Twitty Motorsports
Probationary Member
- 8
- 8
- May 10, 2021
-
Newport News,
Virginia
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I just notice your "no spray" reference, so sorry to retread that idea.
Some of that I can use but I can only get away with so much. Not trying to get the nascar inspectors breathing down my neck. I've got my weight down to about 2300 which is about as low as I can go. With the new suspension setup I should be able to out corner the Hondas but they have me in the straight. If I can get near the 170hp range I think I can fight them off.here is the mod list for BulletDSM's car when he ran 13.231 @ 106.09 mph
Current mod list for the car:
Trans Modifications
Quaife LSD
NON modular clutch set-up; Audi PP, T4 Dodge disc, Neon Flywheel
Polyuerathane motor mounts (sides)
solid roll stop (front) Energy suspension filled with pl-400 (rear)
Engine Modifications
JE 12.1CR pistons
Crower 3 cams
Stainless valves
.020 off head
5 angle valve job
AMM port and polish (intake and exhaust)
MLS Head gasket
Of course, full rebuild on bearing etc. (stock)
PT Cruiser lifters and rockers
Eagle rods
Outside:
AF/X pulley
MSnS
Mustang 450cc injectors
Mustang 65 mm TB
AMM Intake
AEM adj. cam gears
Mark Peachy air horn intake
Catch can
Mark Peachy LTH
2.5 modified downpipe back exhaust
No power steering /AC
Honda “race” radiator
Snowmobile battery
Summit heat wrap
Chassis Modification
Teins and ad.j KYB’s (1.8 drop) in front
Stock springs adj. KYB in back
Upper strut bar
Interior Modifications
Remove passenger air bag; replace with modified sheetmetal gauge panel
Remove rear seat
Remove passenger seat
Remove carpet
Gut door
Exterior Modifications
Remove wing
Lexan rear window
Carbon fiber hood
Fiberglass hatch
he put down 219.4whp, max tq 175.0. on the dyno. i don't think its with that exact mod list, i believe the dyno was later on and he was running something like 16:1 pistons but i could be wrong.
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i hate to say it but if your going up against k-series engines, your at a disadvantage. a k20a2 with an intake, exhaust and header + a good kpro (hondata) tune will put down numbers like on BulletDSM's dyno.
on top of that the kseries has vtec and vtc. the vtec cams have a set of lobes optimized for the low - mid range and lobes optimized for the high end.
the vtc allows you to optimize valve overlap thru the whole rpm range.
the 420a has none of that
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they probably are running car like the ep3 (2002-05 civic SI snatchback) and RSX.How is it k series swaps are allowed? I mean maybe a b series looks stock in a honda bay.
look into the edz swap, its possible the block is just taller than the 420a's and wouldn't be noticeable if you swapped it
you could also try and shave off some weight from your rotating assembly.
like knife edge the crank, lightweight flywheel,
lightweight rods if you could find some, but i haven't ever seen any
I have an SRT 4 neon engine thats built, was for another project car but im thinking of pulling some of the internals if they will fit the 2.0Hey, look into the rev limiters. I have a Bee-R setup that I only paid around $85 for that allows me to rev to 8500 rpm. Obviously you can't just slap it on a stock car. You need some good rods to prevent snapping, some heavier springs to prevent the valves from floating, and a test pipe to prevent the cat from burning up. But it's worth it to be able to stretch each gear out farther.
Track is 4/10ths mile and yea im running 3rd gear for the most part. I use 2nd when I really need to get around someoneWhat size track are you running? You need to be able to run the car in 2nd instead of 3rd unless you are on a 1/2 mile your probably hitting 5500rpm going into the corners in 3rd i'd guess?
If you want to do the 2.4 swap like dustyboner said then you can run 3rd since 5500 is the upper end of the 2.4's power band so if your looking into that disregard any further info below
To get the car so you can run it in 2nd you'll want to swap to a manual neon transmission instead of the eclipse one. Find one from a 2g neon that has 3.50 final drive gears instead of 3.94 gears. Then also get modern performance PCM. They list them for neons but they also work with eclipses. You can get the rev limiter raised to 8000 rpm. You have to change your rod bearings once or twice a season depedning on how much you race but it's easy enough to do that. I would also highly recommend using ARP rod bolts.
Circle track racing isn't all about horsepower. A lot of it has to do with gearing. I can run my Stock 1993 132 hp N/A 4g63 Eclipse in circles around any cavilaer and most hondas because the gear ratio is just perfect on them and they stay in the powerband. I'm sure you feel the car lug before it takes off coming out of the corners running 3rd because your dropping out of the cars powerband. If your still struggling with keeping up after getting the gearing right then you may want to start building the engine. Put a jeep throttle body on it and bore the intake manifold to match, then add cams, 18 grinds will get you power without a lumpy idle, then if your still struggling build a higher compression bottom end. Building the bottom end is the most expensive to do which is why I listed it last but it will also be the most effective especially couple with bigger cams.
Track is 4/10ths mile and yea im running 3rd gear for the most part. I use 2nd when I really need to get around someone
I have a neon trans sitting in the garage. It's from a 2 door neon with the 2.0. Not sure what year tho. Definitely need a new trans tho, stock one keeps coming out of 3rd gear when I exit the corner hard. Pretty sure the synchros have had enough of the short track life.
Not sure what rpm I'm turning at the moment. Stock tach. crapped out on me and I've been waiting for the adapter for the aftermarket tach I picked up.
Can't go bigger on the tires. Tires have to be bought from the track and all cars in the class run same size.Well some neon trans
You'll want to figure out your RPM. Depending on the track banking you may have to go higher that 8000 rpm to run 2nd gear since your close to a 1/2 mile. More than 8k will require H beam rods to make it last as well as bigger valve springs to prevent float. If your in 2nd gear how far down the straightaway can you get before it hits the rev limiter? If you can get more than 1/2 way a neon trans and 8,000 rpm limiter should be all you need to run 2nd. You might have to go up in tire size a little bit too. Looks like you have plenty of room to go bigger from the pics of your car. I'd do bigger tires last as they will add more rotational weight. But if it's what you have to do to run 2nd it'd be worth it
Some neon trans are 3.94 and some are 3.55. If you don't know what year or engine you'll have to try and find the ID tag. If it has a hydraulic clutch bell housing it's probably a 3.55 unless it came from a Magnum car but that pretty rare.You must be logged in to view this image or video.