m4xwellmurd3r

Thats gonna be a fun setup. Are you just gonna run stock cams?
I dont know much about restrictors but I looked it up a little. Some people said with a -3an line you dont need one, but our engines put out so much oil pressure (if you use an obd2 pump which you should be for the higher oil pressure) you should still use a .060ish restrictor. Some people stated that even with a -3an line they still needed a restrictor

TheShodan

iTrader: (14)

This is correct, gentleman. The criteria for running an oil restrictor is based upon oil pressure under cold start, where idle rpm oil pressure is at its highest, especially for journal bearing turbochargers which are much more oil dependent.

For honda b-series engines (regardless of "obd 1" or "obd2" oil pumps) they require an oil restrictor of 0.060" to about 0.065" for cold start oil pressures of 78psi and higher for Garrett and Garrett "styled" turbochargers that utilize a Garrett-like internal structure. (which includes Precision, Turbonetics, and the like). This ensures that the oil pressure at the turbo's entry point is regulated to about 40psi, regardless if it is -3AN or -4AN sized line.

Borg-Warners, Holsets, and similar applications that are more diesel engine-based do not necessarily follow that oil pressure requirement.

torkh22a

So do diesel based units not need a restrictor? Or what do you mean by they don't follow the oil pressure requirements?

m4xwellmurd3r

I think hes talking about regulating them to about 40psi.
Diesel turbos probably have a different pressure requirment

I found a post regarding holset hx turbos.

During operation under load they require a minimum of 30psi and maximum of 72psi. Cold start pressure is permitted to be as high as 88psi

wantboost

iTrader: (2)

Diesels run much heavier oils with a ton of additives. i can't remember what oil pressure our Cummins used to run but the cartridge style Holset uses is very very beefy, after all they are designed for 500,000 miles of service.

I've seen people run Holsets dry by accident and never have any issues, they don't even show signs of wear.

remember most turbo diesels run very high pressure ratios almost constantly under load. I think the 5.9s ran up to 30psi so the shaft bearings and thrust bearings have to be very strong to take such high rotational loads.

also most diesels suffer from high oil contamination from soot, blowby, and the sulfur in the fuel so the turbo also has to be able to operate with that oil degradation. the oil passages on most turbo diesel Holset cartridges are significantly larger than the typical Garrett, Garrett style cartridge.

averyvm

iTrader: (1)

Nice information. I appreciate this.

TheShodan

iTrader: (14)

Hai. Ozyozu desu...

brokensol

Hey can someone please tell me are honda valve guide seal installers the same for vtec and non Beaverton e 're I look ppl only sell vtec seal installers so I'm assuming one tool does all but would like confirmation thanks guys

brokensol

Vtec and nonvtec sorry

hon2984

I guess i will chime in.


B18B stock block, stock head,300,000 miles or so. Been in 3 different cars
GSR trans, ITR LSD, LS 5th gear
JG intake mani
Inline pro turbo mani
Godspeed 57 trim .48AR
Goautoworks piping modified by QuickShift FAB
QuickShift FAB downpipe & wastegate dump
S300 Tuned by Dragsol

269whp 13.5 psi on a mustang dyno









best pass to date 12.10 @ 107

crex23

Can you post a rundown of your timeslip? Also what size slicks are you using?

hon2984

24.5 x 8.0 7.5 psi 6000 launch 7100 rev 1st-3rd 7500 rev 4th (just trying to pull a higher mph, considering I'm out of gear in 4th)


r/t.095
60' 1.83
330 5.103
1/8 7.809
mph 89.16
1000 10.105
1/4 12.105
mph 107.6

98civicboy69

(the right side)
Nice run hon2984
That looks pretty similar to mine. My R/T is horrible but hey first time on slicks EVER, so im very pleased and hoping to break into the 11's soon!

LightningTeg

Couldnt tell you mods on either of these cars, but I think the ACR is stock and the Z06 is a 600whp+ car. I'm having issues making more then 26 lbs currently, so the car is essentially only ~540whp =(. I needed that 60whp tonight.

55-160

TravisBiggie

I'm in a pickle again...

Vtec, or non vtec??

I miss my ls terribly.. I have all the **** needed to go vtec..

If I can hit 500whp with the following, I'm going to sell my vtec setup and go non vtec.

81mm sleeved block
ls crank
stock pr8 head
aftermarket intake manifold
crower 403s
springs/retainers
1000cc injectors
wabro 255
3" exhaust
water methanol injection
ramhorn manifold
large turbo, more than likely a hx40

Is 500whp possible? The only reason I'm considering this, is because I was told by a local tuner I could only hit 450whp with this same setup but with a gsr head and itr cams.. I'm not sure if this is entirely true, maybe too conservative? I want to get as much power as possible, obviously as safely as I can. I'm hoping my water meth kit will do the trick here.

TravisBiggie

only if you had the 60whp.. damn!!

wantboost

iTrader: (2)

I'm assuming forged internals? what compression ratio?

also what fuel? you'll never make 500whp with a straight ls on 93 no matter how much methanol you throw at it

TravisBiggie

92 octane

je pistons flat top, eagle rods, benson sleeved

If 500whp on a ls isnt feasible I may go along with the vtec head.. I can hit 500whp on 92 octane with water meth can't I.... with itr cams?

I'm looking at the borg warner s366 and s360. Both of these turbos are the same price ($600 brand new) s366 pushes around 80lbs/min and the s360 is 65lb/min. I know the s360 would be a better choice for my horsepower goal (~500whp, shooting for the most horsepower I can get out of 92 octane and water methanol injection) but if I go with the s366, I can room to up the boost down the road, but unlikely. Ive seen a turbo gsr with a s366 on 21psi hit 600whp, so I'm guessing 15-17psi I will be around 500whp. your thoughts?

Thanks for the feedback, its greatly appreciated.

wantboost

iTrader: (2)

You'll break into the 400s but not by much, maybe 425 at most on an ls head.

you still won't make 500 on a vtec head. mid 400s is all 93 octane can do. you might get 475 if you run a 70/30 methanol mix at a minimum of 2-3gpm

TravisBiggie

Damn, I kind of disappointed myself. For all this time I thought pump gas could bring me into the 500s, sigh. I have seen other though break 500s with 91 octane and water meth.

TravisBiggie

http://hondamarketplace.com/showthread.php?t=2610740

this setup is over 500whp without water methanol. Also, the shop who tuned this car (speedfactory) were the ones who told me 450 is a logical goal for pump gas.


https://honda-tech.com/forums/forced-induction-16/turbo-gsr-526hp-pump-gas-2876216/

526hp on pump gas. how is this possible? both of these guys are running 6262s (75lb/min) Do the large turbos on some what low boost (less than 20 psi) have anything to do with denotation?

wantboost

iTrader: (2)

Those numbers are impossible on 93. Unless they are running e85 which is technically pump gas.

I could see making 500 on 93 and meth if you had a super efficient setup but its hard.

you also don't know what correction factor was used on the dyno, ambient temp and humidity, and if the dyno is showing crank or wheel hp

TravisBiggie

definitely, there are many many factors to those numbers.. well damn I am sure bummed.. I wish e85 was easily available in my area but the closest station is over 60 miles away =/

thanks for your help buddy.

TravisBiggie

Since I'm sticking with pump gas, should I go for flat top pistons or low compression? Remember I'm trying to get the most hp I can out of 92 octane with water meth.

wantboost

iTrader: (2)

You can run up to 11:1 on 93 and still make good power. with methanol injection you could probably go as high as 12:1 but in order to make decent power you'd have to running methanol injection all the time. you'd have to significantly lower boost pressure to run 12:1 on 93 without methanol.

I'm in the same boat, closest e85 station to me is 60 miles away in a direction I never go... after that the closest station is about 150 miles away round trip. I'm in that direction a lot but only on weekends. the only way I could run e85 would be to take a few 55 gallon drums to the closest station and then keep about 15 gallons in the car in cans or 5 gallon pails.

at that point it would make more sense for me to run q16 lol. I get a fairly steep discount on drums from vp, Sunoco, and Torco... although I do plan on ordering a drum of q16 for track days. since I'm blending my own methanol in a 70/30 ratio I will be getting a drum. my cost on 55 gallons of methanol from vp is like 110 picked up. can't beat that at all.