Now that the G Stock season is coming to the final few events of the year, I am starting to look at some power adding mods for next year as I'll probably make the move to CSP which allows for some more modifications. I thought it would be beneficial to eveyone on the board if we had some centralized discussion about all the stuff you can do the ITR to make a bit more power, or smooth out and improve what's already there. From the Free to the Super-Expensive, if we could list some common improvements and what real world differences you have seen, I think this could valuable to all, but especially to the newbie monkeywrenchers like myself.

If you have any resources, articles, how-to's, or other info online, please post it here as well!

To start off, it seems that one Free mod that can't hurt is advancing the timing to 18 degrees. It would appear that this is an easy way to see 1-5hp gains across the board.

How about Adjustable Fuel Pressure Regulators? Relatively cheap. Any real world differences?

Intakes/Headers/Exhausts/Cats are always popular items. These can certainly get into the pricey category but what gains are typical on an R? Who has specific recommendations on combos that work?

And for all you wiley veterans out there, what things would you look at first to take a stock ITR into the realm of mod-hood?

This board and it's members have an incredible amount of knowledge, let's share!

 

A JDM 4-1 with JDM heat shields is the first mod I would do - most people wouldn't notice this as a 'mod'. A lighter flywheel is an easy mod to hide too.

Then I would do brakes and tires.

 

well what mods can you do in csp? Im not too familiar with that class.

as far as power adders, it seems like an aem does good on an R. Now i cant speak from experience but from the cars that do have them they put out good numbers for the money.

Exhaust, like you mentioned, isnt cheap if you want gains. The Hytech header looks beautious from what i have seen, but isnt cheap by anyones standards.

Im not you but i would just mod your car to the max for g stock and stick with that. Plus grab some millenia wheel s and some r rated tires.

if you dont already have some r tires they will give you the best results for your money. Hope this helped a little.

Mike

 

ITR isn't in GStock next year though, he may not want to be in the new DS and thus is making the move to CSP. Either way, he'll need a crapload of mods to survive in CSP, at least around here, FTD usually goes to CSP cars, and those winning CSP cars are seconds faster than the closest CSP ITRs.

 

If you are moving to CSP--don't even bother trying to add power. Your goal is to delete as much weight as possible and make your car handle as well as possible. Faster corners = faster times.

First, start with suspension/tires. Then, do weight reduction. Those two things will add up a lot quicker than 5whp up top will give you with something like a new header or something.

And if you do make the CSP move, expect to get spanked anywhere besides your local autox lot. Some people this bothers, some it doesn't matter as they just have fun running no matter what.

Again, more power should be the last thing on your mind right now if you want to go faster in an autox lot.

 

Few more things:

I would do an AEM CAI and a SS 4-2-1 header. The 4-2-1 header will remove about 20 lbs from the oem manifold and add midrange torque, where you need it most. Also, it wouldn't hurt to do an exhaust to save some more weight. In CSP, powerwise, all you can do is basic engine bolt-ons anyways.


[Modified by Todd00, 1:46 PM 8/14/2001]

 

I agree with Todd, I'd work on: 1. Weight, 2. Suspension and 3. Driver. Not in that order.

 

Well, maybe you guys misunderstood what I was going for here. I mentioned AutoX merely as a setup, but was looking for suggestions that anyone can use.

I know all about the AutoX setup tips that you guys suggested, but so many people come to the board to look for ways to get more power I'd thought it would be nice to list some of that stuff.

And my car is set up pretty well for GS anyways. In fact, I would have won CSP (or come second by a tenth or something) last time out in my almost stock car.

Thanks!

 

Paul, you should talk to Doug (yellow Mugen R) at one of the local autocrosses. He's got all sorts of goodies on his car and its setup pretty nicely. He took 3rd in CSP behind JD and Scott in their ultra-light and ultra-fast Honda's at the last ASCC event.

If it were me, I would try Street Mod. You could definitely have a chance at winning some of the local events. My times in GS are usually ahead of the SM boys, but Cori in the Supra sometimes is quicker. With Scott and his CRX and JD in his hatch, CSP is impossible to win locally unless those guys dont show.

 

man, around here the CSP boys spank the GS boys by a good 3-4 seconds. I guess it depends, nationally, I doubt you'd win in CSP unless you lightened up that ITR, but who knows

 

Yep, same with our local events. The R really has no chance against a well setup and driven CRX or Miata. We have a national level CRX racer that is usually about 2-3 seconds faster than me. This is more proof that the R should be in DSP!! There is no way it can run with a car that weighs 1700lbs!!

 

What kind of weight reduction is allowed in csp? Can you remove seats, panels etc.?

 

Realisticaly, and this has been discussed before, the R has no chance in either CSP or SM--CSP especially. Ain't no way a 2500lb CSP trimmed ITR can keep up with a 1650lb 84 CRX. Did ytou know that on many courses the CSP cars are reaching speeds (in mph) that are roughly the same as many ESP cars?

SP classes don't allow that many mods when you think about it. You can't ditch seats-all you can do is replace (some) parts with lighter weight ones and do a really good suspension. The key is finding a lightweight car that can be fitted with go-fast parts and engines from the same generation of the car (84 CRX HF can use 87 CRX Si engine and driverain).

SM is the only hope for an ITR out of GS.

 

I was about to say the same thing. Forget CSP and go straight to SM. You can be competitive and do whatever you want to your car in SM. The rule in SM requiring all cars to have (originally had) backseats and not be sports car based (no Porsches, Ferraris...) keeps the ITR competitive where in CSP you have to deal with two seater CRX's, Sprites and other tiny little corner carvers.

 

Oh I know that! They don't seem to show up at Firestone very much though. And on the national level I'd get crushed in any class. Heh heh.

Oh well, we got completely off topic, but at least now I'll start looking up the times and rules for SM to see how I might fare.

Cheers

 

Heh, must be nice to live in a world where Street Mod isn't synonymous with National Champion Kent Rafferty Twin Turbo Supra

In Pittsburgh, it's the opposite....Street Mod is impossible, but CSP we have a small chance at the local CRX contingent (http://1fastrex.com)...sometimes we give andy an good run for his money, and soon i plan on beating him. D and I both had him until he pulled FTD outta his No-TEC rocket at Steubenville, but i was 2 tenths behind him, and third fastest overall (a vette was 1 tenth faster). It's a hell of a challenge, but i want to live in a world where a near-stock Type R can beat a fully prepared CSP car, and i'm doing my part
They certainly do push you to perform better.

 

You guys need to go to a national/divisional event (FYI: Top CSP times beat top SM everytime). Winning in your own back yard is one thing, but trying to do it at a larger event is an entirely different mission.

IMO, never build a car to just be competitive at a local lot unless you plan on only going there for your autoxing lifetime.