Real Street Evo 9 2.2 FP RED BB 650whp MHI and SS housing results
Jan 18, 2017, 07:19 PM
#62
2006 Evo 9 SE Specs
RSP Built 4G63
RSP 2.2 Spec CP 10:1 Pistons
Headgames " Pocket Ported " Mivec Cylinder Head
GSC Billet S2 Cams With Full GSC Valvetrain
Skunk 2 Intake Manifold With 65MM TB
Forced Performance HTA Red BB With MHI Twin Scroll OEM Housing
Forced Performance Exhaust Manifold
Feb 24, 2017, 03:08 PM
#67
Tomei Version 2 downpipe going on in the next few weeks.
Its a 3" DP vs the 2.75" Version 1. The 02 housing is also larger. Its still pretty amazing I was able to make the power I did on a small downpipe. Combination and tuning are everything!
FWIW I measured back pressure on my stock engine/cams and it was 38psi at 30lbs of boost. You really want to avoid a 2:1 ratio as this can lead to excessive heat, knock and other undesirable things.
I don't know if it will pickup much at the top end of things since I'm near the end of the Red but we will see. I've been totally happy with Tomei products, performance and fitment. Back when my car was stock I bolted on the full system and lost 50lbs of weight, and picked up 50 whp /50 Tq on the same tune . Dynojet runs the same week.
http://www.tomeiusa.com/_2003web-cat...ponent_v2.html
Also have another change in the works.
Its a 3" DP vs the 2.75" Version 1. The 02 housing is also larger. Its still pretty amazing I was able to make the power I did on a small downpipe. Combination and tuning are everything!
FWIW I measured back pressure on my stock engine/cams and it was 38psi at 30lbs of boost. You really want to avoid a 2:1 ratio as this can lead to excessive heat, knock and other undesirable things.
I don't know if it will pickup much at the top end of things since I'm near the end of the Red but we will see. I've been totally happy with Tomei products, performance and fitment. Back when my car was stock I bolted on the full system and lost 50lbs of weight, and picked up 50 whp /50 Tq on the same tune . Dynojet runs the same week.
http://www.tomeiusa.com/_2003web-cat...ponent_v2.html
Also have another change in the works.
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deylag (Feb 25, 2017)
Mar 1, 2017, 09:31 AM
#69
EvoM Guru
iTrader: (1)
I don't think that would matter (on the X, the AMS wide mouth and ETS divorced make very similar power). An O2 dump would help, but Tim doesn't like the noise.
Mar 1, 2017, 09:49 AM
#70
Its always a good idea to look at the data and setup before just throwing parts at things.
Look at the data, from all the MHI Red Evo 8/9 Dynojet Graphs I've seen my car makes great power all the way 8000. At smoothing 0 ( minimum smoothing ) The lines are smooth and clean. Backpressure and tuning are being taken into account.
Alot of the other dynojet graphs are at 5( maximum smoothing ) , but still wavy and fall over up top. I'd be interested in seeing them at smoothing 0-3. A small turbo, backpressure, ecu, tuning and fuel are all a factor.
I'm also not going full cowboy and letting it eat 35psi off the hit like I've seen others do. I'm adding the boost in and still getting a broad power curve instead of the peak and fall . This may be easier on the clutch ( 6 puck) and Tcase.
After the new DP is on I'm going to run it again as close as the last time. Then I may just run it full cowboy as well.
Last edited by Abacus; Mar 1, 2017 at 09:59 AM.
Mar 1, 2017, 04:52 PM
#72
EvoM Guru
iTrader: (1)
Sean, you are 100% correct. I also don't need it since my car makes within 10whp as the highest Red car I've heard of on a Dynojet.
Its always a good idea to look at the data and setup before just throwing parts at things.
Look at the data, from all the MHI Red Evo 8/9 Dynojet Graphs I've seen my car makes great power all the way 8000. At smoothing 0 ( minimum smoothing ) The lines are smooth and clean. Backpressure and tuning are being taken into account.
Alot of the other dynojet graphs are at 5( maximum smoothing ) , but still wavy and fall over up top. I'd be interested in seeing them at smoothing 0-3. A small turbo, backpressure, ecu, tuning and fuel are all a factor.
I'm also not going full cowboy and letting it eat 35psi off the hit like I've seen others do. I'm adding the boost in and still getting a broad power curve instead of the peak and fall . This may be easier on the clutch ( 6 puck) and Tcase.
After the new DP is on I'm going to run it again as close as the last time. Then I may just run it full cowboy as well.
Its always a good idea to look at the data and setup before just throwing parts at things.
Look at the data, from all the MHI Red Evo 8/9 Dynojet Graphs I've seen my car makes great power all the way 8000. At smoothing 0 ( minimum smoothing ) The lines are smooth and clean. Backpressure and tuning are being taken into account.
Alot of the other dynojet graphs are at 5( maximum smoothing ) , but still wavy and fall over up top. I'd be interested in seeing them at smoothing 0-3. A small turbo, backpressure, ecu, tuning and fuel are all a factor.
I'm also not going full cowboy and letting it eat 35psi off the hit like I've seen others do. I'm adding the boost in and still getting a broad power curve instead of the peak and fall . This may be easier on the clutch ( 6 puck) and Tcase.
After the new DP is on I'm going to run it again as close as the last time. Then I may just run it full cowboy as well.
Por Que? My car takes 31-32lbs off the hit like a champ with proper timing. For street tune, the torque down low is what makes it fun for me. Track and autocross I calm it down quite a bit.
Mar 2, 2017, 10:00 AM
#73
An O2 dump may help a little bit. Would take less WGDC to make same boost most likely, and might pick up some power. I know at the recent ER dyno here in vegas, we saw about a 10-15whp difference between recirc'ed and dumped stock turbo X's.
Por Que? My car takes 31-32lbs off the hit like a champ with proper timing. For street tune, the torque down low is what makes it fun for me. Track and autocross I calm it down quite a bit.
Por Que? My car takes 31-32lbs off the hit like a champ with proper timing. For street tune, the torque down low is what makes it fun for me. Track and autocross I calm it down quite a bit.
You have a stock engine without mivec. Cylinder pressure/power is going to be different compared to my small stroker, compression, mivec and ported head. My car makes over 400tq easily and I can agree with you on having low end torque on a street car.
Did you have a dyno graph at 0-2 from your recent runs?
Mar 2, 2017, 10:59 AM
#74
EvoM Guru
iTrader: (1)
I fully understand not wanting the noise. Just adding my $.02 that O2 dumps can help power, even on setups where the turbo is already at or close to max flow.
I emailed the dyno operator, awaiting response.
I emailed the dyno operator, awaiting response.
