Hey,

Well long story short I have spent lots of money wasting my time with a NA build LOL. Ive got a GSR EG. Its got a spoon internal bottom end. The compression ratio is probably about 12:1 give or take. This build recently made 171whp and 130 tq Not bad for a NA with no head work. I was planning on building my GSR head too but for the money it would of cost me to gain 15whp id rather go boost I finally saw the light Is there any possibility of being able to boost this motor as is this summer with low boost. My plan is to start piecing together a turbo kit over the summer/fall then in the winter pull the motor and build the bottom end with all forged internals and a block guard and go boost

Here is the build as is:
Engine
-'94 JDM B18C (GSR)
-Spoon High comp pistons
-Skunk 2 polished intake manifold
-T1R stainless steel 4-2-1 header
-AEM cam adjustment gears
-custom 2.5" exhaust with Vibrant Flat black muffler and Test Pipe
-Short ram intake With K&N Filter
-B&M Fuel pressure Regulator
-Apex'i VAFC 2 fuel/VTEC controller
-Hondata S200 P28 ECU
-94 h22 345cc prelude injectors
-Golden Eagle Cam Seal plug
-Del sol dual core radiator
-NGK Blue wires
-Catch can routed from PCV valve to intake manifold
Transmission
-B16 FDR transmission
-Kaaz 1.5 LSD unit
-Exedy stage 1 clutch kit
-Civic Type R (b16b) flywheel
-Skunk 2 dual bend short shifter

Pretty much if i did get a turbo kit this summer would you boost this set up before i go with the new/forged internals?

Modified by Paul-eg at 11:35 PM 6/26/2008


Modified by Paul-eg at 11:35 PM 6/26/2008

 

use e85 or run race gas if you wanna boost that engine. when you build the block dont use the block guard, it is not needed at all. i know what your saying about wasting money n/a. i did the same thing for a while. now im boosted and have to say it is way better than i thought it would be. i still haven't gotten tired of doing 3rd gear rolling burnouts.

 

Damn race gas may as well just wait.. Any other ideas?

 

i think you'll be fine if you dont go insane with the boost.. i'd find a tuner and see if he is comfortable tuning higher comp with boost.just make sure you get a good tuner..i also know what you mean about all motor made that mistake in the past.

 

Also upon doing some research I found out my compression is more so 11.5:1 give or take. On a compression test it makes 260psi on all cylinders. Does that make any difference for boost? What about a small shot of spray?? How does that work with high comp?


Modified by Paul-eg at 2:16 AM 6/25/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paul-eg &raquo;</TD></TR><TR><TD CLASS="quote">Also upon doing some research I found out my compression is more so 11.5:1 give or take. On a compression test it makes 260psi on all cylinders. Does that make any difference for boost? What about a small shot of spray?? How does that work with high comp?


Modified by Paul-eg at 2:16 AM 6/25/2008</TD></TR></TABLE>

Spray is alright with higher compression, but so are turbos so dont let the higher comp scare you into going that road.

It is higher than most would like but with the tuning we have these days I dont see why it wouldnt work out. Plus worst comes to worst put on a thicker HG to lower a bit more to where you feel alright with.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Paul-eg &raquo;</TD></TR><TR><TD CLASS="quote">Also upon doing some research I found out my compression is more so 11.5:1 give or take. On a compression test it makes 260psi on all cylinders. Does that make any difference for boost? What about a small shot of spray?? How does that work with high comp?


Modified by Paul-eg at 2:16 AM 6/25/2008</TD></TR></TABLE>

At that compression, you're really on the higher side of 12:1. I'd really look into physically lowering compression to something a bit more reasonable like 10.6-11:1. And don't just go by headgasket.. race gas doesn't help if the tune is still not dead on. Replace the injectors to larger units, pistons, and get a respectable turbo if that is your route. Nitrous is another story.. I make it a point to kind of stay away from that stuff. Too many "whoozy" nights.. haaha

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">
Nitrous is another story.. I make it a point to kind of stay away from that stuff. Too many "whoozy" nights.. haaha</TD></TR></TABLE>

LOL
After doing a lot of research I am really considering running a small shot nitrous. Having Hondata makes it seem "easier" to use. When looking for a nitrous kit considering i have hondata s2 what kind of kit would I be looking. From my understanding Dry kits are what hondata recommends and who makes a good kit?

 

Nitrous is pretty expensive now a days. Where I live its around $40-45 for 10lbs and it doesnt last long. what kind of shot where you thinking.

 

50 shot... Nothing big plus it wouldn't get used a whole lot. Just at the track and every now and then for pleasure. Im contemplating gettin this kit http://www.nitrousexpress.com/...1.htm

 

my lsvtec turbo has 11.1 pistions in it and i have hondata s300 tuned by dr.e in fredrick md and my high boost is set at 1.35bar 19 psi if u tune it good u should not have any problems i have 28000 miles on my build


Modified by si the kid at 3:45 PM 6/29/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si the kid &raquo;</TD></TR><TR><TD CLASS="quote">my lsvtec turbo has 11.1 pistions in it and i have hondata s300 tuned by tempest and my high boost is set at 1.35bar 19 psi if u tune it good u should not have any problems i have 28000 miles on my build </TD></TR></TABLE>

Depending upon the turbo used. Hell, I could do 1.35 bar on a small T25.

You did hit the nail on the head, the tuning must be spot on. You also mentioned that the engine was reinforced with better internal components, is that correct in my inference?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by si the kid &raquo;</TD></TR><TR><TD CLASS="quote">my lsvtec turbo has 11.1 pistions in it and i have hondata s300 tuned by tempest and my high boost is set at 1.35bar 19 psi if u tune it good u should not have any problems i have 28000 miles on my build </TD></TR></TABLE>

I would highly doubt that is pump gas. 19psi on most 'respectable' turbos here will make 350-400whp with low compression, which is closing on the limit of the gas. The dynamic compression of roughly 25.5:1 is way higher than 93 octane's ~19-20:1 usable limit. Seeing as how you can do 800whp+ on a Honda with leaded race gas, its not a good idea to try 19psi on a 11:1 motor with pump gas.

Not only does he have that to deal with, but he also has forged pistons/rods (if a true spoon setup) that are not designed for boost. They rarely turbo Hondas, so they maximize if for NA. They will probably hold, but its still a risk.

I would suggest getting a 50trim t3/t04e with a .63ar stg3 turbine, get larger injectors (650-800cc), running 7-10psi, and calling it a day. 300+ whp w/o much of a problem - unless you are cheap.

 

Thanks for all the answers on boosting the set up I have learned lots. I really think though that I am planning on running a 50 shot of nitrous. That way I can still have all the drive ability and hastle I will build a boosted motor down the road. I am thinking about purchasing a nitrous express single stage wet kit and running a 50 shot when at the track and for pleasure. Hondata has the nitrous management system which makes things much easier to tune and run safley. This sound like a safe set up that will make decent #?

 

i am running a gt35 turbo and the car was tuned on 100 octane


Modified by si the kid at 3:47 PM 6/29/2008