Stocker

Okay so since the 2 liter came out there has been a general concensus that the 1.8L intake cam has been a mild upgrade for the beta 1 engine but AFAIK nobody ever did a before/after dyno comparison.



I'd be willing to paypal a member in good standing maybe $5 or $10 just to satisfy my own personal curiosity.



If somebody you trust from here said they'd do it, would you help pay to get their car on a dyno for a back-to-back comparison?



Would you be willing to take your 2.0L Beta 1 Elantra or Tiburon to a dyno shop, reset the computer, do a few pulls with the 2.0L cam, change the cam, reset the computer and do a few pulls with the 1.8L cam within hopefully the same hour on the same dynomometer?

Rd1cuda

Count me in....I would be down! I'm curious to see the difference it make's in the HP & TQ numbers.

rik'n'vik

I have the F2Evo variant of the RD Coupe - these as standard have the 1800 inlet cam inside. I've seen a few Evo's dyno'd and the gain is typically 5-7Hp across the range over a comparable (age and miles) SE - which will give you some idea of what you can expect. The real gain with fitting the 1800 cam to a 2L is in the torque, realising improved midrange gains of around 20-30lbft or so from the longer duration.



As far as I know, a back-to-back test of 1800 and 2l cams has never been done though - so I hope this happens, it'll be interesting to get a direct comparison. Anyone fancy doing it with an XD (BETAII) cam as well

wheel_of_steel

I'm somewhat curious, better be under strictly scientific conditions and with plenty of photos though. How many RD owners are baller enough to front $5 though?

Stocker

well when they were a decade newer maybe . . . now they're not the high-end expensive purchase they used to be

Tibbi

I have 3 extra cams laying around, one of which is a 1.8. Is there a way to tell the difference between the 1.8 and 2.0 by looks alone?



I think this is well worth the science.

Stocker

do they all have part numbers on them? They'll look pretty much the same to your eye, but a micrometer could tell the difference

2FastElantra

Just tell me where to sign up. Would love to donate to the crooked H cause. Even tho I have a 1.8 with a 1.8 cam...

Tibbi

2 of the 3 say 3D, one of them says 2D. I assume that the 2D is the 1.8l.

They have a little corrosion, but they'll clean up fine.















All 3 have different numbers printed on them:





#= 970121a





#= 971118a





#= 001112a







970121a was the 2D.

The oily one came out of the head I'm rebuilding. It should be a 2.0

2000J25SP

I have two 1.8 cams and one 2.0.



2.0 cam: J2, 2E, Si, 17-13, C 990820A (MY 2000 Elantra)

1.8 cam: J2, 2D, Si, 21-38, A 971125A (pulled from 1998 Elantra)

1.8 cam: J2, 4A, Is, 27,88, A 970304B (Pulled from 1997 Tiburon)



The six digit number is obviously the build date. (YYMMDD)