Can't say I really agree with this. All your doing with the pump is correcting fuel to your turbo's needs (which a stock pump does easily). Its your turbo that dictates when boost kicks in and holds that boost too (keeping it inside its efficiency range). Most companies/people tune them for correct afr's under load. It's still an art to tune them preboost/on boost. And that's what gives you great drivability. This is why Graeme's turbo's are so great. They are matched to that engine. The intake manifold mod is dependant on boost level, VE/cfm etc. I would still do it to a stock engine. But the size would change.
1HD-T Intake Manifold Modifications
- Thread starter ForealBoreal
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Can't say I really agree with this. All your doing with the pump is correcting fuel to your turbo's needs (which a stock pump does easily). Its your turbo that dictates when boost kicks in and holds that boost too (keeping it inside its efficiency range). Most companies/people tune them for correct afr's under load. It's still an art to tune them preboost/on boost. And that's what gives you great drivability. This is why Graeme's turbo's are so great. They are matched to that engine. The intake manifold mod is dependant on boost level, VE/cfm etc. I would still do it to a stock engine. But the size would change.
im suprised other parts of the world are not trying to import atebs fuel mods, like were trying to get what we do not have here ,but to date the extreme v/b is still the over seas slow boat. for now. curious about the ve ,cfm numbers ? still stock ? you say you hate the front entry style intake . i thought it was best with the front mount cooler design (old supra junkyard find )being a shorter run and one less 90 *.you guys over there have a surplus of manifold designs to use at your disposal ? contacts please ,im sure they could sell a bunch ,i would have bought one intead of designing one, (oxygen tank ,from the srap yard) and yes i know its a gamble with the under 300 dollar turbo but if the numbers work the numbers work.
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I agree with that too. I would far rather have a better turbo and a stock fuel pump, than a stock turbo and a tweaked fuel pump.
Without the extra boost, it's just higher EGT and more smoke. The only way to make a significant gain on a diesel, is more and better boost.
Why are you pulling out your custom turbo and installing a cheap chinese one? Is it failing or does it surge in the low rpm or when you wind out the fuel to save your transmission does it not have the low rpm boost response you require? Im playing around with my Bad By stage 2 spec at the moment - 20psi at 1600 no problem without having to dump smokey amounts of fuel in.
I dont have an issue with surge with my turbos. That is one of the key things - they flow high up top, they dont surge down low but develop high boost. I am building surge ported covers just to be sure - have supplied a couple already.
I also offer 5 comp wheels and 4 turbines to allow the optimum result depending on your goals and modifications. If you want to operate ~ 16psi and hold it flat from 1600rpm to the fuel cut and not have to wind fuel in too much dont in the low revs to make it boost, I have it - you want 20psi later on with more mods then no problem, it can do that. You want 30psi, you can have that too with different spec.
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It just personal preference why I dislike the front entry design. You can seriously just do all mods to the pump yourself. There is absolutely no need to import these things.
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.pulling the turbo just to see if i can isolate were the power is actually coming from, plus the chinese turbo has a larger exhaust. surge issues were contolled by a blowoff valve controlled by a throtle body for vacume. the pump is set to supply fuel for 6000 rpm (if needed ). this is my daily driver (sea level -2000+ feet daily). i would love to see the badboy 2 ,anyone in the vancouver area have one,what turbo is adam running . to bad i could not get a demo turbo off of you to compliment atebs tuning, now that would be the ticket i bet.
- Thread starter
- #32
Adam is running an older grunter model gturbo
G's new turbos apparently are more responsive.
G's new turbos apparently are more responsive.
Tapage
Club 4X4 Panamá
so you adapt some butterfly in your intake / throttle body .?
Any one got a link to the "1HD-T Intake Manifold Modifications"
or is this thread going to be hijacked (agian) to a gturbo thread.
As if there isnt enough of them already (gturbo threads)
Hamo
or is this thread going to be hijacked (agian) to a gturbo thread.
As if there isnt enough of them already (gturbo threads)
Hamo
Any one got a link to the "1HD-T Intake Manifold Modifications"
or is this thread going to be hijacked (agian) to a gturbo thread.
As if there isnt enough of them already (gturbo threads)
Hamo
Never enough
. You can't do the intake mods to the ft anyway.yes basically a butterfly just before the intake in line with the throttle cable (jack sprocket therory) . and ya i hear you hammo,to blind funny .i was told when building my manifold to be carefull on the tapperred plenium intakes ( at least on the entrance anyways if your running big boost) . and the local turbo guy i have been useing seems to know his stuff (more than 1 bonniville record).
Do you have any specs on your intake as far as diameter length and stuff? did you do a bell mouth and how far off the floor did you space it? I am thinking of doing a plenum for my 3B as the stock one has nothing and is really just 4 runners. Pics would be awesome. This is one of the few threads in the last while thats got some good potential.
- Thread starter
- #38
Post a shot of this prado intake up and your 81s intake.
This thread is useless without pictures!
hi guys i am not trying to pissed any one, nor i am trying to proved that i am not alone in this world, know how to tune any diesel engine. just to let you know beside, greame -there is lot of other people out there have very good knowledge but just keep quiet about it.i apology if i ever step on any one toes. but every one has it own tuning & desire for power where comparison is of no points.if greame think of him self as top of the world tunner & no one come close, then let it be.i have been doing turbocharging in the 80`s before i came to canada so i believe i have done enough till today & not new on these subject.
Where? Look at all the garrett range, all previous high flowed ct26's etc. NONE of them can match these turbo's. for 1 simple reason. They are designed and built for this engine. It's always been give and take for low down and high end boost. There is no compromise. New extended tip fin design impellers. All you guys are doing, is using the pump as a band aid. Using high end boost turbo's and dumping crap loads of fuel down low to over come the lack of response/spool. You can do that if you like, there's no rules. But to date, no other turbo I have seen matches it. Boost is boost! 25psi vs 25psi is going to be the same hp (apart from other factors). Noone is saying you can't beat the top end numbers. But everyone is saying the low end response is fantastic, while still maintaining high boost levels.
I want to know exactly what they do to these pumps? And dyno figures/afr's/egt's. 0-60mph times.
