Gazboy Posted July 17, 2006 Share Posted July 17, 2006 Ok, Homer said it was a rough photoshop overlaying his dyno results over Terry's, but I was most impressed: http://www.pistonheads.com/gassing/topic.asp?t=266464&f=71&h=0&p=18 (it's near the bottom, you'll know it when you see it). Link to comment Share on other sites More sharing options...
Thorin Posted July 17, 2006 Share Posted July 17, 2006 http://homepage.ntlworld.com/darryl.lloyd2/Supra/T61%20vs%20BPU.jpg Link to comment Share on other sites More sharing options...
Bobbeh Posted July 17, 2006 Share Posted July 17, 2006 Now overlay Titans Link to comment Share on other sites More sharing options...
Gazboy Posted July 17, 2006 Author Share Posted July 17, 2006 Now overlay Titans You'll have to ask Homer- but why Titan? Link to comment Share on other sites More sharing options...
Bobbeh Posted July 17, 2006 Share Posted July 17, 2006 It would be good to see a BPU car, vs a APU car vs a Super tuned APU monster Link to comment Share on other sites More sharing options...
Gazboy Posted July 17, 2006 Author Share Posted July 17, 2006 It would be good to see a BPU car, vs a APU car vs a Super tuned APU monster Indeed. I'm 99% certain Homer has a stock dyno sheet too VERY HANDY! If you are into that sort of thing (and I am). Link to comment Share on other sites More sharing options...
Bobbeh Posted July 17, 2006 Share Posted July 17, 2006 So do I... somewhere. Link to comment Share on other sites More sharing options...
Matt Harwood Posted July 17, 2006 Share Posted July 17, 2006 Now overlay Titans The numbers don't go up far enough! Link to comment Share on other sites More sharing options...
Homer Posted July 18, 2006 Share Posted July 18, 2006 Now overlay Titans If you can let me know where I can find such a graph I will gladly overlay it. Its not on http://dyno.to4r.com/graph.php so please point in the right direction Can anyone send me a graph of a stock Supra so it can be added to the graph? Must have been done at SRR though. Link to comment Share on other sites More sharing options...
Guest Terry S Posted July 18, 2006 Share Posted July 18, 2006 Now overlay Titans Good Idea. on a dyno dynamics RR, using optimax, and no NOS;) As I said on PH, thanks Darryl, just shows not all singles are laggy. Link to comment Share on other sites More sharing options...
outatime Posted July 18, 2006 Share Posted July 18, 2006 That is very impressive. How much of that is attributable to VVTI trickery? Would you expect much difference on a pre-vvti with the same set-up? Link to comment Share on other sites More sharing options...
Alex Posted July 18, 2006 Share Posted July 18, 2006 From what I have seen VVTi can reduce spool by about 2-300rpms. And DBB by another 300rpm. Link to comment Share on other sites More sharing options...
Guest Terry S Posted July 18, 2006 Share Posted July 18, 2006 That is very impressive. How much of that is attributable to VVTI trickery? Would you expect much difference on a pre-vvti with the same set-up? Cant say really, the VVTi action will help, it really is a combination of the VVTi, selection of parts, and good tuning. Link to comment Share on other sites More sharing options...
Alex Posted July 18, 2006 Share Posted July 18, 2006 Cant say really, the VVTi action will help, it really is a combination of the VVTi, selection of parts, and good tuning. True...although I compared to another T61 I can't say they had the same tune as me... Link to comment Share on other sites More sharing options...
Guest Terry S Posted July 18, 2006 Share Posted July 18, 2006 True...although I compared to another T61 I can't say they had the same tune as me... Thats tricky unless compared on the same rollers as well, thats what is good about the comparison above. Darryl's is a good strong BPU car too. Link to comment Share on other sites More sharing options...
Class One Posted July 18, 2006 Share Posted July 18, 2006 Homer, pm me your e mail address and I'll send you my graph (on an auto) from SRR last year. I've just noticed as well, that my car was run in 2nd gear I believe that affects the figures doesn't it. I think I read Alex as saying that autos should be run in 3rd on a dyno? Link to comment Share on other sites More sharing options...
Stonkin Posted July 18, 2006 Share Posted July 18, 2006 On the graph i have, mine shows as it being run in 2nd as well, but it was actually run in 3rd. Same rolling road Link to comment Share on other sites More sharing options...
michael Posted July 18, 2006 Share Posted July 18, 2006 Maybe someone with the knowhow could create something like this: http://www.mr2mania.com/plot.php It's not an exact science and obviously different RRs can give wildly different results but it's interesting all the same. Link to comment Share on other sites More sharing options...
stupra Posted July 18, 2006 Share Posted July 18, 2006 It would be good to see the differances of various tuned cars, starting with standard, then going up in turbo sizes all on the same graph. Would give people an idea of the bhp figure for the set up they're going for. Link to comment Share on other sites More sharing options...
Gazboy Posted July 18, 2006 Author Share Posted July 18, 2006 I can help arrange a shootout at SRR or DSA/G-Force (both dyno's can be compared to eachother)? Ideally with 6 speeds as imo autoboxes just make life more complicated than it needs to be. Terry- I suspect the VVti helps quite a fair bit, I can't see a Toyota official oking an expensive r&d and manufactor if the system was a paperweight. Micheal- that link is bloody handy- looks like I had a bloody good rev2 looking at the others! Link to comment Share on other sites More sharing options...
Matt Harwood Posted July 18, 2006 Share Posted July 18, 2006 Terry- I suspect the VVti helps quite a fair bit, I can't see a Toyota official oking an expensive r&d and manufactor if the system was a paperweight. Whilst I'm sure it can help with the powerband, I'm fairly sure the whole VVTi thing was born from immission control. Link to comment Share on other sites More sharing options...
Gazboy Posted July 18, 2006 Author Share Posted July 18, 2006 Whilst I'm sure it can help with the powerband, I'm fairly sure the whole VVTi thing was born from immission control. Are you sure? I only question it as the VVti couldn't make emmision targets in the USA and EU. Link to comment Share on other sites More sharing options...
Guest Terry S Posted July 18, 2006 Share Posted July 18, 2006 by the nature of it, it will help faster spool and torque, but it's difficult to quantify. Link to comment Share on other sites More sharing options...
Gazboy Posted July 18, 2006 Author Share Posted July 18, 2006 by the nature of it, it will help faster spool and torque, but it's difficult to quantify. That's easy enough- run a stock 6spd J-spec vs a UK6 vs a VVti 6 at SRR. Link to comment Share on other sites More sharing options...
Nic Posted July 19, 2006 Share Posted July 19, 2006 I thought I would overlay my dyno graph (I only have hp), I am running BPU on stock jap turbos at 1.25bar, but in TTC (parallel). See my garage for full spec It is interesting to see how the power curve compares to Homer's BPU Supra running in sequential mode, we are both making similar top end power, but I seem to gain a lot of mid range power running in parallel. http://img147.imageshack.us/img147/8074/t61vsbpubm7.jpg Link to comment Share on other sites More sharing options...
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