hodge Posted September 3, 2007 Share Posted September 3, 2007 Couple of quick questions folks. My turbo oil seals have gone on my turbos so instead of replacing them im gona go single when I take the car off the road in the winter. I have decided to get an XS-Power kit. The turbo is a GT45. I was told at full boost it hits 2.2 bar. What boost is safe to run on standard internals? My plan was if it is possible to run the turbo with a ristrictor ring at 1.2 bar and set the overtake boost on at 1.6 bar on my E01. This is until I can buy the internals and build a new engine. Finally what size injectors should I use for this Turbo. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted September 3, 2007 Share Posted September 3, 2007 I would not go past 1.4 bar max and run at 1.2 for daily use, whoever is going to do the install should advise you to the health of your engine as well as it is no good adding a single to a tired engine and expecting it to last, I would fit 650 injectors and also look at ECU or fuel controls as well, it is a job that has a habit of costing way above what you would expect and if done on the cheap can be more costly in the long run Who is going to do the install ?? Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted September 3, 2007 Share Posted September 3, 2007 Just noticed you are on an Auto box as well, this can only handle 500 bhp or so and in the case of mine started slipping after constant 500bhp use, I went 6 speed after that, but again you should consider the health of your auto box and ensure it can take the power increase Quote Link to comment Share on other sites More sharing options...
Pig Posted September 3, 2007 Share Posted September 3, 2007 Have a search about. the gt45 is a MASSIVE turbo. It will not be nice to drive on an auto. your better off getting a t61 and running 1.2 - 1.4 bar. p.s some people have had lots of problems with the XS power kit. Quote Link to comment Share on other sites More sharing options...
Homer Posted September 3, 2007 Share Posted September 3, 2007 Have a search about. the gt45 is a MASSIVE turbo. It will not be nice to drive on an auto. your better off getting a t61 and running 1.2 - 1.4 bar. p.s some people have had lots of problems with the XS power kit. Completely right there Jon They are a huge turbo and very late spooling turbo compared to the smaller T61 and T67's. It's only really suitable for drag racing. I think it was Steve Whittaker who told me it spools around 5 to 5.5k rpm in the lower gears. At 1.6 bar it's should be flowing enough to produce well over 600bhp, so you would need some serious fueling upgrades to manage that. Even at 1.2bar it will be putting out a lot of power, certainly more than your box could take. Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 3, 2007 Share Posted September 3, 2007 I have decided to get an XS-Power kit. Maybe rethink the XS power choice. Do a search on here and make your mind up The turbo is a GT45. Are you sure? The XS power stuff has some varied interesting names and it's either a proper GT45, or what they think is a GT45 'equivalent' in some fashion, or it's called a GT45 but has nothing to do with the Garrett one, like their T60's are smaller than a proper T57 etc etc. I was told at full boost it hits 2.2 bar. That's rather meaningless, is that the peak efficiency point? Seems high, it is absolute pressure? If so that'd be 1.2bar of boost by our usual measuring, which then seems on the low side for a GT45... What boost is safe to run on standard internals? A well mapped 1.4bar is accepted generally as the highest you want to go on a daily driver with pump fuel. It can vary turbo-to-turbo what you can achieve but that is a good starting point. My plan was if it is possible to run the turbo with a ristrictor ring at 1.2 bar and set the overtake boost on at 1.6 bar on my E01. You won't need, or at least really really shouldn't need, a restrictor ring when you convert to single turbo. Your external wastegate should be sized correctly to control the boost even with the most free flowing exhaust system available. You can set different boost levels with the E01, say wastegate, 1.2bar, 1.4bar so you can vary it according to mood or weather or whatever. I wouldn't have much truck with "overtake" or "scramble" boost as either your setup can take x boost or it can't. Running boost beyond what it can take for a short period seems chancy to me. This is until I can buy the internals and build a new engine. Finally what size injectors should I use for this Turbo. You may not need a new internal setup as the stock bottom end, when looked after, holds 500+bhp day in day out. There are plenty of examples on here. In fact opening the block up seems to cause most problems Injector size is based on predicted power output, so go from there. 650cc is a good start point. -Ian Quote Link to comment Share on other sites More sharing options...
Homer Posted September 3, 2007 Share Posted September 3, 2007 Ian, here's one. It's a big old truck turbo: http://cgi.ebay.co.uk/2JZGTE-Toyota-SUPRA-GT45-Turbo-KIT-MKIV_W0QQitemZ250158941831QQihZ015QQcategoryZ38786QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Quote Link to comment Share on other sites More sharing options...
Wez Posted September 3, 2007 Share Posted September 3, 2007 Thats a big claim, the quickest UK supra, surely thats not right, i have never seen that motor before. Quote Link to comment Share on other sites More sharing options...
Homer Posted September 3, 2007 Share Posted September 3, 2007 Thats a big claim, the quickest UK supra, surely thats not right, i have never seen that motor before. It's certainly an incorrect claim! It's Steve Whitakkers (old) car. Quote Link to comment Share on other sites More sharing options...
stupra Posted September 3, 2007 Share Posted September 3, 2007 If your an auto mate i'd go for a T61 or GT35 sized turbo, 650 injector's and some extra cooling on the auto box. A well set up T61 is a quick road car, and isn't laggy. You'd need a high stall if you want a bigger turbo but didn't want massive lag. From what i've read the XS kit doesn't have a very good rep, but not having used it, I couldn't say i'd know personally. A smaller sized turbo would also mean your engine would be fine in standard trim, (if in good condition). Quote Link to comment Share on other sites More sharing options...
Wez Posted September 3, 2007 Share Posted September 3, 2007 I have been thinking about this recently, what is it that kills the auto box, torque or power, a small turbo generates alot more torque in a more aggressive way than say a T67 which is more gradual. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted September 3, 2007 Share Posted September 3, 2007 I have been thinking about this recently, what is it that kills the auto box, torque or power, a small turbo generates alot more torque in a more aggressive way than say a T67 which is more gradual. In my case the auto box was fine when driving around town, smooth changes and good feel, but up at 1.2 bar + when the car reached 400 bhp the box started to slip, beyond that and it was all slip and no further gains, thats why i decided to go 6 speed before the thing gave up completly, I did look at BL and TH400 but went down the manual route instead as this has proven 500BHP + as standard, after seeing the BL auto box at the pod this year I think that is a very good option if you really need or want an auto IMO Quote Link to comment Share on other sites More sharing options...
hodge Posted September 3, 2007 Author Share Posted September 3, 2007 The car itself doesnt get thrashed around and TBH it only get used every now and then. More of a show car really. I picked this turbo Kit for a couple of reasons really. 1) I thought it was quite reasonably priced. 2) If the car is mainly used for shows ETC, I liked the idea of the turbine housing outlet being 4.17 inches, which i would have polished/chromed. Im not too concerned about abit of turbo lag really but stil want to be able to drive it. I spoke to Captain Chaos who has purchased this turbo kit and it was he who explained about it hitting 2.2 bar at full boost. Im going to do the install myself. I know my engine it fit and well cos I rebuilt it about 3 months ago myself. Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted September 3, 2007 Share Posted September 3, 2007 2.2 bar on a standard engine with a turbo this size and it will be a case of when it goes bang not if IMO, why would you want to fit a big turbo just for show? Maybe you should drive a laggy car to feel how frustrating this car be, I have owned a T88 car and the turbo lag drove me crazy, not worth the hassle for show looks unless you plan to drag race the car Quote Link to comment Share on other sites More sharing options...
hodge Posted September 3, 2007 Author Share Posted September 3, 2007 Point taken mate. How much will I be looking at for a T61 ot a GT35 turbo on its own or a kit do you have any idea. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted September 3, 2007 Share Posted September 3, 2007 Point taken mate. How much will I be looking at for a T61 ot a GT35 turbo on its own or a kit do you have any idea. A quick search will reveal all mate. Parts cost me $7300 shipped and fitting/mapping will be a lot extra. I bought the PHR stage 1 kit and their stage 2 fuel kit. Depending on your budget/needs there are infinite possibilities available to you. You just need to decide which is best for your driving. You will also need some other supporting mods such as fuelling control/ECU, clutch/gearbox upgrade, FMIC or SMIC, FPR etc. Quote Link to comment Share on other sites More sharing options...
hodge Posted September 3, 2007 Author Share Posted September 3, 2007 I think were getting a little carries away here. $7300 !!!!!!!!!!!!!!!!!! You cant mean to tell my to do a basic T61 single turbo conversion cost 3 and a half grand. Quote Link to comment Share on other sites More sharing options...
RobSheffield Posted September 3, 2007 Share Posted September 3, 2007 I think were getting a little carries away here. $7300 !!!!!!!!!!!!!!!!!! You cant mean to tell my to do a basic T61 single turbo conversion cost 3 and a half grand. Do it properly or stick some stock twins back on again... I typed out a full reply and then realised you are on JNE so decided not to bother, some folk just cant be told Quote Link to comment Share on other sites More sharing options...
stupra Posted September 3, 2007 Share Posted September 3, 2007 Point taken mate. How much will I be looking at for a T61 ot a GT35 turbo on its own or a kit do you have any idea. I've a brand new BL T61 for sale, sorced by Terry S a couple of month's ago, it's in the for sale section £450 + p&p or pick up from Phoenix. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted September 3, 2007 Share Posted September 3, 2007 I think were getting a little carries away here. $7300 !!!!!!!!!!!!!!!!!! You cant mean to tell my to do a basic T61 single turbo conversion cost 3 and a half grand. I absolutely can say that mate. Like Rob says, do it properly if you do it at all. Or just buy a T51 and keep the stock 440s, map to 1.4 bar and watch the fireworks in your rearview mirror when it all goes bang. It seems to me that you aren't after a single for the right reasons from previous posts so why not get the twins etc all polished and leave it at that? Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 3, 2007 Share Posted September 3, 2007 I think were getting a little carries away here. $7300 !!!!!!!!!!!!!!!!!! You cant mean to tell my to do a basic T61 single turbo conversion cost 3 and a half grand. That's funny because I had the same reaction. I couldn't believe the cost was that ridiculously low If you choose your turbo because it's got a big exhaust housing that will look good polished I'm gonna delete the thread in disgust -Ian Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted September 3, 2007 Share Posted September 3, 2007 That's funny because I had the same reaction. I couldn't believe the cost was that ridiculously low MVP really are legends IMO. That price didn't include import tax (£175) and I got a special deal that they have on currently Quote Link to comment Share on other sites More sharing options...
Nic Posted September 3, 2007 Share Posted September 3, 2007 You cant mean to tell my to do a basic T61 single turbo conversion cost 3 and a half grand. To do it 'properly' will cost at least 2 to 3 times that amount minimum. Quote Link to comment Share on other sites More sharing options...
Ian C Posted September 3, 2007 Share Posted September 3, 2007 MVP really are legends IMO. That price didn't include import tax (£175) and I got a special deal that they have on currently Oh not knocking you, just that (and you did mention it) there is the fitting, mapping, fettling, bug fixing, and also any extra supporting mods like clutch, bov, extra fuelling gubbins, FMIC, welding and cutting etc etc that bites us on the budgets mid-build Figure 7 grand and you might have change at the end of it. And no, that's not getting carried away Choke on the mere kit price and I'd bail out now and get dremelling the stockers. -Ian Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted September 3, 2007 Share Posted September 3, 2007 Figure 7 grand and you might have change at the end of it. And no, that's not getting carried away Choke on the mere kit price and I'd bail out now and get dremelling the stockers. -Ian £7k+ is much more realistic!! Just ask my debit card EDIT: Polished stockers sounds perfect for this guy Quote Link to comment Share on other sites More sharing options...
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