Whats up guys. Im really thinking about purchasing an ITR in a yr or so but I heard that FI isnt good for the B18C5. Why not? If I have to go all-motor to enjoy an ITR then I will, but I'd love to have a turbocharged car. What are some of yourr opinions? All-motor ITR; turbo GSR? Thanx in advance.

Sam

 

I've heard the same thing. If I could afford one I wouldn't want to risk puting anykind of FI in it. Just my opinion though.

 

FI isnt good for a stock ITR because of the already high compression ratio. if you wanted to boost higher than 10 psi you would have to replace the pistons.

i say if you want a FI car, get an LS or GSR. if you want an NA performer, get an ITR.

 

Well i agree with all you guys BUT...i do have a zex kit on my car and i absolutely love it....its just a simple 55 shot..but with my bolt on's my car runs high 13's all day...i even used the 75 shot one time to get mid 13's....i dont use the bottle everyday so if you are gettin some juice at least be nice to the car and dont use it all the time...as for FI ..its not made for the ITR...go with a Turbo LS i say....you can boost the hell out of it and get the bonus of the strong ass stock Honda bottom end...itll run 13's with decent boost and 12's with more work done all day...although i have seen more and more peeps slap on that drag gen turbo kit on ITR's gettin damn good power out of them..if you want the ultimate in performance integra's for sure the R..if you want sumfin to boost..get a diff teggy...do what YOU want to do... im kinda torn...i love FI as well...but i love the all motor R man....sigh..anyways...:thumbup:

 

Stock compression ratio on an Integra Type R is 10.6:1. Ideal compression for a turbocharged application is 8.5:1. By running such high compression, when you run moderate to high boost, you risk leaning out your engine too much... leading to detonation, which will blown pistons, and bend rods and valves. The Drag Gen 3 kit is the only complete turbo kit available for the ITR, and it runs a relatively low 6 or so psi. I wouldn't recommend going over 8 psi (even running 8 requires tons of air/fuel tuning on a dyno). It's all about fuel management.

Any higher boost, and you'll need forged internals and lower-compression pistons.

 

There's no real 'ideal' number out there. A lot of DSM guys bump theirs up to 9:1 and 9.5:1 to make more power.

 

True, it's just that the most commonly used compression ratio amongst stock turbocharged cars (including the DSM's) is 8.5:1 But if you can bump the compression, boost and not detonate you're flying down the track :thumbup:

 

im running 10:1 compression on my itr, putting 28lbs of boost to it. but it does have a fully built motor. with a good tuner u can maximize everything and not sacrafice low end or off line perf...
we ran a stock r on 10lbs it made 278 whp for about 15000 miles then cracked one ring...... it was tuned by one of the best though

 

Stock and ideal should never be said in relation to the same thing.

 

if u got a drag III kit, im pretty sure it would b fine if u ran 6psi or so, also if u want to lower copression a bit u could just buy a thicker head gasket.....right?


Chase