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Honda CRX 88-91 - good chumpcar?


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Hi,

 

Honda CRX 2nd gen looks very very cool but I don't see many of them?

 

Could it be a podium car?

 

Car probably weighs less than 2000 pounds and with a B16 swap they have 150hp and less than 200pts. FWD so easy to drive.

A decent amount of aftermarket support it seems like.

 

Honda so I assume they are reliable? 

 

I am not an expert in these cars, what do you think?

 

 

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7 hours ago, revvhappy said:

After running a CRX "grenade" for a couple of years our team finally built Mazda MX3s to be successful. The legend of Honda reliability ends at endurance racing unless you know all of the tricks to keep them happy (lots of consistent high oil pressure and lots of cooling). 

 

Does Hong Norr have the record for most engine changes in a 24HOL race?

 

Hong Norr vs Hong North, what is the difference?

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I suppose its based on the track, small tighter tracks will not use as much fuel, and the light weight is a bigger benefit, like Gingerman

 

But more generally its all about the power adder and fuel... 

 

Upside, can be really light, so its easy on brakes / tires...   Hubs and axles can be an issue...  and they are very easy to work on.

 

Needs a turbo / supercharger or swap to have enough power to hang...  Lack of limited slip diff options depending on your swap...

 

even with a cell you start with 11.9 gallons of fuel, get 2 gallons upgrade to 13.9 and that half gallon of fuel cell...   you have to max out your fuel to get into the decent range, where you can support the horsepower required...  this part really eats up budget on your initial build....  but the stock tank, will only have about 7 usable gallons in it before fuel starve..

 

If they add something for points for fuel, it might get interesting, but because they pretty much require a swap, and that will be engine and trans, you eat 75 points minimum there, you need a rear bar upgrade; you may not have a ton of points for fuel vs cars with enough fuel to feed the swap (like a datsun 280zx or a porsche 914) or enough power to only need fuel (like a camaro or mustang)..

 

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5 hours ago, red0 said:

 

Does Hong Norr have the record for most engine changes in a 24HOL race?

 

Hong Norr vs Hong North, what is the difference?

 

I believe Hong Norr still owns the engine swap derby in 24HOL. The stories of team members who were there are epic. 

 

Hong Norr is the original team in FLA - then a bunch of Atlanta-area friends of theirs started Hong Norrth (North of FLA) and we keep adding to the Norrth stable. 

 

If you dump enough cubic dollars into any car it can become successful but the ruleset of CC is not intended to encourage those costs (or modifications). B18C1 swaps seem competitive these days and there is always the K-swap possibility (TWOth and Rbanks have successful Hondas this year as well as a recent Integra with a swap). As others have mentioned these cars need to be flogged at 95% or more for entire races if you expect podium finishes. It's tough on both cars and drivers to maintain that pace for hours on end. 

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4 minutes ago, red0 said:


Blitz can pull most cars 30+ car lengths a straight running 1/4 throttle. 

 

If I recall correctly they were raced in class D, then EC for a while, now D again.  Since returning to D what is their podium results?   If you are not on the podium what is the point of running less than 100%?

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1 hour ago, Ron_e said:

Uhh, what cars are not flogged at 100% all race?

 

Mine, for one.

 

Anecdotal evidence comparing FTD  to average green lap (yes, I know there are variables like traffic) would suggest that very few cars run 100% for significant portions of a race. If I attempted that pace my tires temps would become unmanageable. The cognitive focus to do that for 2 hours is difficult to sustain. The difference between 95% and 100% is small on a watch but significant for car and driver. 

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Right, so 100% within the driver, car, traffic, tires, temp, fuel, brakes, etc., some limiting factor.  Can all the cars produce a single faster lap?  Very likely with a Randy Pobst behind the wheel.  Will the car last more than 60 minutes if he were to drive like a madman behind the wheel?  I know ours wouldn't go beyond 1 h 30 minutes flat out but we peddle it to make 1 h 55's, but we still drive 100% to the best of our abilities given fuel and temperature constraints.

Edited by Ron_e
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1 hour ago, theblue said:

from memory they are lighter (can be made lighter), more fuel capacity, there were a couple other things.

 

Hatch has the same tank, tad more weight, however it has a slightly longer wheelbase which is seen as favorable by some.

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5 hours ago, Ham Sammich said:

B18c1 swap was mentioned above as competitive.  Where does that put the points on the crx? 

 

Last time I looked the CRX could get 150hp for 50 points...  (the b18c1 is rated at 178, so thats 139 points by my math) need 25 for the trans but you might be able to fit one of those type r lsd's for that price (didnt check to see if you could or not based on the price; of course not a cheap option..)

 

We have a supercharged D16 car, that one makes about that much HP but the supercharger is less points than that swap (and less real world $$ too)...  (we track this car but not sure how it will handle a full chump race; we are upgrading it to a 5 rib blower belt and plan to give it a go at some point this year)...    We are also working on a K swap, there are several K20 and K24 engines right around 155hp... those are all under 60 point swap options now with the normalized weights; for the 100# weight hit, the K swap should make the same or more power for less points and run all day long no problem...  our biggest concern on paper is that we wont make fuel but have yet to get to the track with the K swap to get real fuel numbers.

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1 hour ago, Xph said:

 

Last time I looked the CRX could get 150hp for 50 points...  (the b18c1 is rated at 178, so thats 139 points by my math) need 25 for the trans but you might be able to fit one of those type r lsd's for that price (didnt check to see if you could or not based on the price; of course not a cheap option..)

 

We have a supercharged D16 car, that one makes about that much HP but the supercharger is less points than that swap (and less real world $$ too)...  (we track this car but not sure how it will handle a full chump race; we are upgrading it to a 5 rib blower belt and plan to give it a go at some point this year)...    We are also working on a K swap, there are several K20 and K24 engines right around 155hp... those are all under 60 point swap options now with the normalized weights; for the 100# weight hit, the K swap should make the same or more power for less points and run all day long no problem...  our biggest concern on paper is that we wont make fuel but have yet to get to the track with the K swap to get real fuel numbers.

 

I'll claim absolute incompetence to using the formulas, so it might be me.  I plopped in your 178hp number, got this.  All 3 are 1991 CRX.  This raised more questions for me than it answered.  Is it like this for most cars on the list?

 

Make: Honda
Model: Civic/CRX (EW, HF)
Year: 1991
MPV: 100
Car Weight: 1957
Original HP: 100
New HP: 178
Points Added to VPi: 553
--->NEW VPI: 653

 

Make: Honda
Model: Civic/CRX/delSol (D15)
Year: 1991
MPV: 150
Car Weight: 1957
Original HP: 120
New HP: 178
Points Added to VPi: 553
--->NEW VPI: 703

 

Did one more....What the hell?!?

Make: Honda
Model: Civic/CRX/delSol (D16 non-
Year: 1991
MPV: 200
Car Weight: 2181
Original HP: 120
New HP: 178
Points Added to VPi: 139
--->NEW VPI: 339

 

 

Edited by Ham Sammich
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