Branners Posted February 5, 2011 Share Posted February 5, 2011 Both 'proof' and 'evidence' are in the Clubs official Supra drag times, and it is informative to learn why there happens to be many TT's that are recorded to be faster than many singles. Very poor post. I know you only have 6 fingers on each hand, but count how many sub 13sec singles there are and how many sub 13sec BPU cars there are... Then explain how you can define 'many TTs' to be faster than 'many singles'? There are 8 singles faster than the fastest BPU so surely the single car is quicker? Quote Link to comment Share on other sites More sharing options...
davej705 Posted February 5, 2011 Share Posted February 5, 2011 Small and wide is best imo, no rubber band tyres. I've got these 19s for cruising about but when the power comes going to be looking at some 18's. My car will be too loud for the strip so no point getting any drag wheels for me.you drag wheels are 15's aren't they? How big is the rubber on them? And why do people lower tyre pressures for dragging? Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted February 5, 2011 Share Posted February 5, 2011 Actually fuck this everytime I read one of your posts my skin crawls, easy fix for that Ban or Ignore? Quote Link to comment Share on other sites More sharing options...
davej705 Posted February 5, 2011 Share Posted February 5, 2011 (edited) Sounds like it must have been a decent spec, any info Yeah 2.5ltr fully forged block ported and polished heads oversize valves and Sti cams 740cc injectors Solaris ecu (before they were popular here!) Gt35 on rotated manifold Dog box with HKS twin plate Stripped out and lots of carbon Lots of aggressive anti-lag and lc with 4300rpm launch Was an animal but I've moved on now Edited February 5, 2011 by davej705 (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 5, 2011 Share Posted February 5, 2011 A lot is down to internal parts and running as far inside the envelope as your budget and desired longevity allow. I can cite my RB26 engine as an example. Built from ALL new parts including all castings. Steel Farndon crank, steel Tomei rods, cooling channel in the crown Tomei forged pistons with Ti coated rings properly gapped, 280 degree cams with a fair amount of lift (10.80 mm), 780 CC injectors, modded ignition system to get rid of the scatter prone optical crank position sensor, trick Tomei olil pump, deep baffled sump, 38 row t/statically controlled oil cooler. big rad, direct drive high volume engine driven fan. On ported stock cast turbo manifolds running Garret 2860 -10 turbos. Motec M800 with LOTS of dyno and track mapping. A really high spec engine, screwed together with love. How much boost do I run? 1.3 bar. How much power? About 550 to 560 BHP. It's done maybe 10 track days since built, and virtually zero road miles, another 4 track days and it will be due a refresh, probably rings, valve lap, valve springs, rod bolts and a full crack test. So not a lot of boost, and not a lot of power compared to some figures bandied about for similar spec engines. I have the realisation that even starting with all new bits, track time takes its toll, and a rigorous strip, check and rebuild regime with the required replacement of "lifed" bits is vital. Take an 80,000 miler 2JZ, nail a single on at and some cams and expect a reliable 600 HP? I don't think so. Sorry. Once you get into more than say a 20% power hike the base engine needs to be as good as you can get it, and even more power will need plenty of bespoke bits to keep reliability, if it's used hard and often. What may just survive a few 1/4 mile runs with a cool down period between may well go pop after two laps of a race circuit. The thermal stresses are continuous, rather than for a few seconds starting with an engine at normal temps, with an immediate cool off period after the run. Quote Link to comment Share on other sites More sharing options...
JamieP Posted February 5, 2011 Share Posted February 5, 2011 I've got these 19s for cruising about but when the power comes going to be looking at some 18's. My car will be too loud for the strip so no point getting any drag wheels for me.you drag wheels are 15's aren't they? How big is the rubber on them? And why do people lower tyre pressures for dragging? Ok, last post:D You wont be to loud for the drag strip, there is no noise limits so thats that excuse gone;) Ive not had a chance to use my 15's yet, i did my 10.5 on a set of volk 17's. The 15's are 275/50/15. Quote Link to comment Share on other sites More sharing options...
Guigsy Posted February 5, 2011 Share Posted February 5, 2011 I've got these 19s for cruising about but when the power comes going to be looking at some 18's. My car will be too loud for the strip so no point getting any drag wheels for me.you drag wheels are 15's aren't they? How big is the rubber on them? And why do people lower tyre pressures for dragging? Drag strips don't have noise limits. Or the ones I've been to haven't Damn you Jamie Quote Link to comment Share on other sites More sharing options...
Josh Posted February 5, 2011 Share Posted February 5, 2011 Drag strips don't have noise limits. Or the ones I've been to haven't So theoretically you can just remove your exhaust and run it like that if you wish, thus removing any/all restrictions? Quote Link to comment Share on other sites More sharing options...
davej705 Posted February 5, 2011 Share Posted February 5, 2011 Ok, last post:D You wont be to loud for the drag strip, there is no noise limits so thats that excuse gone;) Oh didn't realise that With twin screamers and 4inch all the way through mine should sound nice on the strip. See you there mate! Quote Link to comment Share on other sites More sharing options...
Brazil Posted February 5, 2011 Share Posted February 5, 2011 Oh didn't realise that With twin screamers and 4inch all the way through mine should sound nice on the strip. See you there mate! Ohh yeahh it's on Jamie...! better man up...! 1) davej705 vs Jamie P Quote Link to comment Share on other sites More sharing options...
David P Posted February 5, 2011 Author Share Posted February 5, 2011 (edited) [quote name=jevansio Originally Posted by jevansio Actually fuck this everytime I read one of your posts my skin crawls, easy fix for that [/quote] Jevansio, What's you're problem? Edited February 5, 2011 by David P (see edit history) Quote Link to comment Share on other sites More sharing options...
David P Posted February 5, 2011 Author Share Posted February 5, 2011 Ok, last post:D You wont be to loud for the drag strip, there is no noise limits so thats that excuse gone;) Ive not had a chance to use my 15's yet, i did my 10.5 on a set of volk 17's. The 15's are 275/50/15. http://i30.photobucket.com/albums/c338/jamie450x/redlinemag017.jpg Interesting to learn they are 275's, they look wider. Quote Link to comment Share on other sites More sharing options...
davej705 Posted February 5, 2011 Share Posted February 5, 2011 Ohh yeahh it's on Jamie...! better man up...! 1) davej705 vs Jamie P I wouldnt go that far yet! Mines still an NA at the minute Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted February 5, 2011 Share Posted February 5, 2011 So theoretically you can just remove your exhaust and run it like that if you wish, thus removing any/all restrictions? It couldn't be any louder than the Dragon 4 rotor RX7 SRPFSsidNbk&feature=related Quote Link to comment Share on other sites More sharing options...
Nic Posted February 5, 2011 Share Posted February 5, 2011 (edited) And why do people lower tyre pressures for dragging? Watch a Supra setup for drag racing off the line and you'll see the rear suspension and tyres compress to get as much traction as possible off the line. The suspension is softer/longer travel and the wheels are smaller with big side wall soft tyres, these help transfer the power to the track and maximise grip. CXa9ggyHa10 dOLnSgN1tMM Edited February 5, 2011 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
JamieP Posted February 5, 2011 Share Posted February 5, 2011 It couldn't be any louder than the Dragon 4 rotor RX7 Rotarys can sound superb, this RX3 sounds insane. Quote Link to comment Share on other sites More sharing options...
davej705 Posted February 5, 2011 Share Posted February 5, 2011 Watch a Supra setup for drag racing off the line and you'll see the rear suspension and tyres compress to get as much traction as possible off the line. The suspension is softer/longer travel and the wheels are smaller with big side wall soft tyres, these help transfer the power to the track and maximise traction Yeah I see they way it squats then is just propelled forward.I have friends that drag yank cars so will ask them for some lessons. Quote Link to comment Share on other sites More sharing options...
TTRickeh Posted February 5, 2011 Share Posted February 5, 2011 Rotarys can sound superb, this RX3 sounds insane. Good god so it does Never heard that before. Quote Link to comment Share on other sites More sharing options...
Bailey. Posted February 5, 2011 Share Posted February 5, 2011 (edited) huhumm, the best sounding rotary anywhere, sorry, dont know how to embed as above, mad mikes quad rotor na rx7, f1 anyone?? well off topic, but ,,, Edited February 5, 2011 by Bailey. (see edit history) Quote Link to comment Share on other sites More sharing options...
GazB Posted February 5, 2011 Share Posted February 5, 2011 Yeah I see they way it squats then is just propelled forward.I have friends that drag yank cars so will ask them for some lessons. Weight transfer doesn't just happen at the launch, you will have to learn to manage this process upto and including the 1st gear change at about the 60ft mark (presuming your running a manual box), by getting this right your launch times will lower meaning your overall times will drop. You will need to aim for sub 1.8 sec 0-60ft's to start getting into the 11's without having a lot ofbig bhp to gain time at the top end of the track. Quote Link to comment Share on other sites More sharing options...
GazB Posted February 5, 2011 Share Posted February 5, 2011 I have friends that drag yank cars so will ask them for some lessons. You will also find launching a turbo car is a lot different to launching a big bore yank, power delivery is way different Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted February 5, 2011 Share Posted February 5, 2011 My old supra was easily as quick down 1/4 mile as my do-luck T67 ever was. Its initial pickup and its overall grunt just pipped the T67. However that's not the whole story. Once rolling on WOT the T67 devastated the performance of my BPU supe. In traffic the response of the TT made it so much more useable power wise, again not the whole story because after the second or so difference it took to spool the bad boy it was like unleashing hell. It really is two different kettles of two different fish. For a 1/4 a BPU supe will handle all of the traction there is to have. That is why dude cracked into the 10's before his holiday with a car that was significantly lower powered than its competitors. An understanding of how to apply the available power to the floor is tantamount to a good 1/4 time. Quote Link to comment Share on other sites More sharing options...
Swampy442 Posted February 5, 2011 Share Posted February 5, 2011 It couldn't be any louder than the Dragon 4 rotor RX7 4 rotors sound the nuts Quote Link to comment Share on other sites More sharing options...
Bailey. Posted February 5, 2011 Share Posted February 5, 2011 4 rotors sound the nuts That dragon rx7 was a 2 rotor, not 4;) Quote Link to comment Share on other sites More sharing options...
Nic Posted February 5, 2011 Share Posted February 5, 2011 (edited) In traffic the response of the TT made it so much more useable power wise, again not the whole story because after the second or so difference it took to spool the bad boy it was like unleashing hell. It also depends on the single turbo you're using. 99% my driving in HK was in traffic, there was was only around 3-400rpms difference between my BPU TT first turbo making positive boost and my GT35R making positive boost. Trundling along in traffic say at 2-3Krpm the GT35R had the same response as my TT but delivered hugely more power. Edited February 5, 2011 by Nic (see edit history) Quote Link to comment Share on other sites More sharing options...
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