Originally posted by digger
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E30 2.9L Stroker ITBs etc build...
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well from the engine specs i'd be expecting bigger numbers. id still expect to be pretty cammy kind of delivery almost a dip in the 3000rpm rnage with the exhaust setup. the Uk 3L with 288 had that with RHD itbs and its pretty common89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Originally posted by ForcedFirebird View PostYou don't think there's enough compression for the cam to pull in lower RPM?89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Well, let's see what the optimized tune will bring.
Also, on the list of things down the road is to rebuild the section between headers and the diff. You can see on page 2 there are v-clamps, so I can pull that section and put another one in.
Any guidance on that reconfigure would be appreciated. The goal is to keep the cat, try to get the drone / noise down, and optimize x-pipe location. May be tough to achieve that but will try at some point.
Digger, how would you configure that section? I can push the rear v-clamps back to get more room, maybe squeeze resonators in there for example.
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Originally posted by mrlucretius View PostWell, let's see what the optimized tune will bring.
Also, on the list of things down the road is to rebuild the section between headers and the diff. You can see on page 2 there are v-clamps, so I can pull that section and put another one in.
Any guidance on that reconfigure would be appreciated. The goal is to keep the cat, try to get the drone / noise down, and optimize x-pipe location. May be tough to achieve that but will try at some point.
Digger, how would you configure that section? I can push the rear v-clamps back to get more room, maybe squeeze resonators in there for example.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Hi People, attempted a remote tune session, only got one iteration down until we realized my TPS signal was all screwed up. Some wiring issue it appears.
However, it is winter in Colorado, first tune is a baseline tune, second tune had some timing pushed up in the 3700 rpm region.
Report 215 peak hp at the wheels, 195 peak wheel torque... With more to come.
Sorry for the crappy image...
Last edited by mrlucretius; 01-12-2020, 02:58 PM.
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good results, must perform alot better that the previously?89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Subbed.
I'm a year behind you with almost the same specs. Mine's a 10:1 compression 2.9L with a Schrick 272 and HD rockers and IE headers with custom exhaust. I currently have it running on a tuned Motronic 1.3 and stock intake well enough to drive it but's clearly not living up to it's potential. I bought the MSPNP for it and I'm hoping to figure out how to get it swapped out by the end of the summer, assuming the COVID doesn't cause the world to collapse. Scheduled for a baseline dyno run next week.
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Hey @Delanoso,
I know we have been messaging regarding your 2.9L build, but I forgot to add: wideband O2 sensor is mandatory. Also a variable TPS should be mandatory.
Right now I am running a MAP only tune but will go to Alpha-N or blended at some point (ie, needing variable TPS); Rama @ RHD says this is very important to improve load resolution, which I believe as MAP signal goes from full vacuum (throttles closed) to atmosphere (throttles partially open) in maybe 1/3 of full throttle travel...
-AlexLast edited by mrlucretius; 07-02-2020, 06:22 AM.
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