Ryan.G Posted October 10, 2007 Share Posted October 10, 2007 Well got 30 mins spare tonight to put a quick map on my car with the t61 now strapped on. Got to say absolutely love it. Having driven a t61 and t67 now i must say the t61 is the turbo for me. The low down torque is incrediable and holds the power well till around 5500rpm and then the stock cams choke up the engine but with my new cams its going to be fun. Did a quick data log of a 3rd gear run in my car tonight and have been trying to find a log of a t67 in 3rd but only have them in 4th +. T61 - 1.35bar by 4000rpm in 3rd and T67 - 1.35bar by 4200rpm in 4th. see logs below T61 T67 Look forward to getting it on the dyno with cams in when i have sorted out my boost control issue. If anyone wants a demo of the a t61 i will hopefully be at the next reading jap meet. I exspect homer will also be there in his t67 also Quote Link to comment Share on other sites More sharing options...
Pig Posted October 10, 2007 Share Posted October 10, 2007 I my T61 - running 264's and it just keeps pulling Whens the next dyno day? Quote Link to comment Share on other sites More sharing options...
Homer Posted October 10, 2007 Share Posted October 10, 2007 Always good to hear some first hand experience Must admit I think the T61 is seeming like the turbo more suited to my driving style Is that mine you're comparing to on the charts? Look forward to getting it on the dyno with cams in when i have sorted out my boost control issue. If anyone wants a demo of the a t61 i will hopefully be at the next reading jap meet. I exspect homer will also be there in his t67 also I'll be there for sure, but am have a few traction issues in the cold weather! Any chance of a ride in your's? I'd love to see how it is now. Quote Link to comment Share on other sites More sharing options...
Ryan.G Posted October 10, 2007 Author Share Posted October 10, 2007 Is that mine you're comparing to on the charts? Sure is Any chance of a ride in your's? I'd love to see how it is now. Yh you can take it for drive also if you want mate, return the favour for letting me drive yours Quote Link to comment Share on other sites More sharing options...
Homer Posted October 10, 2007 Share Posted October 10, 2007 Yh you can take it for drive also if you want mate, return the favour for letting me drive yours Deal Though after last time, I'm a bit nervous... 100+ on a short, single track country lane.. Quote Link to comment Share on other sites More sharing options...
Wez Posted October 10, 2007 Share Posted October 10, 2007 Nice one Ryan, you know what gains are possible with the cams too Quote Link to comment Share on other sites More sharing options...
Muffleman Posted October 10, 2007 Share Posted October 10, 2007 Good to hear mate Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted October 10, 2007 Share Posted October 10, 2007 I love the T61's Unfortunatelly I ended up sitting in various cars running bigger and had to move on. Started with a 67 and ended up on a 72. After being in them the 61 felt fast but the grunt wasnt there. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 10, 2007 Share Posted October 10, 2007 I thought I had a 61 in my car and almost replaced my buggered one with a 61. I decided to "upgrade" to a 67 dbb and when it pitched up it became obvious mine was originally a 67 after all. I've done some research and found my car in hyper rev magazine. In the spec sheet its listed as having 272 exhaust cam but no reference to the inlet cam. Why would they do that? I want a lower spooling exhaust housing now as I am finding the 0.96 a little late in a fat hefferlump of a car. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted October 11, 2007 Share Posted October 11, 2007 Thats good to hear Ryan Looking forward to getting mine back even more now. Quote Link to comment Share on other sites More sharing options...
suprafan72 Posted October 11, 2007 Share Posted October 11, 2007 Nice one Ryan!! Looking forward to a test spin in this myself sometime Quote Link to comment Share on other sites More sharing options...
Nic Posted October 11, 2007 Share Posted October 11, 2007 What AR is the T61 and does anyone know how it compares to the GT35R? I use the GT35R AR 0.82 with in256/ex264 cams, after seeing Wez's results I'm thinking there could be some benefit in swapping to a 264 inlet cam. Quote Link to comment Share on other sites More sharing options...
Ian C Posted October 11, 2007 Share Posted October 11, 2007 I too am thinking about the 264 intake cam Ryan - plenty of info regarding the T67 here About 4700rpm for 1.3bar+ but you must remember I was (and still am) missing that bit of the wastegate so I've got a constand gas leak and therefore a slightly slower spool than I should have. Only found this out thanks to comparing mine with Homers on the SRR dyno I've been tempted by a T61 but I think I'd miss the mahoosive grunt and tbh most of my driving is dual carriageway so it suits my style. -Ian Quote Link to comment Share on other sites More sharing options...
Alex Posted October 11, 2007 Share Posted October 11, 2007 What AR is the T61 and does anyone know how it compares to the GT35R? I use the GT35R AR 0.82 with in256/ex264 cams, after seeing Wez's results I'm thinking there could be some benefit in swapping to a 264 inlet cam. It's a 0.68 usually with an undivided housing. The 0.84 option is also available. Quote Link to comment Share on other sites More sharing options...
Wez Posted October 11, 2007 Share Posted October 11, 2007 It's a 0.68 usually with an undivided housing. The 0.84 option is also available. Mine is a devided housing with .70a/r I also measured it at 61mm Quote Link to comment Share on other sites More sharing options...
Dash Rendar Posted October 11, 2007 Share Posted October 11, 2007 I'm looking forward to maybe having a T61 someday soon.... Quote Link to comment Share on other sites More sharing options...
tDR Posted October 11, 2007 Share Posted October 11, 2007 Excellent performance Ryan! What are peoples opinions on the ideal single to go on an auto with 4,000 stall TC and BL trans? Earliest I'd be doing it is 2nd half of next year. I'll be fitting a 'proper' fuel system at the same time, maybe cams after the initial install / setup and I have a benchmark on an otherwise stock engine drag times wise. Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
Alex Posted October 11, 2007 Share Posted October 11, 2007 Mine is a devided housing with .70a/r I also measured it at 61mm Let's be clear then. Wez has a Turbonetics / PHR "GT60-1" BL kits have "T61"'s from Precision. Quote Link to comment Share on other sites More sharing options...
Alex Posted October 11, 2007 Share Posted October 11, 2007 Excellent performance Ryan! What are peoples opinions on the ideal single to go on an auto with 4,000 stall TC and BL trans? With a 4000 you could do with a T67 IMO. Quote Link to comment Share on other sites More sharing options...
tDR Posted October 11, 2007 Share Posted October 11, 2007 With a 4000 you could do with a T67 IMO. I was thinking that would be the smallest to go for given the characteristics of the TC. I figure although a T61 is quickspooling, it would be a waste because it wouldn't be seeing full load to close to the stall speed. Then you have full load, subsequently full load amount of exhaust gas and ultimately that will full spool a T67 just the same as a T61 and maybe even a larger turbo? The other thing I've got to worry about is not breaking the BL trans, I think they're rated to around 750bhp? But I seem to break most things a lot easier than other people. Cheers, Brian. Quote Link to comment Share on other sites More sharing options...
stupra Posted October 11, 2007 Share Posted October 11, 2007 I was gutted that I didn't get around to fitting the turbo on my car, but i'm made up that it's delivering the goods for you Ryan. Good figure's mate. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted October 11, 2007 Share Posted October 11, 2007 Mine is a devided housing with .70a/r I also measured it at 61mm That makes an actual real time exhaust A/R in the late 0.50's doesn't it. That turbo must spool very very quickly then. Quote Link to comment Share on other sites More sharing options...
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