# GT2871R vs GT3071R **URL:** \ **Category:** Shift518 Automotive\ **Created:** [October 11, 2009, 5:46pm UTC](https://forums.speedlife.net/t/gt2871r-vs-gt3071r/247497 "2009-10-11T17:46:37Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![Boxersix](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/boxersix/32/6327_2.png) [@Boxersix](https://forums.speedlife.net/u/Boxersix)\ **Post date:** [October 11, 2009, 6:46pm UTC](https://forums.speedlife.net/t/gt2871r-vs-gt3071r/247497/4 "2009-10-11T18:46:59Z")
> [@OFFICIAL Buffalo Sabres Thread](https://forums.speedlife.net/t/official-buffalo-sabres-thread/25170/2619): > > I guess I’m asking how much of a difference is there? If they’re so damn similar than why should I bother buying the 30r. If the 30r does put out a significant amount more power, then how much spool am I really loosing on my 1.6 at 1.5 bar? Well I cannot really speak on behalf of these spools on honda motors, I can say the spool characteristic on the flat sixes is negligible between 28’s and 30’s. maybe 150-175rpm if that, and so small that’s it’s far outshadowed by the additional power made on the p-cars over the 28’s. I have no idea how close tot he choke you’d be on a 28 in your setup that may or may not show the necessity for a 30r comp wheel. --- _[View the full topic](https://forums.speedlife.net/t/gt2871r-vs-gt3071r/247497)._