Gaz Walker Posted January 14, 2008 Share Posted January 14, 2008 Who is the .net maths bod? Alex isn't it- if we can work out the ideal pipe diameters for a GT28 conversion, which I assume would be around 30%-50% smaller than T58 sizing we may find some space for RHD. We being the Royal we, obviously I think I could get a good discount for the first "trial" kit over here when/if someone wants to go down this route. Gaz. Quote Link to comment Share on other sites More sharing options...
Gazboy Posted January 14, 2008 Author Share Posted January 14, 2008 Does AEM cater for auto & vvti cars? Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted January 14, 2008 Share Posted January 14, 2008 Does AEM cater for auto & vvti cars? I think it does now, although what ever ECU you decide to use, your going to need a really proficient mapper to make the most of those change over points between the two turbos, I would enquire about base maps from sound performance as a starting point, although getting one will probably be as rare as you finding a rocking horse that shits Quote Link to comment Share on other sites More sharing options...
Ark Posted January 14, 2008 Share Posted January 14, 2008 I think I could get a good discount for the first "trial" kit over here when/if someone wants to go down this route. Gaz. OK OK I'll let you put one on my car, in return for wearing some Envy stickers Quote Link to comment Share on other sites More sharing options...
Alex Posted January 14, 2008 Share Posted January 14, 2008 Its a lovely setup, would be fantastic on a track car, I'm trying to find out from them about the RHD compatibility. Gaz. IMO, Can't see how it would be good on a track... A) You've got the surge from the 2nd turbo just when you're exiting a corner. B) Anyone on a track with a Supra shouldn't really be applying power below 4000rpm, which means anything T71 (even a T76 with a 3.4) or smaller would be up and running, getting the jump on a sequential kit that's waiting on it's 2nd turbo. IMO, the turbo's are too big. GT30's would have been more than enough, GT28's probably better. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted January 14, 2008 Share Posted January 14, 2008 A) You've got the surge from the 2nd turbo just when you're exiting a corner. I guess it depends on the final curve but I agree with this statement. I can't see the value in having so much extra torque come in so suddenly. I know how my T61 feels when it spools and it's quick. The mapper will have to be extremely good and will end up with a nice pay packet at the end of it. Quote Link to comment Share on other sites More sharing options...
Ark Posted January 14, 2008 Share Posted January 14, 2008 IMO, Can't see how it would be good on a track... A) You've got the surge from the 2nd turbo just when you're exiting a corner. B) Anyone on a track with a Supra shouldn't really be applying power below 4000rpm, which means anything T71 (even a T76 with a 3.4) or smaller would be up and running, getting the jump on a sequential kit that's waiting on it's 2nd turbo. IMO, the turbo's are too big. GT30's would have been more than enough, GT28's probably better. Now that's a load of bollocks. You pick your speed and gear so you can go full throttle on the apex and get full boost just as you start to unwind the lock. If your back end steps out, you've probably been club-footed and ham fisted and you deserve a spin. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted January 14, 2008 Share Posted January 14, 2008 Now that's a load of bollocks. You pick your speed and gear so you can go full throttle on the apex and get full boost just as you start to unwind the lock. If your back end steps out, you've probably been club-footed and ham fisted and you deserve a spin. Yeah but having all that extra grunt come in at the exit of a corner if the car isn't 100% straight is bound to cause issues. Also I wouldn't be shocked if the car lit up in 3rd at the least on the 1st turbo and on the second? Who knows... Supras struggle for traction as it is with high power in the lower rev range, bringing it down the rev range so much would make it hard work IMO. It's almost like having 2 curves to play off against each other in an exaggerated sense. Besides, if you aren't using full power on a track then you are losing time (thanks to Ayrton Senna for that one ) All IMHO of course, I'd like to be proven wrong so I can batter my credit rating again but I don't see how this could be much more use than a decent single car? I mean top marks for the workmanship etc but the idea may be a touch redundant at those power levels. Quote Link to comment Share on other sites More sharing options...
Alex Posted January 14, 2008 Share Posted January 14, 2008 Now that's a load of bollocks. You pick your speed and gear so you can go full throttle on the apex and get full boost just as you start to unwind the lock. If your back end steps out, you've probably been club-footed and ham fisted and you deserve a spin. Well I did say IMO. But I can't see how a surge of power at 5000+ rpm when trying to nail it out of a corner is going to help the laptime. Progressive power doesn't break traction nearly half as much...that's why so many people that have gone small single wouldn't go back to the sequentials.... Quote Link to comment Share on other sites More sharing options...
Gaz Walker Posted January 14, 2008 Share Posted January 14, 2008 Does AEM cater for auto & vvti cars? Yep. OK OK I'll let you put one on my car, in return for wearing some Envy stickers Too kind IMO, Can't see how it would be good on a track... A) You've got the surge from the 2nd turbo just when you're exiting a corner. B) Anyone on a track with a Supra shouldn't really be applying power below 4000rpm, which means anything T71 (even a T76 with a 3.4) or smaller would be up and running, getting the jump on a sequential kit that's waiting on it's 2nd turbo. IMO, the turbo's are too big. GT30's would have been more than enough, GT28's probably better. It something we thought would be great on the track, but then again we though our Supra was good on the track (mainly because with 1000hp you can catch anything you want on the straights! ) I suppose we'll have to leave the official comment until someone gives it a go Gaz. Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted January 15, 2008 Share Posted January 15, 2008 It something we thought would be great on the track, but then again we though our Supra was good on the track (mainly because with 1000hp you can catch anything you want on the straights! ) I suppose we'll have to leave the official comment until someone gives it a go Gaz. Watch this space as im always leaning towards a one off setup like this....once my stockers are gone I can get my ass in gear and get something sorted, im thinking maybe still using the stock manifold, with some GT28 flanges somehow welded on. The manifold will need a lot of work as well as oil lines and fitting actuators etc but I reckon I can do it. I was going to buy those VV turbos that were for sale on here a while back as they would have been perfect, but my flat being decorated took preference Quote Link to comment Share on other sites More sharing options...
Gazboy Posted January 15, 2008 Author Share Posted January 15, 2008 There's a thread somewhere here and on supraforums about fitting GT28's to a stock manifold. Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted January 15, 2008 Share Posted January 15, 2008 There's a thread somewhere here and on supraforums about fitting GT28's to a stock manifold. I know there is i posted it Quote Link to comment Share on other sites More sharing options...
Lee P Posted February 26, 2008 Share Posted February 26, 2008 Just been reading this thread on Supraforums, awsome kit. Quote Link to comment Share on other sites More sharing options...
Suprash Posted February 26, 2008 Share Posted February 26, 2008 Do we know if this kit is being sold yet, and as a kit that someone else can fit other then their own garage...? Quote Link to comment Share on other sites More sharing options...
dwayne Posted February 26, 2008 Share Posted February 26, 2008 still working out some issues as far as i can tell apparently its going to be around $11'995 Quote Link to comment Share on other sites More sharing options...
dwayne Posted February 26, 2008 Share Posted February 26, 2008 http://www.spracingonline.com/projects/ Quote Link to comment Share on other sites More sharing options...
Sharpie Posted February 27, 2008 Share Posted February 27, 2008 Now this is interesting......... You wait long enough Ash and they build it It is true sequential ! I remember all the haters on your thread years ago Quote Link to comment Share on other sites More sharing options...
Suprash Posted February 27, 2008 Share Posted February 27, 2008 You wait long enough Ash and they build it It is true sequential ! I remember all the haters on your thread years ago Definitely Pete, you have a good memory lol... Like you say, only took a few years but we got there.... Quote Link to comment Share on other sites More sharing options...
Nic Posted February 27, 2008 Share Posted February 27, 2008 Looks horribly complex to me, give me a simple cast manifold and single turbo any day Quote Link to comment Share on other sites More sharing options...
Tones Posted February 27, 2008 Share Posted February 27, 2008 Actually this is :drool: http://spracingonline.com/upload/files/1/spseqcoated.jpg Damn thats sweeeet Quote Link to comment Share on other sites More sharing options...
Suprash Posted February 27, 2008 Share Posted February 27, 2008 Looks horribly complex to me, give me a simple cast manifold and single turbo any day Horribly complex, or a great bit on engineering, I know what it looks like to me Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 27, 2008 Share Posted February 27, 2008 Metal obviously doesn't expand and contract at around 800 C in their world No expansion joints, a recipe for blown joints, cracks and broken studs, IMO. Quote Link to comment Share on other sites More sharing options...
Suprash Posted February 27, 2008 Share Posted February 27, 2008 Metal obviously doesn't expand and contract at around 800 C in their world No expansion joints, a recipe for blown joints, cracks and broken studs, IMO. God there is always someone wanting to piss on my fire in life.... Quote Link to comment Share on other sites More sharing options...
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