Dick Donnelly, who has done a 1HD-T swap into a 60, I |will need to upgrade my exhaust. First off, what is the stock exhaust |pipe size of an FJ60? Second, what is Toyota's stock exhaust size for |say a HJ60, HZJ80, HDJ80, etc.? Or at least the pipes attached to the |13B-T, 12HT, 1HZ, and the 1HD-(F)T(E), as these are the potential |engines I want to use for a swap. Sean, For any of the TD 6 cylinders I wouldn't go any less than 3". I have a 2.5" mandrel bent system and with the old engine (1HZ turbo) could still register 4psi back pressure (down from the OE system at 8psi). I haven't measured this with the 1HD-FT in place yet. As WJ mentioned, finding someone who can mandrel bend 3" to suit is a hassle over here in Oz, and 3" requires careful fittment to avoid ratttles and is a little harder to keep quiet (resonance). Stock exhaust size for the 1H* engines is ~57mm (or 2.25"), the turbo's very front section is 2.5" IIRC. The reason you will need to upgrade the exhaust if fitting a 1H* engine into a 60 is because the exhaust runs down the RHS (like 1FZ* too), not the LHS like the 2H/12HT/3F. This is one of the reasons I mentioned for looking at swaping a 12HT instead! :-) Regards, Greg Goulden 2000 HDJ105 Melb. AU. From: andre@collegeinternetsolutions.com To: Subject: Re: [DTLC] Diesel exhaust Date: Sun, 22 Dec 2002 14:40:38 -0700 Reply-To: dtlc@helios.net > The reason you will need to upgrade the exhaust if fitting a 1H* engine into > a 60 is because the exhaust runs down the RHS (like 1FZ* too), not the LHS > like the 2H/12HT/3F. This is one of the reasons I mentioned for looking at > swaping a 12HT instead! :-) It's actually exactly the opposite here. We could just barely fit 2.5" past the steering with the turbo on the 2H. So ideally if in North America, you'd want the 1H instead...! Andre