SU'dCrazy280 Posted October 22, 2005 Share Posted October 22, 2005 I was looking through my z folder and i found this picture that i saved a while back, i found it on the internet somewhere. I was just wondering if whoever thought this up is just nuts or could it possibly work. thanks Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 22, 2005 Author Share Posted October 22, 2005 never mind i don't know how to post a picture on these freaking macs does anyone Quote Link to comment Share on other sites More sharing options...
The Woj Posted October 22, 2005 Share Posted October 22, 2005 Go to www.imageshack.us and click browse. When you've done that hit host it and it will upload the picture to their site and give you a nice forum link to copy and paste. If you want to, you can also register with them for free and they will give you a directory where you can review all the pictures you have submitted. It will also create code for multiple pictures in html or forum. That's how I do it atleast. -Greg Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 23, 2005 Author Share Posted October 23, 2005 here it is, sorry, you can also find it on google http://img404.imageshack.us/img404/2945/suturbo3tu.png Quote Link to comment Share on other sites More sharing options...
PUSHER Posted October 23, 2005 Share Posted October 23, 2005 Dont really know anything about carbed turbo setups, but shouldnt the jpipe connect to where the airfilter is? And wouldnt that be a draw through setup? Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 23, 2005 Author Share Posted October 23, 2005 I don't know a whole lot about carbed turbos either, but the J-pipe doesn't look like it is drawn very well, it wouldn't hook up where the air filter is connected, but on the compressor outlet. Quote Link to comment Share on other sites More sharing options...
PUSHER Posted October 23, 2005 Share Posted October 23, 2005 Yea, took me a sec, but after I posted I figured how it worked. Compresses through carbs into into head. Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 24, 2005 Author Share Posted October 24, 2005 Yeah, I am just thinking that I wouldn't use a stock 280ZX turbo, but something smaller like an old Subaru turbo. My buddy told me that if you have that much boost with carbs, you need a fuel pressure regulator that measures your psi and adds more fuel when you are at high rpms and at high boost, but then adds less again when you are at stock idle. I don't really want to use that crazy regulator, if I can, I just want to use stock parts. Should I try it with a small turbo? I could easily conjure up some parts at the junkyard, and weld up a mounting plate to the 280ZX exhaust manifold, and weld up the turbo outlet to the SU's. I don't know if it is just a crazy idea, but is it worth a try? I could probably do it for like a hundred bucks. Would I need anything else? Thanks. J.T. Quote Link to comment Share on other sites More sharing options...
zeiss150 Posted October 24, 2005 Share Posted October 24, 2005 The Book Maximum boost by Corky Bell (great book!) Has a chapter on carb'd turbo systems ... its not the best idea... but it is doable. If I remember correctly they don't work well with turbo systems because there is limited controll over the air fuel mixture, you need special needle grinds, also all of the "cold start" problems that carbs have are made 10 times worse because of the increased air. I guess it would be a "fun" project but for performance and reliability ... probably not the best plan. I think there was a picture in the book of a turbo, carb, Z engine but it wasn't with SU's... I think they were using webbers. Good luck, Let us know if you decide to go for the carb'd turbo! and take lots of pictures. Rock on Z people P.S. if you don't want to buy the maximum boost book just do what I did ... check it out at your local library! Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 24, 2005 Author Share Posted October 24, 2005 Yeah, maybe it would work better using a four barrell set up though. Holley Red fuel pump, holley regulator, custom intake manifold, a holley carb bonnet, small turbo, 280ZXT exhaust manifold. I don't know, I'll look at the book and check it out, I'll figure something out for a crazy idea. I have seen tons of V8s with Vortechs with carb bonnets. If a 4 barrell can handle that much boost, I think it could handle the amount put out by a small turbo. J.T. Quote Link to comment Share on other sites More sharing options...
zeiss150 Posted October 25, 2005 Share Posted October 25, 2005 are you just trying to save money buy using a carb? cause I don't think it would be any cheeper. the Holly is a down draft carb and the SU's are side draft and I think I remember reading somewhere on here that the down draft carbs suck for the L28 engine. You'll also need a special intake manifold MSA sells one for $440.00 plus thottle brackets for $60 bucks. You can pick up an N42 FI intake manifold from a 78 z for $35 at a pick a part. Good luck J.T. Quote Link to comment Share on other sites More sharing options...
SU'dCrazy280 Posted October 25, 2005 Author Share Posted October 25, 2005 Well, I know I would need a special intake, and I wouldn't buy the MSA one, I would buy the arizonazcar.com one which is 259.00, or just make one out of stainless steel. I already drew up the plans for one. I wouldn't use a holley carb though, I would now probably use an edelbrock 500cfm performer. But I don't even know if this is a good idea yet, and the turbo idea is just a thought for me but I will either go SU, or 4 barrell. My FI system is crap, and I have a wiring problem hidden in my harness that 3 different shops can't find, so I AM gonna carb my car one way or another. Quote Link to comment Share on other sites More sharing options...
zeiss150 Posted October 25, 2005 Share Posted October 25, 2005 have you tried megasquirt? It's about $200 and it will cure all of your FI problems. With Megasquirt you can pull your old FI harnes and through it in the trash. I know you're really into the carb idea but I would encourage you to look into the FI options because if you did decide to go turbo and you had a carb setup... well ... they seem to be a bad combo. right now I'm running an L28 with N42 head, headers, electronic dizzy, and SU's. It runs really well but I want to go turbo ... so ... FI it is. Also cold starts suck and carbs have that "lumpy" idle. If you ARE going to go carb like you say then I would go with the SU's. Just buy the SM needles and they perform really well ... better than any downdraft carb. if you really need more from your carbs than the SU can deliver, then try tripples or Jaguar SU's. I hope I'm helping you with the limited info that I have. Rock on Z people Matt- Quote Link to comment Share on other sites More sharing options...
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