Question about AutoX classes
Great to hear Aaron, your input on this type of driving, setup, turbo, etc. will be much appreciated as always. You may want to consider 285/30 R comps in SM though. I'm going to be in SM too, eventually when my car is finally ready. HTA Green?
A green on a 2.0l will be too laggy. Hell, the 16g on a 2.0l is a bit too laggy for anything other than big courses. Id suggest the new HKS turbo or BBK-Lite for a 2.0l, and the same or maybe a BBK-Full/Green for a 2.4l.
I personally have been using a 2.4l and 16g for 4 years now and its awesome. I dont even run full power cause it gets too easy to make mistakes overshooting corners, but on the slow stuff doesnt phase the Talon. It pulls out of everything. 20lbs by 2500rpms, yes please.
I personally have been using a 2.4l and 16g for 4 years now and its awesome. I dont even run full power cause it gets too easy to make mistakes overshooting corners, but on the slow stuff doesnt phase the Talon. It pulls out of everything. 20lbs by 2500rpms, yes please.
No offense, but top "Local guy" doesn't mean much to me without comparing to National Guys. BTW, look at what they run..I bet you'll find smaller turbos :P
I'm a top "local guy" in SM with 3 regional championships, doesn't mean Id stand a chance at nationals.
I'm a top "local guy" in SM with 3 regional championships, doesn't mean Id stand a chance at nationals.
Top national guy (Chris Mayfield) is running a BBK-Full and 500+whp IIRC
Jarrod Hoops (Evolutionary) who got 5th I think, runs an FP Green
Jarrod Hoops (Evolutionary) who got 5th I think, runs an FP Green
Last edited by RJones; Oct 8, 2010 at 08:34 AM.
Hmm, well I guess Ill eat my words then 
I ran the EvoIII on a 2.0l for a couple years and it was much to laggy. Had to really get back on the throttle early to get it spooled. With the 2.4 everything is pretty much instant.
Maybe it has to do with the Evo spooling turbos faster than DSMs do, not an apples to apples comparison.
I ran the EvoIII on a 2.0l for a couple years and it was much to laggy. Had to really get back on the throttle early to get it spooled. With the 2.4 everything is pretty much instant.
Maybe it has to do with the Evo spooling turbos faster than DSMs do, not an apples to apples comparison.
Well Ill be sticking to BSP so no worries about which turbo to run. I just need to get some big injectors and hooked up with that ER/JB/MSR tune. Then its time to dump the rest of my money in suspension and tires.
Cant be going from my Talon to Evo and be slower
Cant be going from my Talon to Evo and be slower
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Joined: Sep 2009
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From: Fort Collins, CO
In my opinion, our SM car was easier to drive on the BBK than it was on the stock turbo. The stock turbo surges so badly on spoolup that it makes it really hard to drive out of corners smoothly. Then again, we were running 35+ psi, which may have exacerbated that problem. We were seeing over 400 ft lbs of torque at the wheels, up here in Colorado.
The BBK was a little more linear. At sea level, it spools faster than the stock turbo did up here in Colorado, and I never felt like I was 'out of boost.' You do have to plan ahead and get in the gas early, but that's true with any turbo car to some extent.
In my opnion, the best autox setup would be a 2.3 or 2.4, BBK Full, and 4.11 final drives. I think this would give you the broadest torque curve and it keeps the stress on the driveline lower (especially the motor/synchros. We had our rev limiter set at almost 9000 rpm with the 2.0 and I still wanted more at times.)
BSP is a great place for the Evo. It's competitive there, and you can do a lot to make it handle much better without completely ruining the streetability. It will be hard on front tires, though, thanks to the weight distribution and drivetrain layout.
The BBK was a little more linear. At sea level, it spools faster than the stock turbo did up here in Colorado, and I never felt like I was 'out of boost.' You do have to plan ahead and get in the gas early, but that's true with any turbo car to some extent.
In my opnion, the best autox setup would be a 2.3 or 2.4, BBK Full, and 4.11 final drives. I think this would give you the broadest torque curve and it keeps the stress on the driveline lower (especially the motor/synchros. We had our rev limiter set at almost 9000 rpm with the 2.0 and I still wanted more at times.)
BSP is a great place for the Evo. It's competitive there, and you can do a lot to make it handle much better without completely ruining the streetability. It will be hard on front tires, though, thanks to the weight distribution and drivetrain layout.
^Good info. IIRC when Daddio was racing his RS and had an AMS setup, he was on some kind of 50trim variant on a 2.0. Most people would think that's a bit on the big side for Auto X. I know there are some DSMs with strokers, but AFAIK nobody is nationally competitive in SM with an Evo who has a stroker so far. It seem to be the general consensus that reducing your RPM and increasing the likelihood of needing to shift will cost more time than the early torque/spool affords. If you know otherwise please let me know, as I've always wondered if this held true.
On a 2.0, I wonder if the BBK Lite will have any real time advantage in autocross over a Full.
On a 2.0, I wonder if the BBK Lite will have any real time advantage in autocross over a Full.
Last edited by hokiruu; Oct 14, 2010 at 10:14 AM.
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Joined: Sep 2009
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From: Fort Collins, CO
^Good info. IIRC when Daddio was racing his RS and had an AMS setup, he was on some kind of 50trim variant on a 2.0. Most people would think that's a bit on the big side for Auto X. I know there are some DSMs with strokers, but AFAIK nobody is nationally competitive in SM with an Evo who has a stroker so far. It seem to be the general consensus that reducing your RPM and increasing the likelihood of needing to shift will cost more time than the early torque/spool affords. If you know otherwise please let me know, as I've always wondered if this held true.
On a 2.0, I wonder if the BBK Lite will have any real time advantage in autocross over a Full.
On a 2.0, I wonder if the BBK Lite will have any real time advantage in autocross over a Full.
The BBK Lite might be a little better than the full on a small/tight course... But on any nationals-style course I would run the BBK Full.
