AutoBox said:
oh and there are slight difference be tween certain sr motors.....doe sthis se-r have a gti-r engine in it or the stock sr20de? the gti-r had individual thorttle bodies and better flowing head......also othe rmodifications to the block besides lower compression of course..i think it had oil groove but i havent looke dat fwd sr motors in a while
the GTiR had individual throttle bodies, mech lifters, and lower compression. i already mentioned the oil squirters. it had a beefier set of rods and bearings. the GTiR engine, however, is so rare that it isnt even really worth mentioning, but since you have, i will let you in on it.
the GTiR is the "54C" variant. the individual TBs help, but the head doesnt really flow any better. the cams, being mech lifter, are limited in aftermarket availibility (it was the only solid lifter SR20 other than the even rarer VE model which with its Neo-VVL, which has 3 lobes per valve like VTEC, makes its cams incompatible). the "high port" head is believed to flow the best. the 54C's head is not like the high port or the low port, kind of in between, but the high port's direct path to the combustion chamber seems to breathe the best.
stock block record of 649whp is currently held by a regular "53J" variant, however. the highest 54C is 424wp, held by J Banach. Chris Allen AKA "shaggy" has the highest 54C power, at 497whp, but this was with forged pistons (the 54C still had cast pistons, and therefore was limited to the same power levels despite its beefier main bearings and rods) and carillo rods. the 740whp JUN hyperlemon had a 2.2L stroker kit, a mildly ported head, and some other stuff. because of the cast pistons, in stock form, all SR20 variants were limited to about the same maximum power before the pistons were blasted apart.
the individual throttle bodies did improve top end breathing and throttle response, but were not as good as a good aftermarket intake manifold such as the GReddy unit or O2induction's sheetmetal manifold.
the 54C was also extremely expensive, expect to pay about $2000 for one in good running condition. my JDM 9.5:1 motor was $300. since they have about the same power capabilities, which would you choose?
i have a stock 9.5:1 NA variant with the high port head. FWD of course. i bought the SE-R new, thats why i have it. the 240 was much more expensive and the SR20 swaps werent too easy 6 years ago.
and, yes, the Neon does have more low end torque, but it also has a Quaife Helical LSD (i have a clutch type), which is not very useful for drag racing (it still allows a one tire fire) and adding more tq just makes more wheelspin in a FWD car. the Neon also only revs to 6500 rpm. my car revs to 7750. the neon makes boost about 600 rpm sooner, and makes a little more tq. my car, however, has a much wider powerband (4500-7750 is better than 3900-6500) and the boost doesnt come up as violently as the neon (making traction easier). my car also has shorter gear ratios, offsetting the tq disadvantage with gear multiplication (tq=FR) the car has run an 8.3 @ 99 in the 1/8 mile on 205-40-17s and i will be on some bigger tires for this event.