B18C JDM P72 GSR - JRSC build - NEED INFO!

BlackDC2

VTEC MANIAC!
Hi,

Picked up used JRSC for ITR/B16A application for 750eur, full set as it seems... will be putting this on to my GSR in a few months, but first got to rebuild it just to be safe.
Seen gaskets needs replacing and oil to be changed as well, will have to strip my JRSC soon and see whats inside...

I know it just wont bolt on to GSR head as of different bolt pattern so I'm about to buy a rebuilt ITR head for some handy cash and then do the SC build... in other way I could just weld GSR intake flange on to the SC but I think I would be better of doing head swap... what would you say about this? (rebuilt ITR head price being asked is 300-400eur)

My current compression ratio is 10.6 as JDM GSR and whole motor is bone stock, all I would be adding to it is block guard, ITR head, and not sure which gasket to go for, 1 layer 2 or 3 ...
with B18C P72 block assembly and B18C5/ITR head with 1 layer HG I should have ~10.86:1 compression
with 2 layer HG should have ~10.53:1
with 3 layer HG should have ~10.37:1

which would be more reliable and more worth going for as for for up to 8-9psi of boost on stock internals?

would I need to upgrade my injectors with fuel pump and fuel rail or I could still reuse all as it is and do build... my goal is ~220whp with as much torque as possible... but if possible but not to go too wild as its my DD and would like to have average MPG, or is the MPG concern out of topic when going SC?

need all of you opinions seriously people...

will have some pics later of what I've got
 

Vtec-Pwr

OPP-O1-OH-DC2
Exactly what i had on my integra. B18C GSR with bolts on and supercharged. The motor was bone stock with stage 2 clutch, ITR 4.4 FD tranny, at 7.5 psi the car made 220whp and 161wtq.

I upgraded fuel pump and injectors (a must). Since mine JRSC was made for GSR so i didn't have to do the head swap. I reccommend you to do the cooling system because these supercharger are known for their heat issue.

Hope this help a little
 

BlackDC2

VTEC MANIAC!
What cooling system? Like water spray?
Hondata IM gasket is on the list too ...

what like was it on MPG wit JRSC?
 
Last edited:

Vtec-Pwr

OPP-O1-OH-DC2
http://www.honda-tech.com/showthread.php?t=1214810&highlight=supercharge+set+running

a lot of info being shared in the link. Cooling system uses methanol to cool down the supercharger. It's fine if you dont have it. but when you are at the track or traveling a long distance where the motor has been working for a period of time, it would get really really hot.....

prolly like 19/25 i dont really care much about it
 


BlackDC2

VTEC MANIAC!
Its MAGNUSON A520 , as per images it looks near the same as EATON M62 ... anyone knows anything about them?

Is the overheating problem still persists even if not boosting over 7-8 psi and having trips like 100-150miles non stop at average 60-80mph?

What I was really wondering if I had set up water spray system on to top of the intake manifold and on to the supercharger casing from underneath it, activating one by the switch or by the rpm/throttle position lets say to activate when over 3000rpm ...
 

BlackDC2

VTEC MANIAC!
BlackDC2 said:
Is the overheating problem still persists even if not boosting over 7-8 psi and having trips like 100-150miles non stop at average 60-80mph?

What I was really wondering if I had set up water spray system on to top of the intake manifold and on to the supercharger casing from underneath it, activating one by the switch or by the rpm/throttle position lets say to activate when over 3000rpm ...
Click to expand...


bump on this one
 


avasdad

New Member
I have been looking around at cooling my intercooler on really hot days and have found that some windshield cleaner contains methanol. I am looking into it as a cheaper way to cool and already have the way to deliver it
 

BlackDC2

VTEC MANIAC!
avasdad said:
I have been looking around at cooling my intercooler on really hot days and have found that some windshield cleaner contains methanol. I am looking into it as a cheaper way to cool and already have the way to deliver it
Click to expand...

I presume you're going to take a spray on the intercooler or in to the air intake after intercooler?
 

avasdad

New Member
BlackDC2 said:
I presume you're going to take a spray on the intercooler or in to the air intake after intercooler?
Click to expand...
Yes. I am thinking about spraying the intercooler. I have seen people using Nitrous but problem to me is keeping the bottle filled but with the washer fluid it is easily available
 

avasdad

New Member
I did do a Vtec conversion on my Teg, Added a turbo, Half size radiator, shunk2 intake manifold and throttle body and I do 3 hour drive all the time and have never had any overheating problems at all. Mine is sitting at 269whp. I know I have read a lot about overheating problems but I myself havent had those problems
 

Vtec-Pwr

OPP-O1-OH-DC2
BlackDC2 said:
Is the overheating problem still persists even if not boosting over 7-8 psi and having trips like 100-150miles non stop at average 60-80mph?
QUOTE]

mine was at 7.5 psi at the time. After 2.5-3 hrs of driving, it did get really hot and i stopped to cool it down and drove again. The entire trip was 5 hrs and i averaged about 65-75 mph. So to answer your question, yes you'll be fine with 100-150 miles range in 60-80mhp speed limit.
Click to expand...
 

IntegraLS-T

Member
First off you can re-drill the jrsc manifold to fit the gsr head, the b16 jrsc manifold and gsr jrsc manifold are made from the same casting, I think you'll need to plug a coolant hole, it has been done before look on honda-tech. Next, I would only use an oem head gasket, 3 layer. If you are not going to upgrade your injectors and fuel pump, you will at least need to upgrade your fuel pump and run the jrsc fmu and retard the distributor. The better option is to do the pump and injectors and have the car tuned. The jrsc blows hot air, it gets too hot around 8 or 9 psi, if you are not going to push the charger that hard you should be fine without an after cooler or water or meth injection. The JRSC thread on honda-tech has lots of info, if you want to know anything about what you should do read through that thread.
 
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