Chasing for another 40 Ponies

[thilaksharma]

This is my current setup

Stock 6 Bolt block
Stock 6 bolt head
BC Valve Springs
FP2 Cams
Mitsu 1.2mm Metal head gaskets
2.5" Intercooler Pipings
600X300X76 Intercooler
Synapse BOV
38mm Tial Wastegate
850cc FIC's + walbro's
TD06H Turbo + 50trim compressor wheel similar to FP Green
Evo III Exhaust manifold
Stock 1G Intake manifold
Megasquirt II EMS


I finally made 363whp on a Dyno Dynamic Machine , with around 30psi of
boost on Ron97 Pump Gas

I would like some help from you guys on how I can push this motor for more power
I will post the dynosheets later tomorrow , the peak power dies off at 7300rpm.
Any inputs and ideas would be apreciated.

Thank you

 

[banshee04]

A SMIM would help alot.

 

[loba]

adjustable fuel pressure regulator? Maybe time for a new intake manifold. Or tubular headers.

Oooh or new pistons to up the compression

 

[JEFFREYCASTGSX]

Hows your tune, by the size of your turbo i would expect a little bit more power.

 

[alansupra94]

A SMIM would help alot.

What is a SMIM?

What are the specs of that turbo? I would have expected more out of a 50trim.

 

[talonDSMerr]

Sheet metal intake manifold. I agree, I think your tune could be better. For a turbo that size, should be able to push more than what you're showing.

 

[JEFFREYCASTGSX]

smim=sheet metal intake manifold

 

[toofast82]

How much timing and whats your a/f ratio? Do you have a log from when you were on the dyno? I would have expected more power at 30psi from 50trim compressor with cams.

 

[BoredDSM]

I would definitely go with a sheet metal intake manifold for sure and throw in a good meth injection kit to make sure you make it over.

 

[xxShaneOmac]

How about you learn to tune?

30 PSI on a 50 trim spitting out 360.....

Im not being harsh... but real, something is wrong there.

 

[BoostFrenzy]

Calm down people. I would expect from some of you that you would know by now that different dynos put out different WHP numbers.

So first, what kind of dyno was used to measure that run?
How does your tune look? Peak timing? A/F ratio? Knock count?
From there, I would port the cylinder head. You are running such a high boost level that you will see some pretty good gains from just letting your engine breath better.
And If you don't want to swap out any major other parts to try and gain your 40hp, might as well port your exhaust manifold and possibly get a larger throttle body.

If you still are not there, you could swap to a sheet metal intake manifold and you will see gains form there as well. But it depends on your driving liking. To me, sheet metal intake manifolds make a car feel too "peaky".

 

[thilaksharma]

adjustable fuel pressure regulator? Maybe time for a new intake manifold. Or tubular headers.

Oooh or new pistons to up the compression

im already running a Sard Fuel Regulator

 

[dsm-onster]

T3 tubular exhaust manifold and 8cm^2 turbine housing. Should deliver similar results as a SMIM upgrade. But more power through out the power band, not just more peak. Cost should be about the same.

 

[thilaksharma]

ok guys, here is the spec of my turbo
its a 50trim compressor wheel that i got from FP
i fitted a td06h turbine wheel on a 7cm turbine housing and thats it , its the same as wht FP has done

as for the tune
it was A/F was 11.5 and my ignition timing was at 14 , my tuner did not dare to push it further higher

my block is a stock 7.8:1 compression VR4 block

The car did its dyno tune and runs on a dyno dynamic machine
I asume it should shoot atleast 20 more ponnies on a Dynojet machine

thank you

 

[thilaksharma]

T3 tubular exhaust manifold and 8cm^2 turbine housing. Should deliver similar results as a SMIM upgrade. But more power through out the power band, not just more peak. Cost should be about the same.

I will look into it , its sad that Bullseye discontinued the turbine housings for td05/06 chra
maybe the easiest to get would be a 8cm or 10cm housing, 10cm is too large ?

I might be getting a JMF race manifold, bt lets see wht the hotside + manifold will achieve

 

[thilaksharma]

How about you learn to tune?

30 PSI on a 50 trim spitting out 360.....

Im not being harsh... but real, something is wrong there.

i have gone thru DSMtuners members dyno sheets
i see 50trims aka AGP49 , aka FP Green , aka garrett t04e etc
only one guy managed to achieve 490whp on dynodynamics, and tht is with a 0.82 T3 turbine housing which is rather huge compared to a 7cm MHI housing, and lastly , he runs race gas

the rest of the guys had an average of 400whp , bt thts on dynojet , isnt it a norm for dynojet to shoot much higher hp numbers

 

[spydermanX98X]

with no modifications other than injectors and tuning (maybe fuel pump depending on your exact walbro setup), you could bump up to run e85 to run more agressive timing and perhaps even boost although thirty seems fine for .50 trim type turo

 

[thilaksharma]

with no modifications other than injectors and tuning (maybe fuel pump depending on your exact walbro setup), you could bump up to run e85 to run more agressive timing and perhaps even boost although thirty seems fine for .50 trim type turo

sadly , i live in the asia region, we do not have e85 , bt our pump gas has octane rating of 97
i do have meth injection which i havent got time to install

 

[BoostFrenzy]

sadly , i live in the asia region, we do not have e85 , bt our pump gas has octane rating of 97
i do have meth injection which i havent got time to install

There's your answer. Boost you should be fine at, you could probably add a few pounds, but up your timing and you will have more horsepower. What size nozzle are you going to be running?

 

[thilaksharma]

There's your answer. Boost you should be fine at, you could probably add a few pounds, but up your timing and you will have more horsepower. What size nozzle are you going to be running?

I bought an AEM water injection, most probably i got to test it out to see which nozzle would suite it best , any suggestions ? bt of cos 50/50 water/meth

 

[BoostFrenzy]

I bought an AEM water injection, most probably i got to test it out to see which nozzle would suite it best , any suggestions ? bt of cos 50/50 water/meth

For maximum power, you want 100% meth. But, I know methanol is expensive, and it is also very abrasive to the pump. So I don't know how the AEM pump reacts to straight meth. Start with a 50/50 mix and if you can get to where you want it to be, keep upping the Meth amounts. Just make sure it is properly done. Trying to run 30+PSI and 20+ degrees of timing isn't going to mix well once the meth fails on you for some reason. So be warned.

 

[dsm-onster]

No meth 100% meth won't give you the best power unless you run enough meth for it to become a fuel suppliment. Meth has a very high octane but you need LOTS of it injectrd at one time for it to actually raise toe octane of the fuel mix. If you're at 80% IDC with 750s, you're fuel flow per injector is 600cc. You'll need a nozzle flow of 600cc to raise 93 octane fuel to 97 octane . Meth cools VERY well and you will still see the ability to raise your boost, but when you begin to run that much methenol you also change your stoichiometric number significantly (stoich for meth = 6:1 a/f ratio). You will have to run richer to keep lambda at a safe level so as not to detonate. This defeats the purpose of using methanol injection. So if you're going to inject pure meth, truely go big or go home. You need to inject 60%-70% of your fuel flow (or have the room for that) to get the proper results out of pure meth injection. That's a lot of meth in an area where it may be hard to come by.

If you run a water meth mix, then you can use a 25-30% nozzle, and get the aircharge cooling benefits of meth. And the effective octane increase from the water in the combustion chamber. A 16% nozzle of pure water effectively raises octane to 110 or so.

As well, I think your 97octane gas is rated on a different scale than western stations. I think it still is about like 93.

 

[thilaksharma]

No meth 100% meth won't give you the best power unless you run enough meth for it to become a fuel suppliment. Meth has a very high octane but you need LOTS of it injectrd at one time for it to actually raise toe octane of the fuel mix. If you're at 80% IDC with 750s, you're fuel flow per injector is 600cc. You'll need a nozzle flow of 600cc to raise 93 octane fuel to 97 octane . Meth cools VERY well and you will still see the ability to raise your boost, but when you begin to run that much methenol you also change your stoichiometric number significantly (stoich for meth = 6:1 a/f ratio). You will have to run richer to keep lambda at a safe level so as not to detonate. This defeats the purpose of using methanol injection. So if you're going to inject pure meth, truely go big or go home. You need to inject 60%-70% of your fuel flow (or have the room for that) to get the proper results out of pure meth injection. That's a lot of meth in an area where it may be hard to come by.

If you run a water meth mix, then you can use a 25-30% nozzle, and get the aircharge cooling benefits of meth. And the effective octane increase from the water in the combustion chamber. A 16% nozzle of pure water effectively raises octane to 110 or so.

As well, I think your 97octane gas is rated on a different scale than western stations. I think it still is about like 93.

i will definately go with half water , half methanol , will install it soon n let you know how it comes

 

[thilaksharma]

For maximum power, you want 100% meth. But, I know methanol is expensive, and it is also very abrasive to the pump. So I don't know how the AEM pump reacts to straight meth. Start with a 50/50 mix and if you can get to where you want it to be, keep upping the Meth amounts. Just make sure it is properly done. Trying to run 30+PSI and 20+ degrees of timing isn't going to mix well once the meth fails on you for some reason. So be warned.

im nt sure hws the price like in the US
over here its about , $0.50 per litre

 

[daniel dee]

Our local tuner got 470 AWHP (Mustang Dyno)
with an bolt on 50 trim,, stock intake, 272 cams ,pump gas with meth..
There is some power to gain with a cheap tubular manifold over the EVO3 stuff.