1991 CRX SI - need opinions
I mainly meant valvetrain internals, but if your opening it up to do that, and are increasing rpm's and what not, its a good idea to replace the bottom end too. I have seen a few holes in blocks by blown rods.
To redo the head is fairly easy compared to dropping the motor and sending it to the machine shop to be bored and honed decked and then gapping the rings. But if it gives you peace of mind go for it. I guess if you plan to rev that high yes there are plenty of people who blow rods through the block right at the line as they are launching the car.
Well with skunk2 top end, 9500 rpms is easy. Also like i said the engine is already out of the car so its not a problem for me, but might be for others. I never said anything about machine shops, if you want to take it that far then great. I plan on doing all that because like i said, the engine is out, and i want it to be a solid bulletproof DD street monster. even though i probably won't drive it that much as my evo is my DD now.
again,
I have some fairly decent goals with this car.... 300-350 if it makes more power than that and its still safe and a good tune, then great! I don't want to make an engine that spins to 12k
But with a 50 trim, I need a turbo that will allow me to still have a power band. I can't look at my evo and compare it because I have a stroker which made a huge difference in spool....
Its more or less gonna be a skunk2 car - almost everything about the engine and suspension will mostly be skunk2
Again, with AMS's knowledge of AEM - I would be stupid not to run it, I know hondata is cheaper and I am sure that AMS would learn very quickly how to tune it but they are two of the top tuners in the country and 35 minutes from my house, why wouldn't I.
GABE,
What kinda torque did your turbo B16 make
I have some fairly decent goals with this car.... 300-350 if it makes more power than that and its still safe and a good tune, then great! I don't want to make an engine that spins to 12k
But with a 50 trim, I need a turbo that will allow me to still have a power band. I can't look at my evo and compare it because I have a stroker which made a huge difference in spool....
Its more or less gonna be a skunk2 car - almost everything about the engine and suspension will mostly be skunk2
Again, with AMS's knowledge of AEM - I would be stupid not to run it, I know hondata is cheaper and I am sure that AMS would learn very quickly how to tune it but they are two of the top tuners in the country and 35 minutes from my house, why wouldn't I.
GABE,
What kinda torque did your turbo B16 make
I guess you are a typical evo nut swinger and the evo is the only car thats cool 
i think if you got out of your mind the typical honda and actually drove a built a properly setup and tuned honda you might be a bit surprised but thats okay, I don't expect anyone to like my intentions.
I have my evo 500 whp 465 trq
I have the ultimate street setup I feel with my evo and I want something that I can take to the track, beat the **** out of it and if it breaks it breaks and not worry about it, also, cheap to fix....
You aparently dont do much with your evo besides drive it huh? Get an evo ready for a track day or a track car or a drag car and then possibly tell me that a cheaper alternative that is proven fun doesn't start to make a bit more sense

i think if you got out of your mind the typical honda and actually drove a built a properly setup and tuned honda you might be a bit surprised but thats okay, I don't expect anyone to like my intentions.
I have my evo 500 whp 465 trq
I have the ultimate street setup I feel with my evo and I want something that I can take to the track, beat the **** out of it and if it breaks it breaks and not worry about it, also, cheap to fix....
You aparently dont do much with your evo besides drive it huh? Get an evo ready for a track day or a track car or a drag car and then possibly tell me that a cheaper alternative that is proven fun doesn't start to make a bit more sense
haha almost funny...first of all i have two drag cars i play with (98 talon awd and a 2001 Camaro SS) so dont try to tell me with your bull**** honda stuff that ALL i know to do is drive my Evo...And yes i will never own a front wheel drive car for racing purposes..are the honda parts cheap? Yes thats true but that doesnt mean i will go buy an honda so i can go fast!! Its just an opinion and if you posting here to get opinions then take them as they come, not trying to judge people how and what they actually use their cars for, OR take this to a honda forum.
Your right, I made a statement with knowing your back ground - so for that, sorry....
no need to take this to honda forum because its a bunch of 5 year olds for the most part that don't know crap about properly building a car....
Thats why I stick with this forum cuz most people are at least grown up enough...
The reason why I chose the crx is because of how light weight it is... if I had the funds to build another "evo" i would do it in a heartbeat but the evo is just sooooo expensive to build and maintain as a "race" car.. Hope you would agree
no need to get edgy man - im not, I simply thought you were one of the typical evo nutswingers that can't open their eyes to other cars that are very capable of being a good foundation. Again, my apologies for not knowing your back ground...
no need to take this to honda forum because its a bunch of 5 year olds for the most part that don't know crap about properly building a car....
Thats why I stick with this forum cuz most people are at least grown up enough...
The reason why I chose the crx is because of how light weight it is... if I had the funds to build another "evo" i would do it in a heartbeat but the evo is just sooooo expensive to build and maintain as a "race" car.. Hope you would agree
no need to get edgy man - im not, I simply thought you were one of the typical evo nutswingers that can't open their eyes to other cars that are very capable of being a good foundation. Again, my apologies for not knowing your back ground...
B20 block with GSR head with supertech valves and valve springs and a cam of your liking. Its simple and has quite a bit of torque for a honda. Its very trackable. Other that that though it depends on the type of tracking you are looking into doing. What class would you be in? There are restrictions, just keep that in mind.
I would go GSR block for the poor man's type R.
Skunk2 is basically a replica of the ITR intake manifold, both perform but I would go with whichever is cheapest.
Stock ignition setup is good unless you are going high power.
Not sure about e85 but 440cc injectors would suit your power goals with a 225 fuel pump.
I personally would tune with Chrome but AEM is a better tuning platform. Good luck.
Skunk2 is basically a replica of the ITR intake manifold, both perform but I would go with whichever is cheapest.
Stock ignition setup is good unless you are going high power.
Not sure about e85 but 440cc injectors would suit your power goals with a 225 fuel pump.
I personally would tune with Chrome but AEM is a better tuning platform. Good luck.
I know there are restrictions to each class but id look into street modified - I don't wanna get involved with unlimited because I don't have the money to play in that arena...
The only reason why I don't wanna go with a K20 / K24 is because I want to keep the original guages and if I switch over to something electric, I need to get different gauges and have not seen anything in a CRX that has that swap that I have liked yet.
other than getting like a AIM Dash but geez, that thing is like $1500 or something close....
I am set on the AEM - I have way too good of tuners to not use it and its a great EMS
Really the only 3 things that are still in question right now
Engine - could build my B16 head and block - could do a LS Vtec
Fuel - Again, not to sure about people running honda's on corn...
Injectors - I know this depends on if E85 is used or not but I believe someone said 440's or 460's would fit for my power needs..
anyone know how much more torque an LS Vtec would give me over a B16 keeping in mind both would be built...
The only reason why I don't wanna go with a K20 / K24 is because I want to keep the original guages and if I switch over to something electric, I need to get different gauges and have not seen anything in a CRX that has that swap that I have liked yet.
other than getting like a AIM Dash but geez, that thing is like $1500 or something close....
I am set on the AEM - I have way too good of tuners to not use it and its a great EMS
Really the only 3 things that are still in question right now
Engine - could build my B16 head and block - could do a LS Vtec
Fuel - Again, not to sure about people running honda's on corn...
Injectors - I know this depends on if E85 is used or not but I believe someone said 440's or 460's would fit for my power needs..
anyone know how much more torque an LS Vtec would give me over a B16 keeping in mind both would be built...
Problem is, Honda guys still think a 91 CRX is worth $19k.
Well to me my CRX is priceless, as in i would never get back what i put into it, and the fact that i would just never get rid of it lol. I got lucky and got a clean one with a swap for like $4500, but had to drive 6hrs for it. Had to drive 4hrs for my evo.
As far as my torque, i'm not really sure cuz i never had it on a dyno. It's still a work in progress. It will be a skunk2 car. I have the suspension, just getting everything else.
The ls vtec will have more torque cuz its a bigger engine being a 1.8. I plan on running an ls trans cuz of the longer gears, its better suited for turbo than the b16 trans.
As far as my torque, i'm not really sure cuz i never had it on a dyno. It's still a work in progress. It will be a skunk2 car. I have the suspension, just getting everything else.
The ls vtec will have more torque cuz its a bigger engine being a 1.8. I plan on running an ls trans cuz of the longer gears, its better suited for turbo than the b16 trans.
Hey Guys,
im extremly new to honda's, and I am not looking for the honda sucks or honda this or honda that, if you got something to add, great, if not, please try your best to add negative comments...
i bought a 1991 honda crx si with a b16a2 engine and I am thinking of doing a full build and making it a dedicated track car, i think.
i am not sure with what block I wanna go with buy here are the power mods that i am thinking of:
skunk2 turbo cams
full race 50 trim turbo kit - nice price by full race, thanks Eric
ported head
Skunk 2 intake manifold
skunk2 dual springs and titanium retainers
AEM EMS
some type of ignition system - haven't looked into that yet
Quaife Quick Steering Rack
Built transmission
Exedy Clutch with 8 lb flywheel
Possibly water injection
Things I need to know:
will running E85 on this setup make anymore power or the same power as gas?
what kinda injectors am i going to need
would a fully built B16 block be okay or do I need to do an LS VTEC
With the build, I am hoping for somewhere around 300-350 whp on whatever the car can make on a semi safe tune. I think any more power than that in a fwd is going to be a joke and not really be able to hook up....
anyone build a similiar car or similiar setup
anyone use a FR50trim Turbo kit on a honda? what kinda boost and spool and power did you make?
Any help would be appreciated
I don't trust anyone in the honda forums
- id rather stick to my trustworthy group here at evo m
Thanks Guys,
im extremly new to honda's, and I am not looking for the honda sucks or honda this or honda that, if you got something to add, great, if not, please try your best to add negative comments...
i bought a 1991 honda crx si with a b16a2 engine and I am thinking of doing a full build and making it a dedicated track car, i think.
i am not sure with what block I wanna go with buy here are the power mods that i am thinking of:
skunk2 turbo cams
full race 50 trim turbo kit - nice price by full race, thanks Eric
ported head
Skunk 2 intake manifold
skunk2 dual springs and titanium retainers
AEM EMS
some type of ignition system - haven't looked into that yet
Quaife Quick Steering Rack
Built transmission
Exedy Clutch with 8 lb flywheel
Possibly water injection
Things I need to know:
will running E85 on this setup make anymore power or the same power as gas?
what kinda injectors am i going to need
would a fully built B16 block be okay or do I need to do an LS VTEC
With the build, I am hoping for somewhere around 300-350 whp on whatever the car can make on a semi safe tune. I think any more power than that in a fwd is going to be a joke and not really be able to hook up....
anyone build a similiar car or similiar setup
anyone use a FR50trim Turbo kit on a honda? what kinda boost and spool and power did you make?
Any help would be appreciated
I don't trust anyone in the honda forums
- id rather stick to my trustworthy group here at evo mThanks Guys,
Last edited by 1qwikef; Dec 26, 2009 at 07:39 PM.
You have a lot of research to do. Putting together a Honda and Mitsubishi are two different things.
For example Honda's most popular tuning software is supported by Hondata. I've rarely seen Honda tuners using AEM EMS.
But I'd definitley look into a K-Series swap, it's not cheap, but you'll love the car.
Check out K20A.org
For example Honda's most popular tuning software is supported by Hondata. I've rarely seen Honda tuners using AEM EMS.
But I'd definitley look into a K-Series swap, it's not cheap, but you'll love the car.
Check out K20A.org






