Samurai 20V Posted February 27, 2011 Share Posted February 27, 2011 Hi Ppl. I came across a SARD sports catalyser for the Supra as per the pic below. It is 75mm(3inch) into 80mm(3.2inch). Is this recommended for BPU on a J spec? Will the boost stay in check without a restrictor? Next dilemma is the oil cooler. I am fitting a Greddy Spec LS intercooler this weekend and I was planning on getting the HKS Oil cooler kit. Which side does the cooler mount on left or right? Does it not interfere with the PAS cooler pipes? Do i really need a oil cooler. Was only planning on an occasional track day,a few drags but basically street use. Would the OEM cooler not suffice? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 27, 2011 Share Posted February 27, 2011 I did loads of serious track days in my auto TT with no oil cooler. it did see 130 degrees plus oil temps, but given regular changes of decent oil it seemed happy enough, if not an ideal situation. Sometimes adding these things brings unreliability, I have seemed some simply awful installations last year, no cooler would definitely have been safer It might be cheaper, if more hassle, to get an exhaust place to weld in a UK sourced sport cat to a second de cat pipe, how much are these SARD things? Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted February 27, 2011 Author Share Posted February 27, 2011 Thanks Chris. I think I will hold off on the oil cooler for now, considering my usage it should be ok with the stock one.. I dont need a cat, this is just easier for me to source. The only other option seems to be the 2.5inch decat from Whifbitz... I am getting this SARD for the equivalent of 330pounds. Do you think boost creep will be an issue with this setup? Quote Link to comment Share on other sites More sharing options...
Nic Posted February 27, 2011 Share Posted February 27, 2011 That seems cheap for the SARD Cat they're normally twice that price. Personally I would just fit a decat pipe/restrictor ring. The HKS Oil Cooler fits in passenger side opening in the bumper, the kit includes everything for the install. The GReddy LS Intercooler includes relocation kit for the PAS cooler. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted February 27, 2011 Author Share Posted February 27, 2011 That seems cheap for the SARD Cat they're normally twice that price. Personally I would just fit a decat pipe/restrictor ring. The HKS Oil Cooler fits in passenger side opening in the bumper, the kit includes everything for the install. The GReddy LS Intercooler includes relocation kit for the PAS cooler. Do you know of any 2.5 decat I can get in Japan? So far I could not find anything Sorry for so many questions. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 27, 2011 Share Posted February 27, 2011 These are the only Japanese branded ones available still. Best to double check the part numbers are correct. 3103-RT006 HKS 2nd Decat - 75mm TF345 Kakimoto 1st Decat - 80mm http://img5.imageshack.us/img5/22/picture3t.png 21527 Blitz 2nd Decat - 80mm http://img5.imageshack.us/img5/2802/picture1qri.png Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted February 28, 2011 Author Share Posted February 28, 2011 Same research I came up with Nic..The other option was the SARD, but the diameters are also large, 75mm into the car, 80mm out.. Do you think the high flow cat of the SARD will be enought to keep the boost in check? Also with boost up, not sure on the effect to EGT. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 28, 2011 Share Posted February 28, 2011 Do you think the high flow cat of the SARD will be enought to keep the boost in check? No idea, it depends how restrictive it is, personally I'd go with the 80mm decat pipes and restrictor ring. Also with boost up, not sure on the effect to EGT. Again it depends how restrictive it is, the cat is at the turbo end of the pipe so possibly could cause an issue at higher boost. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted February 28, 2011 Author Share Posted February 28, 2011 (edited) No idea, it depends how restrictive it is, personally I'd go with the 80mm decat pipes and restrictor ring. Again it depends how restrictive it is, the cat is at the turbo end of the pipe so possibly could cause an issue at higher boost. I think I will go for the full decat, the SARD seems to be a bit of a mystery.. You say 80mm, I was going to go for the 2.5inch (63mm) from Whifbitz, thats still ok right? Thanks. Edited February 28, 2011 by Samurai 20V (see edit history) Quote Link to comment Share on other sites More sharing options...
Nic Posted February 28, 2011 Share Posted February 28, 2011 I think I will go for the full decat, the SARD seems to be a bit of a mystery.. You say 80mm, I was going to go for the 2.5inch (63mm) from Whifbitz, thats still ok right? The diameter won't make any difference, either way you'll still need a restrictor ring to restrict the speed of the exhaust flow and keep the boost in check. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted March 4, 2011 Author Share Posted March 4, 2011 These are the only Japanese branded ones available still. Best to double check the part numbers are correct. 3103-RT006 HKS 2nd Decat - 75mm TF345 Kakimoto 1st Decat - 80mm http://img5.imageshack.us/img5/22/picture3t.png 21527 Blitz 2nd Decat - 80mm http://img5.imageshack.us/img5/2802/picture1qri.png Nic,the Kakimoto site lists the 2nd decat (pic below) as the part number TF345. Not sure which is correct? Quote Link to comment Share on other sites More sharing options...
Nic Posted March 4, 2011 Share Posted March 4, 2011 Nic,the Kakimoto site lists the 2nd decat (pic below) as the part number TF345. Not sure which is correct? http://i155.photobucket.com/albums/s298/Rajeevjagath/tf345.gif Sorry that part number is wrong, that's for the 2nd decat pipe. They use to do a 1st decat pipe, but looks like it's no longer listed on their site. It's a shame if they've stopped making them as they were one of the only ones available that incorporated a flex pipe. Just had a look back through some business correspondence and found the part number for the 1st decat pipe, it is T-80S Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted March 4, 2011 Author Share Posted March 4, 2011 Sorry that part number is wrong, that's for the 2nd decat pipe. They use to do a 1st decat pipe, but looks like it's no longer listed on their site. It's a shame if they've stopped making them as they were one of the only ones available that incorporated a flex pipe. Just had a look back through some business correspondence and found the part number for the 1st decat pipe, it is T-80S Ok, no hassles.. I will check Yahoo Auction, might find one on there.. Is having no flex an issue? None of the other setups included it. Quote Link to comment Share on other sites More sharing options...
Nic Posted March 4, 2011 Share Posted March 4, 2011 (edited) Is having no flex an issue? No not really the vast majority of decat pipes don't and tend to be fine. It's used to absorb vibration to prevent exhaust welds from cracking over time, the stock 1st cat has something similar for the same reason. Edited March 4, 2011 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted March 4, 2011 Author Share Posted March 4, 2011 Thanks Nic.. You are the most help on this forum! Quote Link to comment Share on other sites More sharing options...
Guest 7w34k Posted March 5, 2011 Share Posted March 5, 2011 The diameter won't make any difference, either way you'll still need a restrictor ring to restrict the speed of the exhaust flow and keep the boost in check. I used a flexible 1st decat and a 2nd decat (referred to as "test pipe" and "front pipe" in Japan) with no restrictor ring before I did the single swap without a problem. I am still learning about turbo systems, but shouldn't the waste gates control the boost? I'm not sure if I still have them, but I could check when I get back if you are interested. Quote Link to comment Share on other sites More sharing options...
Samurai 20V Posted March 5, 2011 Author Share Posted March 5, 2011 I used a flexible 1st decat and a 2nd decat (referred to as "test pipe" and "front pipe" in Japan) with no restrictor ring before I did the single swap without a problem. I am still learning about turbo systems, but shouldn't the waste gates control the boost? I'm not sure if I still have them, but I could check when I get back if you are interested. Ok man, check it out, of you could send me some photos and check the diameters when you get back.. I think the issue with the supra stock turbos is that the wastegate is too small to keep the boost in check at higher boost levels.. Quote Link to comment Share on other sites More sharing options...
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