Big Mark Posted July 21, 2015 Share Posted July 21, 2015 Going to give in to temptation sooner or later and go single, so will want to build a fast single for the street, I've a target of 600hp in my head. So thought I'd stick my draft parts list (as it stands) and questions on here so that when I do it I know exactly what parts to go. Below I've compiled 2 list of parts, parts in Bold are what I've already acquired. The list is split into two, some I see as essential for the build and others as extras I'd like to have. Essentials Turbo kit from Whifbitz or SRD, Manifold Zirotec coated. 4 inch outlet. PT6062 GEN2 Precision Turbo (A/R tbc) Down pipe Heat wrap * Syvecs S6GP ecu * Syvecs I/O expander * Pierburg boost solenoid * 3.5 Bar map sensor/loom NTK Widebank O2 sensor *[/b Syvecs oil/fuel pressure sensors *[/b Syvecs transmission fluid temp sensor EGT sensor *[/b Wideband knock sensor *[/b Fuel Pressure Regulator *[/b Fuel Rail *[/b [b]680cc injectors NGK iridium grade 8 plugs *[/b Whifbitz front mount intercooler Walbro 450LPH fuel pump Two transmission coolers. Mishimoto Aluminium x-line radiator Extras I'd like/want *[/b HKS 264 Cams *[/b Adjustable camshaft pullies *[/b Syvecs Toucan Oil sandwich plate SRD Stage 3 built auto box Oil cooler 4inch Whifbitz exhaust. *[/b Greddy style inlet manifold *[/b Longer Throttle Cable Turbo blanket *[/b Q45 throttle body (or LS3 and go DBW) *[/b TPS Adaptor Fuel Pulsation Damper bypass Battery relocation kit Below I've got some questions. What do you think guys, any useful inputs welcome?............. 1. Below 3k rpm how does a single compare to BPU? Will it feel like an NA? Anyone got a dyno chart of BPU vs a small single? This is my one concern about going single. 2. Have I forgotten/missed any parts from the list? No I will not be doing a manual conversion 3. Guessing Turbo Kit choice is just a matter of personal preference? I'm thinking of Whifbitz or SRD or possibly PHR Street Torque Turbo Kit, though guess HKS is worth considering. 4. Do I go for a screamer pipe or not, not actually heard one still? 5. Will the PT6062 be the ideal turbo and are PT better than Garrett or other makes? They seem to be the most popular turbo at present. 6. What A/R Ratio should I go for, specifically if I go for the PT6062. Link here: http://www.precisionturbo.net/news/Press-Release--New-GEN2-PT6062-CEA%C2%AE-Turbocharger-Introduced/293 7. Divided or Undivided. Am I right in thinking Divided aids spool? 8. Any other sensors needed, and are ones on list fitted by just replacing existing or are modifications required (boss needed on exhaust manifold). 9. I'm considering splitting the build in 2 phases, fitting components with a * in Phase 1 and leaving the single conversion and other bits until Phase 2, sometime in the following 12 months. As am curious as to what I could get from a TT with 264 cams, syvecs and greddy inlet manifold. Other than 2 lots of mapping costs is there any other downsides to splitting the build? Should any of the others parts not marked with a * be fitted during Phase 1? Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted July 21, 2015 Share Posted July 21, 2015 680cc injectors to get 600bhp might not be achievable. I would of gone maybe 750cc or 850cc 1. I have recently gone single and I wouldn't change it, I honest don't feel that slow at the low end of the RPM. No chart sorry 2. 600bhp on a stock auto box? Don't think it can cope for long 3. There are many out there, if you are worried about the spool time there are alot of single built threads maybe worth having a read through them and see how they rate the turbo there are using and check the dyno graph. 4. screamer pipe. YES! lol plus there's less custom fabrication needed otherwise you need to vent it to the downpipe. You don't want the waste gate to dump into the the engine bay. 7. Divided or undivided makes no difference. Personal preference Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 21, 2015 Author Share Posted July 21, 2015 Injectors came up at a good price. Keep reading different stories, one was 1cc per hp, another was divide cc by 5 and multiply by number of injectors......... 2. Not too worried about the autobox, hoping Syvevs and twin coolers will let it last a while and when it lets go I'll go for a SRD built box. 4. Thought that kits such as the Whifbitz already has the wastegate venting into the downpipe, no fabrication needed? Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted July 21, 2015 Share Posted July 21, 2015 Typical injector limits for duty cycle is 80-85%. If you are running over this it's time to look for a larger injector. 680cc injectors trying to reach 600bhp is above that limit but if you speak to different people, each will have different views and opinions and this is where the internet some times can confuse people. Go and speak to your mapper he will inform you what injectors you need for your power goals.. I am not similar what parts comes with Whifbitz kits Also you want to add the turbo blanket to the parts you need Quote Link to comment Share on other sites More sharing options...
Noz Posted July 21, 2015 Share Posted July 21, 2015 Jekyl made 385hp with OEM 330cc injectors. Load's people people these days making 1hp per cc. 680cc injectors on stock pressure 40 psi for 600hp is 88% duty cycle if you go 1hp - 1cc. with an extra 2psi fuel pressure his new injectors are rated safely at 700/720cc. That's then at 85.71%. So if between your advice of 80-85% he isn't that far off when you calculate it out. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted July 21, 2015 Share Posted July 21, 2015 Similar goals to me I'm going with a Garrett GTX3576R instead of a Precision one, purely because my car is a daily and Precision don't have any UK service centers. I'm aiming for over 550hp on pump fuel and over 600hp with ethanol. I'm also going DBW, but for me it is mainly to gain cruise control. Quote Link to comment Share on other sites More sharing options...
RobUK Posted July 21, 2015 Share Posted July 21, 2015 Interesting to see what comes up in this as I've started talking to LeeP at SRD about something similar.... Quote Link to comment Share on other sites More sharing options...
Nic Posted July 21, 2015 Share Posted July 21, 2015 (edited) 1. Below 3k rpm how does a single compare to BPU? Will it feel like an NA? Anyone got a dyno chart of BPU vs a small single? This is my one concern about going single. Garrett GT3582R (see my garage for full spec) overlayed with a BPU TT dyno (red line), you only notice lag pulling away from a standstill, once moving above 2K rpm power delivery is instantaneous. 2. Have I forgotten/missed any parts from the list? No I will not be doing a manual conversion I'd add a good quality turbo blanket to the essential list. BOV and weld on boss if you want one. 3. Guessing Turbo Kit choice is just a matter of personal preference? I'm thinking of Whifbitz or SRD or possibly PHR Street Torque Turbo Kit, though guess HKS is worth considering. All good quality brands. The HKS kit may be the most expensive but includes absolutely everything needed, down to the last nut bolt, gasket, bracket, heat proofing, etc. 4. Do I go for a screamer pipe or not, not actually heard one still? A screamer pipe is VERY loud when you floor it, think 3Ltrs, 6 cylinders at 7K rpm with a 2 foot long exhaust pipe with no silencer. Subtle they are not. Some kits give you the option of recirculating the wastegate when ordering, the HKS kit is only available with the wastegate recirculated. 5. Will the PT6062 be the ideal turbo and are PT better than Garrett or other makes? They seem to be the most popular turbo at present. No not 'better'. I always use Garrett but that's just my personal preference, there's not a lot to choose between similar spec turbos from Precision, BW and Garrett. 7. Divided or Undivided. Am I right in thinking Divided aids spool? Match the turbo to the manifold, although if you are buying a kit this should already be the case. Edited July 21, 2015 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 21, 2015 Author Share Posted July 21, 2015 I'll stick the Turbo blanket on the Essentials list. Not having a UK service center is one thing that concerns me somewhat about Precision Turbos Definitely need to here a screamer pipe and see how loud the are, though could be fun.......... Interesting graph Nic, below 3k there's not a lot in it really. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted July 21, 2015 Share Posted July 21, 2015 Whifbitz turbo kit also comes with a recirc option Nic I hope the SRD one does too. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 21, 2015 Author Share Posted July 21, 2015 (edited) Whifbitz turbo kit also comes with a recirc option Nic I hope the SRD one does too. I thought that Whifbitz does but SRD doesn't? http://www.mkivsupra.net/vbb/showthread.php?319512-**New-Product-**-SRD-Single-Turbo-Kit Isn't that a screamer pipe next to the manifold in the 4th photo? Edited July 21, 2015 by Big Mark (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted July 21, 2015 Share Posted July 21, 2015 Have you spoken to a trader via PM about your goals? Lee at SRD is very helpful, he helped me and dad a great deal when we changed the turbo kit. Might be worth firing both SRD and Whifbitz a PM and see if they can help in anyway. Quote Link to comment Share on other sites More sharing options...
tony tt Posted July 21, 2015 Share Posted July 21, 2015 You aren't under 3k for long mate before boost comes on bud. Around town it's not any different to a TT in regards to drivability. Open road or duel carriageway and the power is practically instant on kickdown it's bonkers when the single comes alive it's very very addictive. Quote Link to comment Share on other sites More sharing options...
Dim Sum Posted July 21, 2015 Share Posted July 21, 2015 You aren't under 3k for long mate before boost comes on bud. Around town it's not any different to a TT in regards to drivability. Open road or duel carriageway and the power is practically instant on kickdown it's bonkers when the single comes alive it's very very addictive. Then sooner or later you be chasing bhp Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted July 21, 2015 Share Posted July 21, 2015 I thought that Whifbitz does but SRD doesn't? http://www.mkivsupra.net/vbb/showthread.php?319512-**New-Product-**-SRD-Single-Turbo-Kit Isn't that a screamer pipe next to the manifold in the 4th photo? Should be pretty simple for them to sort though Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 21, 2015 Author Share Posted July 21, 2015 Have you spoken to a trader via PM about your goals? Lee at SRD is very helpful, he helped me and dad a great deal when we changed the turbo kit. Might be worth firing both SRD and Whifbitz a PM and see if they can help in anyway. It's still early days at present, so just doing research, getting an idea of what I'll need and pricing things up and buying the odd part here and there when it comes up if I know if something I'll definitely need.. Will speak to them nearer the time I'm sure. Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 21, 2015 Author Share Posted July 21, 2015 You aren't under 3k for long mate before boost comes on bud. Around town it's not any different to a TT in regards to drivability. Open road or duel carriageway and the power is practically instant on kickdown it's bonkers when the single comes alive it's very very addictive. Sounds good to me! Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted July 22, 2015 Share Posted July 22, 2015 (edited) The best advice I can give having done it twice. Get members to take you out, don't get blown away by the all out power or speed but look for things like drivability, spool etc. The Autobox control on Syvecs is much better now but I still don't think a stock box will last long. You want to go for the Syvecs S6Plus not the GP - basically more input and outputs without the need for an expander. If you have 4 wheel ABS for T/C, Aircon & a couple of sensors thats it all your inputs gone on the GP - Plus is a lot better. If you want to do track days I would be looking at recirc kits as the noise limits don't tend to like screamer pipes Edited July 22, 2015 by T2 MSW (see edit history) Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 22, 2015 Author Share Posted July 22, 2015 Thanks T2 MSW! Syvecs S6 Plus it is then, didn't know there was more than one S6. Not looking to do track days. I know the box will be the week link so will get an SRD box at some point I'm sure. If needs be I'll build it and have it in a slightly lower state of tune for a while and then get the box and up the power. Anyone want to take me for a spin (not literally) in their single? Preferable an auto. Quote Link to comment Share on other sites More sharing options...
mellonman Posted July 22, 2015 Share Posted July 22, 2015 (edited) Just my 2 pence , With the syvecs with your power goal would not need to control the stock auto box function, toyota has done a great job with a soft gear change to save the box, I and many other with over 500bhp have had years out of there stock boxes , but have seen other standalone uses destroy boxes in very little time . you need breather set up intercooler pipe fabrication induction pipe fabrication air filter fuel lines water line modification oil line and return fpr injectors with matching fuel rail. better tyres, better transmission fluid, better brakes, better suspension. Edited July 22, 2015 by mellonman (see edit history) Quote Link to comment Share on other sites More sharing options...
T2 MSW Posted July 22, 2015 Share Posted July 22, 2015 Just my 2 pence , With the syvecs with your power goal would not need to control the stock auto box function, toyota has done a great job with a soft gear change to save the box, I and many other with over 500bhp have had years out of there stock boxes , but have seen other standalone uses destroy boxes in very little time . you need breather set up intercooler pipe fabrication induction pipe fabrication air filter fuel lines water line modification oil line and return fpr injectors with matching fuel rail. better tyres, better transmission fluid, better brakes, better suspension. Thats not really true anymore, The Syvecs has the ability to torque control (limit) and when the gear change is requested (cut) and is being used in effect on a lot of single autos these days. It will help longevity of the box as with the stock system for auto changes the Syvecs will have no control and be putting full torque through the box which the toyota setup was never intended to deal with. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted July 22, 2015 Share Posted July 22, 2015 From what I've seen Ryan is on the ball when it comes to torque limiting during shifts, and other things to prolong gearbox life. Quote Link to comment Share on other sites More sharing options...
mellonman Posted July 22, 2015 Share Posted July 22, 2015 Thats not really true anymore, The Syvecs has the ability to torque control (limit) and when the gear change is requested (cut) and is being used in effect on a lot of single autos these days. It will help longevity of the box as with the stock system for auto changes the Syvecs will have no control and be putting full torque through the box which the toyota setup was never intended to deal with. Yes the syvecs can do a great many things and is top of its game without a doubt , but thats if its mapped correctly and relevent sensors fitted same with any ecu , As for the gear changes and full control of the auto , it would cost more with extra mapping and setting , yes you would/could have custom changes , but is there any point the supra has such a great auto already Quote Link to comment Share on other sites More sharing options...
Big Mark Posted July 22, 2015 Author Share Posted July 22, 2015 Personally I'd like to let the Syvecs control the autobox. Makes sense to me to let it control both engine and transmission. Quote Link to comment Share on other sites More sharing options...
Mk4Gaz Posted July 22, 2015 Share Posted July 22, 2015 I'm pretty sure the stock auto ecu already controls torque limit on gear changes, by way of momentarily shutting the tc throttle butterfly. It's only after market throttle bodies, such as a q45 where you'd lose that function I think Quote Link to comment Share on other sites More sharing options...
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