Nicebiscuit 655 Report post Posted January 28, 2016 So, you're running standard manifold and primary cat then? Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 28, 2016 So, you're running standard manifold and primary cat then? Yes standard so that I pass MOT and don't need a remap. I realise it may seem a strange choice but the second cat is very restrictive. This blog post convinced me http://blog.perrinperformance.com/brz-front-pipe-design-and-proving/ http://blogperrinperformance.com/brz-overpipe-design-and-proving/ The front pipe on top of a catback gave a significant difference in torque either side of the dip, and increased power at the top end: Share this post Link to post Share on other sites
Lauren 2259 Report post Posted January 28, 2016 The second cat is restrictive, I saw gains by losing it too. 5-7bhp is nothing though you'd never notice it. I gained 10bhp/17lbft compared to a stock car with an intake as well and full exhaust system including overpipe. 1 Gringosteve reacted to this Share this post Link to post Share on other sites
Nicebiscuit 655 Report post Posted January 28, 2016 Interesting - as I was mulling the opposite (but more expensive) approach: aftermarket decat manifold, but keep the second cat and everything behind it. Key for me isn't so much peak power or even torque, but smoothing out the torque dip which gets on my nerves. I'm happy to remap mind to achieve that. That'd do me until the point (much further into the warranty) that I consider mild FI. 2 Gringosteve and Rich reacted to this Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 28, 2016 I think you will remove more of the dip with a new manifold but you run the risk of MOT failure I believe that way round. I was on a budget and this route is much cheaper than a manifold and remap, but not as much gains Share this post Link to post Share on other sites
Lauren 2259 Report post Posted January 28, 2016 I think you really need to change out the stock exhaust system, too Joe. Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 28, 2016 The second cat is restrictive, I saw gains by losing it too. 5-7bhp is nothing though you'd never notice it. I gained 10bhp/17lbft compared to a stock car with an intake as well and full exhaust system including overpipe. I think it is the free revving feel to the engine I can notice as opposed to feeling a power increase. I had previously fitted a panel filter which will help I guess like your intake. This way when I want to I can swap out the next components down (cat back) when I have the free cash/desire 7bhp for £120 is a bargain IMO Share this post Link to post Share on other sites
Nicebiscuit 655 Report post Posted January 28, 2016 I think you really need to change out the stock exhaust system, too Joe. Possibly so. I have no issue doing that, other than I don't really want to make a racket or have boy-racer tailpipes you can fit your arm in. The real stealth answer is to leave the whole system intact and bolt a decent s/c on - that dyno trace on the other thread of s/c on stock exhaust was impressive - but the slight issue of £s and warranty prevent that at the moment. Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 28, 2016 You can get high flow stealth exhausts, probably need a resonated decat front pipe to get rid of rasp and keep the mid pipe resonated Share this post Link to post Share on other sites
Rich 378 Report post Posted January 28, 2016 2 hours ago, Nicebiscuit said: Interesting - as I was mulling the opposite (but more expensive) approach: aftermarket decat manifold, but keep the second cat and everything behind it. Key for me isn't so much peak power or even torque, but smoothing out the torque dip which gets on my nerves. I'm happy to remap mind to achieve that. That'd do me until the point (much further into the warranty) that I consider mild FI. This is pretty much what I'm doing. I have a UEL manifold and overpipe on order from 1320 performance over the America, even with shipping and import fees it works out a lot cheaper than anything available in the UK (sub-£500 for both, landed). I'm planning to keep the rest stock for now, maybe go for a catback later on for better noise. Share this post Link to post Share on other sites
Nicebiscuit 655 Report post Posted January 28, 2016 That is interesting... Keep us posted. Now back OT - sorry Gringo... :-D 2 Rich and Gringosteve reacted to this Share this post Link to post Share on other sites
Lauren 2259 Report post Posted January 28, 2016 I admit, I've had a Milltek on my car since I took delivery of it three years ago (it may be the 4th Milltek though!). I had the second decat done at 10K miles. I've left it alone since. It's fine tbh. I think you do want a bit of exhaust noise and induction noise too, it just adds to the character, though it's not overly loud and hasn't caused me any problems and I've been fine with it despite all the mileage I do. I guess to a point it's nice to have a sporty car sounding like a sporty car if that makes sense and I do think it adds to a sense of involvement when you're on it. Mine is a non-res, but it's not silly loud, I don't hear it on the motorway when cruising. 1 Gringosteve reacted to this Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted September 27, 2016 I have been sent a set of Goodridge braided lines to review. These will be getting fitted in the next couple of weeks together with some new rear tyres as it seems I have almost worn them out . The OEM tyres last FOREVER! Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Lauren 2259 Report post Posted September 27, 2016 Let us know how you get on. I've never really been convinced by changing brake lines to braided lines, but I guess you'll need to feel a difference for the review! Yes, the blasted Primacy tyres do last a long time. Used to get 14K out of a set of rears. Half that now with the Yokos. 1 Gringosteve reacted to this Share this post Link to post Share on other sites
S18 RSG 429 Report post Posted September 27, 2016 Braided lines aren't really designed to make you feel a difference, they're more designed for quite the opposite, so you DON'T feel a difference on longer track sessions/fast road driving. We all know what a drop in brake fluid pressure feels like. Pedal goes to the floor, brakes fade, walls approach quickly. That's why we go for a higher boiling point fluid (so the fluid maintains a constant viscocity at even extreme temperatures) and braided stainless steel lines that don't expand under high temperatures, and therefore maintain consistent pressure within them. I think the misconception is that people believe they will feel a huge difference in brake feel even under normal driving, but while that may be an added bonus in some cases, it's not what they're designed for. 2 Foulsmell and Gringosteve reacted to this Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted September 27, 2016 Will be interesting to see how they fair under normal driving conditions. I don't track my car currently. Watch this space Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 1, 2017 Small update: Fitted 4 Yoko Advan v105 - car handling is transformed! Plans for 2017: Finally fit braided cables.. it's been a busy year! Fit something more permanent for engine monitoring (love gadgets)/p> Some more dress up bits Get suspected oil leak from cam plate fixed Get intermittent coil pack issue fixed Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 9, 2017 New OBD display has arrived.. but it is a birthday present so remains encased in bubble wrap and out of my reach until the 17th Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 18, 2017 Had a play with the OBD gauge yesterday and very impressed. Can now keep an eye on temps and codes without having to use my phone. Will find somewhere more permanent to fit it to in the next few days and post full details. It allows you to monitor 6 obd parameters simultaneously (many to choose from). Also tracks fuel consumption and cost, data logs, code scanner. Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Deacon 1357 Report post Posted January 18, 2017 35 minutes ago, Gringosteve said: Had a play with the OBD gauge yesterday and very impressed. Can now keep an eye on temps and codes without having to use my phone. Will find somewhere more permanent to fit it to in the next few days and post full details. It allows you to monitor 6 obd parameters simultaneously (many to choose from). Also tracks fuel consumption and cost, data logs, code scanner. Sent from my iPhone using Tapatalk Which gauge did you get? Share this post Link to post Share on other sites
Kodename47 446 Report post Posted January 18, 2017 I'd guess this: http://www.leagend.com/viewpro.asp?id=403 Share this post Link to post Share on other sites
Gringosteve 213 Report post Posted January 19, 2017 I'd guess this: http://www.leagend.com/viewpro.asp?id=403 Yes that's the one. I am messing about with fitting locations at the moment: Also looking to see if I can hack it to measure Toyota specific PIDs Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Riceburner 284 Report post Posted January 19, 2017 1 minute ago, Gringosteve said: Yes that's the one. I am messing about with fitting locations at the moment: Also looking to see if I can hack it to measure Toyota specific PIDs Sent from my iPhone using Tapatalk Be careful what you do with those gadgets,they leave multiple error codes in the ECUs. 1 Gringosteve reacted to this Share this post Link to post Share on other sites
Kodename47 446 Report post Posted January 19, 2017 42 minutes ago, Riceburner said: Be careful what you do with those gadgets,they leave multiple error codes in the ECUs. They shouldn't do and it won't have a negative impact on running as it just polls the Canbus. Plus this can clear codes in the ECU anyway 49 minutes ago, Gringosteve said: Also looking to see if I can hack it to measure Toyota specific PIDs The main thing that you want, oil temp, doesn't seem to be standard. If you can get that then I doubt there's much more you need. Really it's oil and water temp and the rest are just nice extras. I wonder how the 4 does versus the 6 visually. Share this post Link to post Share on other sites
Bfranklyn86 52 Report post Posted January 19, 2017 On 01/01/2017 at 8:17 PM, Gringosteve said: Small update: Fitted 4 Yoko Advan v105 - car handling is transformed! By transformed do you mean just way more grip? This is what I'm after because right now supercharger + primacies + winter = quite dangerous. Share this post Link to post Share on other sites
