I was just wanting to know what kind of boost can a stock bottom end of a d16y8 take. I have been think turbo for a while but if i could get about 10 psi without hurting the bottom end i would do it. otherwise ill just stick to building my z28.

 

the d series rod are rated to 200hp or 220hp depending on who you ask. be safe and dont go over ten psi or 200 hp. or just get some eagle rods or whoever find

 

Made that for over a year with no problems. Swapped the engine for a built Z6.

 

yeah i have heard that 200-220 is safe on stock d series internals....

 

Nice numbers, mine look about the same ~ 220whp . 10psi on t3/t4 turbo, .57 trim .63 AR

Stock motor 'cept for ARP headstuds + new OEM headgasket if that counts lol.. TO counter the headlift I had without them.

What's your setup on your new motor?




Modified by ke98248 at 10:05 PM 10/19/2008

 

Let's get back to topic. The bottom end should hold about 240-260HP MAX.. Safely, about 200WHP

 

Just make sure that you don't boost it too much, I know a guy here boosted a stock 1.5 on 8 psi and did ok but he went to 12 and slung a rod through the back of the block... So 10 should be ok on a stock motor, just make sure you have it tuned.

 

im not a turbo guy but i would have to add that 10 psi totally depends on the size of a turbo ur using but judging by a stock internalled motor ide say its prob pretty small so 10 psi on a t3/t4 sounds good. just get a tune and u should be fine.




Modified by Schister66 at 6:28 AM 10/22/2008

 

I ran one bar of boost on my stock d16z6 (14.7 pounds) it was a real inefficient setup, meaning not alot of hp for lbs of boost. but I mad good power. 230-240 whp. I ran it like that for 7 months till I traded it for a dual cam, which is not turbo'd as well


ps. this is more of a question for the FI forum. and you will find everyone on the single cam turbo thread says stock rods are good for about 250, there was one guy who made 276 or something like that, but 250 is about the limit.

 

Boost pressure is irrelevant...

If you want it to be safe, stay in the 220-240whp range

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Schister66 &raquo;</TD></TR><TR><TD CLASS="quote">Boost pressure is irrelevant...

If you want it to be safe, stay in the 220-240whp range</TD></TR></TABLE>
X2
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 00b20vtecoupe &raquo;</TD></TR><TR><TD CLASS="quote">im not a turbo guy but i would have to add that 10 psi totally depends on the size of a turbo ur using.</TD></TR></TABLE>
X2

PSI doesn't matter it's all about your whp goal

 

I have been told that you go by tq 200tq is about the safe mark on a single cam.

My daily driver completly stock z6 with nice turbo kit made 260whp227tq@12psi

and on 15psi it made 305whp247wtq its holding together so far i run it on 12pounds daily and my girl drives it at the track. So far she has ran a 13.0@107 on some old 15in street tires. Im very happy with it very cheap but efficent. I bet this motor will hold for a long time. Its all about tunning as long as theres no detonation it should hold. Only time will tell..oh and my car gets beaten on daily no ***** foot here!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 23hatchturbo &raquo;</TD></TR><TR><TD CLASS="quote">I have been told that you go by tq 200tq is about the safe mark on a single cam.

My daily driver completly stock z6 with nice turbo kit made 260whp227tq@12psi

and on 15psi it made 305whp247wtq its holding together so far i run it on 12pounds daily and my girl drives it at the track. So far she has ran a 13.0@107 on some old 15in street tires. Im very happy with it very cheap but efficent. I bet this motor will hold for a long time. Its all about tunning as long as theres no detonation it should hold. Only time will tell..oh and my car gets beaten on daily no ***** foot here!! </TD></TR></TABLE>

Your engine will fight back for treating it like this. It may not go out soon, but that much power on all stock components it will eventually give in to the pressure.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by neoc03 &raquo;</TD></TR><TR><TD CLASS="quote">

Your engine will fight back for treating it like this. It may not go out soon, but that much power on all stock components it will eventually give in to the pressure.</TD></TR></TABLE>

I agree, but i made 315whp on a stock GSR and it lasted for 2 years before a small oil leak caused it to run a bit dry and spin a bearing (barely). Now its rebuilt and ready to rock.

If you maintain the engine, you should be able to make good power on it; however, D series engines have a bit of a fault in that the stock rods are the size of a toothpick

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by neoc03 &raquo;</TD></TR><TR><TD CLASS="quote"> Your engine will fight back for treating it like this. It may not go out soon, but that much power on all stock components it will eventually give in to the pressure.</TD></TR></TABLE>

I completely disagree. As Schister said, boost pressure is not what you need to focus on, horsepower is what will cause failure with stock components. Factor in a healthy bottom-end, and a quality tune, there's no reason you should have issues at a moderate horsepower.

FWIW, when my Integra was on a bone-stock motor, we were at ~450whp/325tq...tons of street mileage, 200+ passes at the track, and broke into the 10's...motor never flinched. When we pulled it out...compression was still ~200 across the board, and then threw it into Phil @ Evans-Tuning's hatch, and to my knowledge it's still running like a champ.

Just goes to show with a healthy motor, quality parts, dead-on tune, and proper maintenance, you can go a long way on the stock motor.


Modified by a1320addict at 2:24 PM 10/22/2008

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict &raquo;</TD></TR><TR><TD CLASS="quote">

I completely disagree. As Schister said, boost pressure is not what you need to focus on, horsepower is what will cause failure with stock components. Factor in a healthy bottom-end, and a quality tune, there's no reason you should have issues at a moderate horsepower.

FWIW, when my Integra was on a bone-stock motor, we were at ~450whp/325tq...tons of street mileage, 200+ passes at the track, and broke into the 10's...motor never flinched. When we pulled it out...compression was still ~200 across the board, and then threw it into Phil @ Evans-Tuning's hatch, and to my knowledge it's still running like a champ.

Just goes to show with a healthy motor, quality parts, and proper maintenance, you can go a long way on the stock motor.</TD></TR></TABLE>

Yeah, but he is talking about a D series with rods as thick as Nicole Ritchie's bones.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict &raquo;</TD></TR><TR><TD CLASS="quote">Just goes to show with a healthy motor, quality parts, and proper maintenance, you can go a long way on the stock motor.</TD></TR></TABLE>

...if only more people understood this

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by neoc03 &raquo;</TD></TR><TR><TD CLASS="quote"> Yeah, but he is talking about a D series with rods as thick as Nicole Ritchie's bones.</TD></TR></TABLE>

Great analogy...however I still don't agree with you. Yes B-Series are stouter, so what....horsepower limitation will be lower. In no way did I say yea go make 400+ on a stock D-Series, the purpose was to show the stock motor isn't as fragile as so many think.

Stock D-Series
http://forums.evans-tuning.com...=3959
http://forums.evans-tuning.com...=3788

 

There is a Phearable.net 500hp stock sleeved d-series floating around here some where.

Other than that everything important on this subject has already been said

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by a1320addict &raquo;</TD></TR><TR><TD CLASS="quote">

Great analogy...however I still don't agree with you. Yes B-Series are stouter, so what....horsepower limitation will be lower. In no way did I say yea go make 400+ on a stock D-Series, the purpose was to show the stock motor isn't as fragile as so many think.

</TD></TR></TABLE>

Wasn't trying to knock the D series but 305whp DD and beaten on is allot to ask of a D series. Just like 400+whp out of a stock B16 driven and beaten on daily is allot to ask of it. The OP sounded as if he would rather sacrifice some HP for reliability. People don't give the D series the credit it deserves sometimes. I'm guilty of that I've been spoiled from the get go. I came into Hondas on a B series and never owned a D series. However my boys D16Z6 CRX is a fun little car to drive.

 

why it took so long for someone to mention that PSI is Irrelevant, I dont know!

WHP kills motors, not PSI..
PSI is determined by the setup and the size turbo you run..

Like the others said

 

A few years ago I ran 14psi with a T3 super 60 on my 100,000 mile D15B7. It had a good tune making 227whp and lasted ~10,000 miles like this. Then it went off like a bomb on a highway run. So I'll say keep it under 10psi or 200whp.

 

this was made with a stock y8 and an ebay turbo kit on 14psi

 

im coming from the VW workd and what causes 1.8t's to break or throw rods is too much torque

many have thrown rods with gt28r and then there's some that run gt30 and gt35 on stock motor and are fine so far

also from what i've seen in my world gt turbos break rods more often than t3t4's i think its that on the gt's when they start to spool it spools very quickly and causing a tq spike and it doesn't always blow right then sometime it bends a rod and then its a ticking time BOMB

 

I have rocked almost every honda engine the d is a great engine with great street potetial. I know we are pushing the little single and the rods are super wimpy but it really dosent bother me **** i can pick up a complete swap for what $350 u cant even pick up a d tranny for that price and we all blow those up daily!! If it goes i will throw a vitara builtd together. Then 400whp daily beatean