Turbo JDM D15b VTEC how much whp?

[hondafreakef915]

Hi Im a new member and i have a 89 hatch that I'm boostin soon! But I would want to know how much power would it make?! Ok this is what I'm running

D15B VTEC
YCP vitara pistons 75.5mm with Hasting rings
FJ R-SPEC custom length rods with ARP bolts
ACL RACE rod and main bearings
Honda oil pump
Comedic head gasket
ARP head studs
Rebuild head
Bisimoto cam gear (the best in the market!)
Ported and polish head! It looks like it will flow very nice
750cc RC injectors
Walbro 255
Y8 intake manifold wit d15b fuel rail looks nice!

Turbo setup
Precision 5857 billet wheel
Precision wastegate 46mm
Top mount manifold
20x9x2.75 intercooler core
2.5 intercooler piping
Tial BOV
Golden eagle sandwich plate

Electronics
HONDATA S300
Hondata map sensor
Autometer gauges

Drivetain
CRX Si tranny
Competition clutch 6 puck
Autozone lifetime axles

Tires
24.5 Mickey Thomson slicks

 

[TerriYockee_Boi]

it all depends on the tune. you could get a conservative tune (around 200 whp) which would save you mpg. or you could get an agressive tune. with your setup you could eaily get 300 whp. it all depends on the tuner than works on your car.

 

[hondafreakef915]

Yea that's wat a lot of people tell me that it depends on the tuner! I have a friend he tunes car on a daily base. He made a d16y7 get 220whp on a eBay turbo setup with 7psi. Stock internals just head studs n comedic head gasket. So will see how the billet wheel will work with pump gas and race gas. I'm shooting for 350whp wit race gas. But bisimoto may fly down here to tune some cars so maybe he can get more out of it since he tunes diff. From some tuners. But anyways it's just my daily driver not a race car

 

[got traction]

go see tony @ T1 race development. Your set up should be able to make 300ish on a stock head

 

[31dev31]

What they said. I guess around 280 whp.

 

[hondafreakef915]

Will see how much power it can make I'm hoping the turbo will make good power wit the stock cam. But if I'm not happy with the results I'll buy a turbo cam right after I have some fun wit some mustangs.

 

[eg6white305]

It depends on how much boost you run but 300whp should be no problem. If you get a cam the bisi2.4 cam is the best. And if Bisi would tune your car that would be sick!

 

[hondafreakef915]

Well I'm planning to run 7-10psi on pump gas but on race gas I want to run 17-20psi the 5857 turbo is a good turbo and im hoping the billet wheel will help with spool time. Can somebody tell me at wat rpm would it be at full boost? I think 20psi on this turbo would be like 25+ on a 30r. I'm not sure if that's right. And my friend told me that he may have bisi come till like next yr so there goes that chance wit bisi to tune my car. And idk wat clutch to use any ideas?!

 

[EASTurboEG6]

invest into a better engine man

 

[got traction]

invest into a better engine man

why?


and OP- that turbo on 20ish psi should be fine on pump gas.

 

[ej_swag]

invest into a better engine man

Well...the jdm d15 is f**king sick with turbo. Yeah with the amount of money you spend you might be able to get more hp with a bigger motor but... sohc's are dope.

 

[ej_swag]

why?


and OP- that turbo on 20ish psi should be fine on pump gas.

Yeah with this kind of build it should hold up just fine.

 

[hondafreakef915]

Well I was gonna swap the dual point for a GSR but then my friend said u should build a single cam n boosted. And since he has been working with hondas for awhile I was like screw let's do and see how it performs. I don't want to push 20psi on pump gas idk I just think It may blow to fast and race gas would do better n safer I don't mind buying race gas. U think 30psi on this turbo would blow the d15? Well if it blows I have a USDM D15B non Vtec that in gonna build the bottom end just in case I blow the other one. Oh one more question how much should I TQ the head studs?! 65-75?

 

[got traction]

we've made great power on vitara single cams. and for the ARP head studs you should torque them to 75ft lbs. 25,50,75 is the sequence

 

[honda_doll]

invest into a better engine man

I've seen ppl invest the same amount of cash into a "better engine" n when it comes dwn to it the SOHC is reppin' better numbers. It all depends on wut u do or how but I've seen some quick Singles takin out them "better engines"

Either way we all have our favorites...