Hiya! I'm also running an '89 in STX in the Atlanta region. After running the car the past two years in this class it's becoming plainly obvious to me that I can build a car that will handle as well as anything else in class, but at the end of the day the m20 just doesn't have the power to make the E30 a winning chassis.
Announcement
Collapse
No announcement yet.
SCCA STX E30 Build/Introduction
Collapse
X
-
I've seen people swear up and down on the internet that early, base RX-8s are closer to 2500 lbs. from the factory. Was STX weighed at Nationals this year? That would give you a good idea on how you stack up. Can you really get the E30 to 2500+ lbs. in STX? (I really need to ask Alex what he got his DSP E30 down to.)
Also, the internet swears up and down that the construction of the 195 Toyos that the Civics run is different from the other sizes. :?Ralph Zajac
1989 DSP 325i
Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving.
-- Colin Chapman
Comment
-
Originally posted by cenotaph View Post.....Can you really get the E30 to 2500+ lbs. in STX?..... :?Last edited by bmwguy325is; 09-26-2011, 10:20 PM.sigpic"If one does not fail at times, then one has not challenged himself." -Ferdinand Porsche
The ugly car: http://www.r3vlimited.com/board/showthread.php?t=209713
Comment
-
Sorry, I didn't have much time when I posted last night. A quick run-down of what I am doing in the Atlanta region:
'89 325i, 2dr coupe
3.73lsd
225/45/15 Hankook RS3s on 15x8 Rota Slipstreams
Ground control coilovers with GC camber plates over Bilstein Sport struts. Running spring rates of 450/550
UUC polyurethane LCABs
Stock front and rear sway bar. I've got new OEM front sway bar links, and I've opted to leave the old worn rear links in the rear.
Stock drivetrain. Stock ECU, stock airbox, etc.
I'll admit, I've done nothing to combat weight on the car. If anything, I've added weight over the years. But even if my car went on a 300lb diet, I'm still not sure it would have the motor to keep up with some of the other cars I've been running against. Obviously, if the track is wet the WRX is the car to beat, hands down. But, I'm also getting beat by RX-8s and E36s now too. Before someone jumps to the conclusion that it's my driving, I've hopped into the dominant E36 in our area and went out and won the class my first time behind the wheel, so I feel like I've got decent car control.
Now.. the goods news for 2012 is that the Civics will not be running in STX. The proposed rules for '12 exclude them from our class.
And a video from this past weekend of my best run. This was about 2 seconds slower than quick time for the class.
http://www.youtube.com/watch?v=WjEf6N-eVDU
Comment
-
Originally posted by race2win View PostRear diffs must use stock final drive ratios...so it must stay 3.73 in these cars. However, you can use any limited slip unit within the stock case.- When you say "stock case," do you mean you can swap internals? In other words, is there anything that would stop you from swapping in 4.10:1 gears?
- Is there a restriction in terms of track width? Would anything stop you from running low-offset wheels or using spacers to play with stagger?
- Are you allowed to roll/pull fenders?
- What kind of camber correction are you allowed?
- What wheel sizes are you allowed? Is 15x7" the max?
- Are you allowed roll protection? Not that you're going to rollover, but for the chassis stiffening.
Last edited by Emre; 09-27-2011, 10:43 AM.sigpic
1987 Mercedes 190E 2.3-16: Vintage Racer
2010 BMW (E90) 335xi sedan: Grocery Getter
Comment
-
Originally posted by Emre View PostA few questions:- When you say "stock case," do you mean you can swap internals? In other words, is there anything that would stop you from swapping in 4.10:1 gears?
- Is there a restriction in terms of track width? Would anything stop you from running low-offset wheels or using spacers to play with stagger?
- Are you allowed to roll/pull fenders?
- What kind of camber correction are you allowed?
- What wheel sizes are you allowed? Is 15x7" the max?
- Are you allowed roll protection? Not that you're going to rollover, but for the chassis stiffening.
2. You can use spacers yes
3. Roll no pull
4.Any camber plate that fits in the oem location. So any camber plates out there for an E30. Its different on other cars.
5. Any size up 9.5inches wide
6. braces but a roll cage is way to much weight for little reward and yes you can do this in stock class if you want.sigpic"If one does not fail at times, then one has not challenged himself." -Ferdinand Porsche
The ugly car: http://www.r3vlimited.com/board/showthread.php?t=209713
Comment
-
Originally posted by Nygdup View PostGround control coilovers with GC camber plates over Bilstein Sport struts.
Make sure you are using the Ground Control "Street Prepared" camber/caster plates. They were designed with y'all in mind. If not, we can convert them.
Jay GCHere is my photo gallery answering common questions about Ground Control Suspension, and e30 suspension problems in general.
Ground Control Gallery
The Ground Control facebook page: Dragged, kicking and screaming into social media to see what happens next.
Ground Control facebook page
Comment
-
Oh shit dude you're in San Ramon?
I worked on Alcosta over the summer.. we should all go for a drive sometime...
1991 BMW 318i (Old Shell RIP, Now Being Re-shelled & Reborn)
1983 Peugeot 505 STI
1992 Volvo 240 Wagon
2009 Toyota 4Runner SR5 Sport 4WD
Comment
-
Originally posted by cenotaph View PostI've seen people swear up and down on the internet that early, base RX-8s are closer to 2500 lbs. from the factory. Was STX weighed at Nationals this year? That would give you a good idea on how you stack up. Can you really get the E30 to 2500+ lbs. in STX? (I really need to ask Alex what he got his DSP E30 down to.)
As some have said, 2500 for an E30 might be ambitious, but 25xx should be no problem. Doug Hitchcock told me his car is close to 2600, & still has a lot of heavy items that can be legally removed in the class. Even at 2600, the E30 is 200 lbs lighter than any E36, & at least 100 lbs lighter than the RX8 with more torque. That may not sound like much, but when you combine lighter weight with a much more narrow car, I promise it will get through transitions quicker if set-up correctly.
The way I see it is the E30 will be somewhat course dependant, tighter courses with slaloms & offests will be it's strength, so I intend to set the car up to take advantage of that strength.
Originally posted by cenotaph View PostAlso, the internet swears up and down that the construction of the 195 Toyos that the Civics run is different from the other sizes. :?
However, I must say, do you honestly feel the ST Civics are that fast just because of the tires? Or, just maybe, it has something to do with 8+ years of National developement & collaberation, between literally hundereds of drivers & many, many National Champions??
I understand what some of you are saying regarding the potential competitiveness of the E30 325 in STX, but no offense to those who have tried, throwing some springs/shocks/tires/wheels etc. at one of them for a season or two of regional racing to me isn't a fair comparison of what is possible. Someone mentioned the Vorshlag 318is build, & although there is some great info there, how can they draw the conclusion the car has no hope after one year of developement & one sub-par Nationals result?
Originally posted by InuFayeI guess ive come to the realization that the e30 cant win STX.
Its impossible.
I should probably not dump a shit ton of money into it and just buy an rx8.Mark Scroggs
1985 528e 5-spd Cosmosblau
1988 325i/a 4D Bronzitbeige
2013 Ford Focus ST SCCA GS #49
2013 VW Tiguan SE 4-Motion
Past
1989 325i 2D Zinnoberrot
1991 318i 4D Alpinweiss
1987 325is Alpinweiss
1986 325es Zinnoberrot
1989 325is Diamantschwarz
Drag racing is for fast cars....
Autocrossing is for fast drivers!
Comment
-
Originally posted by Hellabad View PostMake sure you are using the Ground Control "Street Prepared" camber/caster plates. They were designed with y'all in mind. If not, we can convert them.
Jay GCsigpic"If one does not fail at times, then one has not challenged himself." -Ferdinand Porsche
The ugly car: http://www.r3vlimited.com/board/showthread.php?t=209713
Comment
-
Hey race2win. We need to talk more about car setup and development. PM me your email so we can swap some ideas on what we have done and what may/ may not work in the future.
Looking forward to the 2012 season already even though my 2011 season isnt done yet. I have a ton of plans this winter for next year.Dare 2 Dream Motorsports
sigpic
Comment
-
Originally posted by bmwguy325is View PostHay Jay will your SP plates work with some Ohlins hmr's I think is what I have.Here is my photo gallery answering common questions about Ground Control Suspension, and e30 suspension problems in general.
Ground Control Gallery
The Ground Control facebook page: Dragged, kicking and screaming into social media to see what happens next.
Ground Control facebook page
Comment
Comment