Tannhauser Posted January 7, 2004 Share Posted January 7, 2004 OK, this could be a long post, so bear with me. I’m interested in any opinions on a good choice of single turbo. I’m 90% certain I’m going to order a single turbo kit with a cast manifold. I know cast manifold will restrict power, but I’m interested in its reputation as a faster spooling alternative to a tubular header, claims of greater durability, and less problem with it radiating heat. The kit comes with a Precision turbo (Garrett based) Fuelling will be by 650s and uprated pump(s), an e-manage to control it is on the way, I also have water injection, FMIC, decat + exhaust. It’s an auto!! My goals are to have a to gain more power than hybrids, though not necessarily absurdly more, whilst retaining driveability. Ideally spool should be no worse than hybrids. The supplier of the kit gave me the following recommendation: "for those goals i would say that the SC61GT would be ideal... its got a brand-new Garrett "GT" 61mm compressor wheel that spools very quickly and yet offers lots of performance potential... we've seen guys with 2.0L mitsubishi's that are making 600rwhp with this turbo... and yet, on a supra it will build 6-7psi of boost by around 2750 and it will make full boost by about 3400rpms... 475rwhp at about 18-19psi should be no problem at all on a completely stock car - with the ability to tune (e-manage), an FMIC, and possibly cams, you should be in great shape... i wouldn't be surprised to see 520whp in the 20psi range... i hate to make predictions since there are so many variables involved, and the tuning and gas are so critical, but you definitely have the makings of a great combination" What do peeps make of this? I’m mindful of lots of advice on here not to go too big, especially with an auto. What would be REALLY helpful is if someone could look here http://www.precisionte.com/sportcompact.php at the different turbos made by PTE and tell me if they think there are any better alternatives. It has loads of wheel sizes etc, but I dont know enough about turbos to be able to interpret the info. Any advice much appreciated Cliff Link to comment Share on other sites More sharing options...
Dragonball Posted January 7, 2004 Share Posted January 7, 2004 Talk to Dude about his forthcoming set-up Boostlogic kit plus high stall torque converter etc etc Link to comment Share on other sites More sharing options...
Tannhauser Posted January 7, 2004 Author Share Posted January 7, 2004 Paul I like the Boostlogic kit, but it has a tubular header, whereas I want a cast manifold. But I'll have a look at the stall convertor and the type of turbo. Ta Cliff Link to comment Share on other sites More sharing options...
dude Posted January 7, 2004 Share Posted January 7, 2004 Tubular = sexy , hi stall = lets go Dude:flame Dev Link to comment Share on other sites More sharing options...
ad500 Posted January 7, 2004 Share Posted January 7, 2004 Have a look at the Induction Motorsport kit, has a cast manifold. http://www.inductionmotorsports.com/index.html?manifold.html In the process of doing the same, not sure until i drive charlies to see how the power comes in for daily driving though. Link to comment Share on other sites More sharing options...
Tannhauser Posted January 7, 2004 Author Share Posted January 7, 2004 Originally posted by ad500 Have a look at the Induction Motorsport kit, has a cast manifold. http://www.inductionmotorsports.com/index.html?manifold.html In the process of doing the same, not sure until i drive charlies to see how the power comes in for daily driving though. That's the one I'm thinking of and my quote is from Jeff at Inductionmotorsports. Is Charlie on the BBS??? Let me know what you think of it after you've had a drive! Link to comment Share on other sites More sharing options...
ad500 Posted January 7, 2004 Share Posted January 7, 2004 Charlie hasn't got this kit but a similar set up based around an Sp64 turbo. leon installed it a little while ago and is trying to sort out a drive so i can see whether i could live with it day in day out. He assures me that its a great daily driver, but we'll see. i don't know when your planning this but if i get to drive it beforehand ill post my thoughts. Link to comment Share on other sites More sharing options...
MONKEYmark Posted January 8, 2004 Share Posted January 8, 2004 im getting the boost logic kit too. looks sexy with sterling silver coated pipes. have wrote to boostlogic. had a reply back off him about shipping costs, just did not want to get the turbo that comes with kit. wanted a t72 gtr turbo for mine, its a new wheel design. just asked him for a bit of spec of turbo like spool and power ratings, not got back to me yet. also wanting payment details for bankers draft. good to see a few other supras going for more power. what turbos u going for john. to the thread starter is the cast manifold like the one on supra forums like a short stubby type. was reading a guy on supraforums has that and is making 700bhp on that manifold. Link to comment Share on other sites More sharing options...
Wez Posted January 8, 2004 Share Posted January 8, 2004 With the current exchange rate now is the time to buy as well. Link to comment Share on other sites More sharing options...
GavinL Posted January 8, 2004 Share Posted January 8, 2004 Question for those without Traders policies...how much is your insurance for a single turbo Supra over your BPU Supra? I assume it must be reasonable or you wouldn't be going for it? Link to comment Share on other sites More sharing options...
Adam W Posted January 8, 2004 Share Posted January 8, 2004 Cliff; if you're staying with the standard autobox and stall speed I would go as small as possible, ie a 58 or 61 as you suggest. I don't know what the stall rate is as standard but even with a 63mm turbo I've heard people whinge about really, really sluggish takeoffs. When you're talking about horsepower numbers with the american vendors ask them about the figures for "18psi on pump gas", because they will give you the figures for 30psi on C16 to make the turbo sound good This will be a more realistic figure for when you're running in "street trim". If you do put a high stall convertor in there then it will leap off the line, even with a big turbo; but then you have to think about whether the autobox will be overwhelmed or not. Leon has been through a fair few autoboxes so his input would be valuable. Link to comment Share on other sites More sharing options...
Wez Posted January 8, 2004 Share Posted January 8, 2004 Dunno yet, will let you know when i have it fitted. :flame Dev Link to comment Share on other sites More sharing options...
Nick Posted January 8, 2004 Share Posted January 8, 2004 I'm looking into a single using a cast manifold too. Having spoken to ChrisW at some length he's certain that this is the way to go for what *I* want to use the car for. Blasting up the drag strip is fine with a tubular, and you can let the magazines take pictures of your shiny engine afterwards, but if you want to belt it across Europe at a sustained high speed for any duration of time then the tubular isn't going to be able to cope with the abuse and will eventually fail. Proper Heat shielding is also crucial and I'm prepared to spend the extra on a MOTEC because I only want it mapped once, don't want to mess around with it once it's done. Looks like we may be after the same thing Tannhauser.... Link to comment Share on other sites More sharing options...
paulrenn Posted January 8, 2004 Share Posted January 8, 2004 Originally posted by Nick I'm prepared to spend the extra on a MOTEC because I only want it mapped once, don't want to mess around with it once it's done. Looks like we may be after the same thing Tannhauser.... Nick, this doesn't make sense to me...how can mapping a Motec once be any difference to mapping, say, an Autronic, AEM, or fiddling around with various HKS add ons, only once? You just want to pay extra? Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 8, 2004 Share Posted January 8, 2004 Nick need VVTi control Paul ( Autronic are bringing one out in a few Months) hence Motec. Monkey, PM me about your kit. BTW, the GTR wheel is old news now. Link to comment Share on other sites More sharing options...
paulrenn Posted January 8, 2004 Share Posted January 8, 2004 OK now it makes sense, but good to hear that Autronic are coming into the VVTI market to give more choice. I suppose they are aiming also at the Honda VTEC too with the same feature, he adds speculatively... Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 8, 2004 Share Posted January 8, 2004 Originally posted by ad500 Have a look at the Induction Motorsport kit, has a cast manifold. http://www.inductionmotorsports.com/index.html?manifold.html In the process of doing the same, not sure until i drive charlies to see how the power comes in for daily driving though. far from ideal runner lengths or design, but IF it fits a RHD car, and it may well NOT do this, this is the most practical none custom manifold i have seen for the JZA 80. You could do far worse than base a kit on this setup. Almost makes me wish i had a Supra, wonder if it would fit a Soarer.... Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 8, 2004 Share Posted January 8, 2004 It does look a well thought out kit and represent good VFM. As Chris said, it will be interesting to see if it fits a RHD car. All the other kits fit fine, but they are based on either HKS or GReddy manifolds, which started life as RHD kits anyway. Be interested in the results though. BTW I haven't heard of problems with the 321 stainless manifolds cracking. The lower grade stainless HKS ones are known for it though. Link to comment Share on other sites More sharing options...
Ian C Posted January 8, 2004 Share Posted January 8, 2004 Boostlogic ones are guaranteed for 3 years, if it cracks you get a new one. 3 years is good enough for me Gonna make sure my heat shielding is up to scratch though - probably an insulation blanket thingy from BL. -Ian Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 8, 2004 Share Posted January 8, 2004 Big C, Boost logic use s/s flanges as well, which I believe makes their kit unique. I have the manifold, & DP wrapped. The exhaust housing ceramic coated, and a BL blanket, and it still gets bloody hot. Every little helps though. Link to comment Share on other sites More sharing options...
Ian C Posted January 8, 2004 Share Posted January 8, 2004 I thought it was a bad move to wrap the manifold, as it can't handle the trapped heat? What did you use to wrap it and the downpipe (and have you got any left over? ) -Ian Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 8, 2004 Share Posted January 8, 2004 Always wrapped them, never had a problem. Think Automotive sell a nice wrap. Nice little tip, apply damp/wet otherwise you'll be itching for days ( not that you aren't already Ian:p ) Link to comment Share on other sites More sharing options...
Tannhauser Posted January 8, 2004 Author Share Posted January 8, 2004 Lots and lots of useful feedback, thanks! Chris The RHD thing is the one thing that worries me. The maunfacturer has asked me to take photos of the turbo side of the engine bay. He doesn't know if there are issues or not. Can you give me some specific areas or problems I could alert him to? I know someone else in the UK has ordered one (don't know who) but that doesn't really help. Can anyone point me to a good image of a RHD engine bay _would it need to be part disassembled ?- that might help the guy Adam According to the manufacturer, "we did a local car with our kit and an SC61 that hit 450rwhp on pump gas (and stock ECU and MAF) at around 19psi but the stock 90k mile clutch was slipping horribly... " They posted a dyno using a bigger turbo and were at pains to point out the boost pressures (lpretty low), gas used, details of car, the fact that intercooler wasn't iced, etc, etc) I'll take a look at the slightly smaller turbos, thanks. Monkey Yes, it's a stubby manifold. Haven't deen the suprastore one, so can't comment. Nick Agreed our goals sound similar. Top end power is not much good to me. I know it's kind of fighting against the supe's nature to want it to have more mid-range pull, but perhaps if mods are carefully chosen. Also the car is presently my daily driver......though maybe not forever. I'm looking at boostlogic's inconel heat shield and/or blanket if necessary, but the cast manifold should radiate less heat anyway Keep 'em coming, all good stuff Cheers, Cliff Link to comment Share on other sites More sharing options...
Guest Terry S Posted January 8, 2004 Share Posted January 8, 2004 Originally posted by Tannhauser but the cast manifold should radiate less heat anyway Keep 'em coming, all good stuff Cheers, Cliff Get the exhaust housing coated if it's not already. the Iconel blanket is OTT. The normal one works well enough. Link to comment Share on other sites More sharing options...
Tannhauser Posted January 8, 2004 Author Share Posted January 8, 2004 Thanks Terry. Chris and all other tech bods -Jeff from Induction has asked to be directed to this thread to try and sort out this RHD fitting issue - unlike me, he knows what to ask! Link to comment Share on other sites More sharing options...
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