Noz Posted July 24, 2019 Share Posted July 24, 2019 (edited) Do you see total full boost, even TTC around the same time? What RPM do you see full boost please? Any rough numbers at all. Edited July 24, 2019 by Noz (see edit history) Quote Link to comment Share on other sites More sharing options...
squiffy Posted July 24, 2019 Share Posted July 24, 2019 When it hits 4k bang on [emoji1360] Quote Link to comment Share on other sites More sharing options...
Noz Posted July 24, 2019 Author Share Posted July 24, 2019 Oh really? I'm surprised at that. I used to see full boost on my XS T61 at 3800rpm. Was a fair sized turbo as well. My new 62mm is much smaller. Does anyone else see lower? What do people with small singles see? Quote Link to comment Share on other sites More sharing options...
mellonman Posted July 25, 2019 Share Posted July 25, 2019 I have a DBB T67 and see full boost say 4500 rpm . But that's going through the gears alot of people state there full boost when they are in top gear doing a pull Quote Link to comment Share on other sites More sharing options...
WayneW Posted July 25, 2019 Share Posted July 25, 2019 (edited) Stock 2JZ-GTE VVTI BC stage 2 cams, GREDDY inlet, 64mm BW 750cc injectors only… 1.3bar max boost lol super fast spool ! Edited July 25, 2019 by WayneW (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted July 25, 2019 Author Share Posted July 25, 2019 Wayne what rpm do.you see full boost. That dyno doesn't really tell me much when comparing full boost. As you don't show at rpm at which you hit 1.3 bar. Quote Link to comment Share on other sites More sharing options...
Style Posted July 25, 2019 Share Posted July 25, 2019 About 3200rpm for me. Whifbitz NA-T, stock engine, 60mm BW turbo Quote Link to comment Share on other sites More sharing options...
Chris Bailey Posted July 25, 2019 Share Posted July 25, 2019 About 3800rpm for us, Precision 6466DBB GEN2, starts making positive boost at 2000rpm. Quote Link to comment Share on other sites More sharing options...
WayneW Posted July 25, 2019 Share Posted July 25, 2019 I collect the car at SRD next week, will let you know Quote Link to comment Share on other sites More sharing options...
Noz Posted July 25, 2019 Author Share Posted July 25, 2019 About 3200rpm for me. Whifbitz NA-T, stock engine, 60mm BW turbo 3200 is nice! Really nice! Quote Link to comment Share on other sites More sharing options...
Style Posted July 25, 2019 Share Posted July 25, 2019 3200 is nice! Really nice! High compression and log manifold definitely helps! I'm about to drop to 9:1 so will be interesting to see if there's any difference Quote Link to comment Share on other sites More sharing options...
Noz Posted July 25, 2019 Author Share Posted July 25, 2019 Log better for spool and torque but not hp I saw somewhere? Quote Link to comment Share on other sites More sharing options...
Style Posted July 25, 2019 Share Posted July 25, 2019 Log better for spool and torque but not hp I saw somewhere? Well I've heard the Whifbitz log's can't really cope past the 550hp-ish mark. I'm guessing that's down to flow restrictions and temps. I have noticed that tubular mani'd NA-T's seem to make quite a bit more power than I have but I always put it down to the many other variables Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted July 25, 2019 Share Posted July 25, 2019 What about going for a cast manifold? Quote Link to comment Share on other sites More sharing options...
Noz Posted July 25, 2019 Author Share Posted July 25, 2019 What about going for a cast manifold? That'd be a nice comparison. I have a modified eBay one. Hopefully it doesn't give me any boost creep issues now I've a bigger wastegate. I previously saw boost spikes with a typical 4 bolt WG. Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted July 25, 2019 Share Posted July 25, 2019 (edited) If wanting a single turbo with spool and early torque being your preference over crazy HP than I wouldn't be looking at fitting anything other than a cast. The Treadstone Performance Engineering ones seem best. Modify the wastegate, gasket match, port and polish call it a day. Edited July 25, 2019 by Frank Bullitt (see edit history) Quote Link to comment Share on other sites More sharing options...
Style Posted July 25, 2019 Share Posted July 25, 2019 What about going for a cast manifold? Same thing as a log manifold is it not? Quote Link to comment Share on other sites More sharing options...
Frank Bullitt Posted July 25, 2019 Share Posted July 25, 2019 (edited) Same thing as a log manifold is it not? To my understanding they are both based around the same idea but use different materials hence the difference in name. Cast ideally being an Iron + Nickel mix like the OEM TT manifold and a log manifold being made from tubular. I believe that log manifolds maybe more prone to cracking too. Edited July 25, 2019 by Frank Bullitt (see edit history) Quote Link to comment Share on other sites More sharing options...
Noz Posted July 25, 2019 Author Share Posted July 25, 2019 A log manifold can be cast or tubular. I think everyone is in agreement that the longer manifold designs will show more lag than shorter designs regardless of material type. Quote Link to comment Share on other sites More sharing options...
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