Brettus turbo 11
5 Attachment(s)
Thought I may as well start a new thread for this seeing as there are significant differences between this set up and the last .
Engine : Doweled RX7 (deep) ALS apex seals Brettspeed modified centre port runner (removed after unsuccessfull tests) Rx8 performance engine mounts Turbo : Rebuilt Greddy 60-1 compressor wheel (same as BNR) Clipped turbine fabricated 60mm intake tube internally polished Greddy outlet pipe 600x260x75 Intercooler Gearbox : 5 speed ex JDM RX8 Ratios : 5 speed vs 6 speed g/box 1/3.483..............3.76 2/2.015...............2.27 3/1.391...............1.54 4/1.00...............1.19 5/0.76...............1.00 6/.....................0.84 Clutch Exeddy stage 1 Fuel : Walbro 255 pump yellow/yellow/blue injectors upgraded 06/2013 to yellow/blue/uncapped yellow 380/480/600 Tuning : Mazdaedit/Brettspeed Engine is dressed and almost ready for install at time of writing . Currently just tidying up a few loose ends. Goals : 350 WHP on 11PSI 12s 1/4 mile last longer than the last engine : 40,000 miles |
good luck Brett.
|
Nice work, did you grind those seals yourself? Glad to see you are almost done.
|
Looking forward to live online tuning session Brett has promised.
LOL Ok ... he didn't Looks awesome Brett |
free maps!
|
looking forward to this thread. I am a little surprised you went with the 5 speed. I would have thought that the s2 trans and a 4:77 diff would have been used. See how much I know?
|
Thanks for keeping us updated, interested to see final results.
|
Originally Posted by olddragger
(Post 4403265)
looking forward to this thread. I am a little surprised you went with the 5 speed. I would have thought that the s2 trans and a 4:77 diff would have been used. See how much I know?
|
good luck Brett. Nice work, did you grind those seals yourself? Glad to see you are almost done. Looking forward to live online tuning session Brett has promised. LOL Ok ... he didn't Looks awesome Brett free maps! looking forward to this thread. I am a little surprised you went with the 5 speed. I would have thought that the s2 trans and a 4:77 diff would have been used. See how much I know? Thanks for keeping us updated, interested to see final results. |
Looking forward to seeing if your magical Brettspeed centre port runner works
|
I do love my 6th gear for the interstate cruising! But certainly understand your position and in that case the 5 speed makes good sense.
For 350 rwhp I thought you would need more injector flow than yellows and blues would give? Are any of them un capped? Really looking forward in seeing what kind of exhaust setup you end up with also. Are you going to be doing any oil passageway/regulator work? Any oil pump work? I know yall have cool temps where you live ( beautiful country!) but any waterjacket work to be done? Cam ( Pettit racing) swears by increasing the coolant flow around the sparkplugs. I actually have a "freezeplug" looking plug between the lead/trailing sparkplugs where he accessed the coolant jackets and did his work on increasing the coolant flow in that area. I thought I would share that with you just in case you may be interested in doing the same. At this power level are you still planning on using the oem ignition coils? I have a feeling this will be a long and informative thread. |
Originally Posted by olddragger
(Post 4403455)
I do love my 6th gear for the interstate cruising! But certainly understand your position and in that case the 5 speed makes good sense.
. The 5th in the 5 speed is taller than 6th so i can see it being better for cruiseing . All the other gears are taller - which i think will be a good thing as well .
Originally Posted by olddragger
(Post 4403455)
For 350 rwhp I thought you would need more injector flow than yellows and blues would give?
Are any of them un capped? .
Originally Posted by olddragger
(Post 4403455)
Really looking forward in seeing what kind of exhaust setup you end up with also. Are you going to be doing any oil passageway/regulator work? Any oil pump work?
Originally Posted by olddragger
(Post 4403455)
I know yall have cool temps where you live ( beautiful country!) but any waterjacket work to be done?
Cam ( Pettit racing) swears by increasing the coolant flow around the sparkplugs. I actually have a "freezeplug" looking plug between the lead/trailing sparkplugs where he accessed the coolant jackets and did his work on increasing the coolant flow in that area. I thought I would share that with you just in case you may be interested in doing the same. . Do you have that OD ?
Originally Posted by olddragger
(Post 4403455)
At this power level are you still planning on using the oem ignition coils?
. |
subbed
|
Will you be posting pics of the old engine once torn down?
|
Originally Posted by 9krpmrx8
(Post 4403629)
Will you be posting pics of the old engine once torn down?
|
Cool, I have yet to see a boosted one with this many miles torn down.
|
Yep I do have that cooling jacket mod Bret. Cam told me it prevents the housing cracks around the sparkplugs that are sometimes seen.
Sorry I didnt realize you had the d 585's..... You may want to ditch the oem midpipe--gutted or not. I think you will find that there is an advantage to a true 3 inch exhaust and one with straighter angles. I will pM you. |
finally, a thread worthy of this forum area
|
Originally Posted by TeamRX8
(Post 4403786)
finally, a thread worthy of this forum area
And no Isuzu V6's!!!!!!!!!!!!!!!! :rock: |
Found a crack in the Greddy manifold INSIDE it on the wall for the siamese port . Could delay things a bit getting this welded up .
|
Sucks about the manifold, good luck sounds like a promising set-up
|
Originally Posted by Brettus
(Post 4404214)
Found a crack in the Greddy manifold INSIDE it on the wall for the siamese port . Could delay things a bit getting this welded up .
|
Originally Posted by Slidin8
(Post 4404245)
Or just get a tubular manifold made ;)
|
Originally Posted by Brettus
(Post 4404249)
Ha - I would like it back on the road soon .....
Slightly off topic, but since you track your 8, what is you wheel,tyre and suspension set up? If you don't mind me asking |
Good luck with the new build, look forward to seeing progress, and the tear down of the old engine, they may be a whole other thread though!
I didn't know JDM had 5 speed rx8 trannys, is it really a rx7 tranny? |
All times are GMT -5. The time now is 07:09 AM. |
© 2024 MH Sub I, LLC dba Internet Brands