Polishing intake runners

***TitaniumTT*** · 11-15-2010, 07:21 AM

Agreed..... to a certain extent...
Smooth transitions are key. I had to open up the RE mani's to the point where I had to cut the gasket. To make sure they were always the same, I built a template out of some 1/4" AL so that I can quickly and accurately trim the gaskets. I then smoothed the runners and tapered them as much as possible. This was on the UIM to LIM. The LIM to the block was closer, but still a little off.

t_g_farrell · 11-15-2010, 12:18 PM

Just poking my nose in here for a second but what about reversion? Isn't that
supposed to be preserved when porting the intakes on a rotary?

11-15-2010, 07:21 AM	#1
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	Agreed..... to a certain extent... Smooth transitions are key. I had to open up the RE mani's to the point where I had to cut the gasket. To make sure they were always the same, I built a template out of some 1/4" AL so that I can quickly and accurately trim the gaskets. I then smoothed the runners and tapered them as much as possible. This was on the UIM to LIM. The LIM to the block was closer, but still a little off. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

11-15-2010, 12:18 PM	#2
t_g_farrell Waffles - hmmm good Join Date: Aug 2008 Location: Huntersville, NC Posts: 757 Rep Power: 0	Just poking my nose in here for a second but what about reversion? Isn't that supposed to be preserved when porting the intakes on a rotary? __________________ 1980 GS stockport, Fat Nikki, RB Dual Facetfuel pumps, Holley regulator, RB Street port exhaust, 2GDFIS, MR2 MK I electric fans, 2G strut bar, relayed fans, lights and fuel pump, LEDs Project Fat Nikki Budget 12A rebuild Video setup < $30.00