200hp+ ALH????

[vwmikel]

Cylinder pressure is the enemy of longevity. I think raising the compression would have much worse effects than just increasing boost pressure as the compression is constant, boost isn't. Also, I don't know if you guys realize it but raising compression would also make the engine much louder. An ALH is what, 19:!? A 1.6 diesel is 22.5:1 and is considerably louder.

 

[storx]

I have always wandered if something like this would work on our engines.. i know it would make some placement issues.. but i wander if it would work.....
Basicly what it consist of is a smaller turbo example (vnt15)and a larger turbo as in a (vnt25-30)...
The larger turbo is bolted directly to the engine via manifold.. and the smaller turbo is bolted to the larger turbo... so the exhuast gases flow thru the bigger turbo and then thru the smaller turbo before flowing out the exhuast...
so the smaller turbo has its quick spool up rate as normal and gives you that great off the line punch.. then as the rpms climb and the exhuast gases make the larger turbo build boost the spring loaded butterfly valve is opened and the flow of boost from the larger turbo overcomes the flow of the smaller turbo taking the load off the smaller turbo...
then it goes thru the intercooler and is controlled via a manual boost controller to prevent to much high end boost.....

so basicly the whole rpms.. is covered with boost and good flow...

VNT15 takes care of 1500-3000rpms boost and then the larger VNT takes the 3000+rpms range...

 

[storx]

I have always wandered if something like this would work on our engines.. i know it would make some placement issues.. but i wander if it would work.....
Basicly what it consist of is a smaller turbo example (vnt15)and a larger turbo as in a (vnt25-30)...
The larger turbo is bolted directly to the engine via manifold.. and the smaller turbo is bolted to the larger turbo... so the exhuast gases flow thru the bigger turbo and then thru the smaller turbo before flowing out the exhuast...
so the smaller turbo has its quick spool up rate as normal and gives you that great off the line punch.. then as the rpms climb and the exhuast gases make the larger turbo build boost the spring loaded butterfly valve is opened and the flow of boost from the larger turbo overcomes the flow of the smaller turbo taking the load off the smaller turbo...
then it goes thru the intercooler and is controlled via a manual boost controller to prevent to much high end boost.....

so basicly the whole rpms.. is covered with boost and good flow...

VNT15 takes care of 1500-3000rpms boost and then the larger VNT takes the 3000+rpms range...

just thought about it.. probably be better if the turbos were better matched exhuast wise..
Like a hybrid...
smaller turbo be a hybrid vnt15/vnt30 and then run a vnt25/vnt30 hybrid as the bigger turbo so there is no bottleneck on the exhuast side..

 

[mrchill]

High compression diesel with high boost does make serious power, at a price. The number of headbolts we have is a bit of a limitation on power over time. As long as you are willing to break stuff, you can do anything. But if you want a modicum of reliability, you must draw the line. Rpm is the answer to HP. PD's make such high pressure, that the injection events can be made much smaller with the same mass of fuel. As a result, HP can be had through RPM. VE can do it, but it is more of a challenge. Big pump heads turn slower, hurting chances of higher RPM, however, they deliver way more fuel mass.

If one could increase the pressure of the fuel on say a 10mm pump, one could be well set up for tuning which would extend the reve range nicely. As far as modified pumps, thats what the tractor pull guys do. BIg dolar injection pumps and well built engines with sequential turbos. It can be done, not cheaply as yet, but it can be done.

 

[GTDi-95]

GTDi

Hi ALL

An ALH engine is the one with 90bhp? What can be done to modify it!!

Thanks!

 

[johnnloki]

Hi ALL

An ALH engine is the one with 90bhp? What can be done to modify it!!

Thanks!

Boy are you in the wrong thread... Chip + injectors often = slipping clutch from the new found power.... Just start there, read and learn more, and come back to this sort of stuff later on.

Not trying to discourage you, hell, I'm still very new to this stuff... but you've got people speaking about experimental dual turbo setups--- "How do I make my car faster" ain't the best question at this point.

 

[storx]

I have always wandered if something like this would work on our engines.. i know it would make some placement issues.. but i wander if it would work.....
Basicly what it consist of is a smaller turbo example (vnt15)and a larger turbo as in a (vnt25-30)...
The larger turbo is bolted directly to the engine via manifold.. and the smaller turbo is bolted to the larger turbo... so the exhuast gases flow thru the bigger turbo and then thru the smaller turbo before flowing out the exhuast...
so the smaller turbo has its quick spool up rate as normal and gives you that great off the line punch.. then as the rpms climb and the exhuast gases make the larger turbo build boost the spring loaded butterfly valve is opened and the flow of boost from the larger turbo overcomes the flow of the smaller turbo taking the load off the smaller turbo...
then it goes thru the intercooler and is controlled via a manual boost controller to prevent to much high end boost.....

so basicly the whole rpms.. is covered with boost and good flow...

VNT15 takes care of 1500-3000rpms boost and then the larger VNT takes the 3000+rpms range...

how about this... since wastegates are used mainly to prevent the surge on the turbo when throttle is let off... could be use an big enough wastegate/dump valve to release the excess EMP between the two turbos??? so this wouldnt cause as much of an restriction of the exhuast side of the bigger turbo feeding into the smaller turbo.....

So we could match a pair of turbos were the vnt15 lights up everything down stairs and when the vnt15 is near the end of its effective range the bigger turbo is ready to rock and over comes the boost preassure carrying boost all the way to redline......just to make sure we dont over boost the setup we run an safety boost controller before entering the intake manifold keeping boost within safe limits....so instead of it being an bi-lateral turbo setup.. it be a true twin turbo setup on an small displacement engine...

 

[storx]

basilcy what we could use is an 76mm+ waste gate (watts preassure relief valve) directing excess preassure to the exhuast downpipe

 

[Rub87]

It's not impossible but it'l involve alot of research and even more finetuning of all the wastegates..

 

[im570rm]

why not use instead the turbos from 535/335d ?The exactly configuration with the manifold and stuff.

 

[nicklockard]

I have always wandered if something like this would work on our engines.. i know it would make some placement issues.. but i wander if it would work.....
Basicly what it consist of is a smaller turbo example (vnt15)and a larger turbo as in a (vnt25-30)...
The larger turbo is bolted directly to the engine via manifold.. and the smaller turbo is bolted to the larger turbo... so the exhuast gases flow thru the bigger turbo and then thru the smaller turbo before flowing out the exhuast...
so the smaller turbo has its quick spool up rate as normal and gives you that great off the line punch.. then as the rpms climb and the exhuast gases make the larger turbo build boost the spring loaded butterfly valve is opened and the flow of boost from the larger turbo overcomes the flow of the smaller turbo taking the load off the smaller turbo...
then it goes thru the intercooler and is controlled via a manual boost controller to prevent to much high end boost.....

so basicly the whole rpms.. is covered with boost and good flow...

VNT15 takes care of 1500-3000rpms boost and then the larger VNT takes the 3000+rpms range...

Des Does compound turbos.
\
Compounded Twin Turbos

 

[storx]

It's not impossible but it'l involve alot of research and even more finetuning of all the wastegates..

use of EMP gauge could make a good device for tuning it...i would have it insanely loose and then adjust it tell we reach the boost levels at the smaller turbo that we would want....

 

[hatemi]

I think someone shoud try the twins withoug going overboard like I will be doing Using turbos that are cosely sized might produce even better results. My LP turbo will be one that is happy with 3+bar from just it so it might be a bit on the extreme side for TDI. Using two compressors both making 1bar of boost eficently you would have 3bar with very high efficiency and you dont actually need that large turbos to get that. And that would be enough for most of us

 

[storx]

Des Does compound turbos.
\
Compounded Twin Turbos

its not componded turbos...
Its Serial Turbo's.... hehe

 

[tdi_volks]

when I compounded my turbos they looked really flat and all smashed, anyway I wanted to try and twin turbo my ALH tdi golf and then a stupid gas engine person told me I couldn't do that and I believed him. BMW has a twin turbo diesel car thats really responsive, one smaller turbo catches first then passes off to the larger turbo. I was originally thinking two smaller turbos but still bigger than stock tdi turbos.....

about the whole PD pump duse engine vs. ALH engine.....
I could be wrong cause I guess pump duse tdis have all that more fuel pressure, but I'm pretty sure that since you can change the nozzles in the ALH motor it makes up for the difference. with the PD motor you can chip it and it is like equal to an ALH with chip and nozzles. but Im pretty sure the ALH is going to always be more affordable cause its so much older. Im real happy with my alh tdi golf with just chip and nozzles, however I already bought a bigger turbo and intercooler for it which is going on there soon. It should be 250 -260 hp. thats what people are getting with a good set up on the alh engine

 

[oldpoopie]

250 to 260hp??? show me those people, please.... no really.

 

[clove911]

250 to 260hp??? show me those people, please.... no really.

yeah i think thats the funniest thing posted in this thread yet. Forget all the ideas to make 250hp, this guys already got parts on order!

 

[GTDi-95]

Dear JOHNLOKI or whatever is your name..... If you look at the starting of this post you can see that the question was....200bhp + on an ALH.....how can an ALH engine be tunned to 200bhp or more.....that is what I want to know....with all the respect its still TDI Power Enhancement allthough I am a newbie doesnt mean my engine is a newbie too...Thanks for understanding...

 

[Crazy Memphis]

It should be 250 -260 hp. thats what people are getting with a good set up on the alh engine

my 2000 jetta tdi have 400hp and 800tq, but unfortunatly i don't have the dyno to prove it !!!! lol

if they could dyno this diesel monster, i will find a dyno the prove that my car have 400hp ok !!!

until then, the reality say that alh non-pd is near it max around 200-210hp
and i 've hear of a golf tdi pd that had 230hp in mexico ??? but never saw it.

 

[hatemi]

AGR. The same engine as ALH but originally with WG turbo.

All VE engines are capable of 200-230hp with stock head and cam. Slap 12mm pumphead and R520 in there and feed the engine air delivered by a BIG ENOGH turbo and youre there. Dont waste your time or destroy your engine with anything smaler than VNT 20. Even that in its stock form is too smal for much more than 200.

 

[Rub87]

Another proof.. stock engine (it's even an older type AFN block), 12mm, R520's.. pushing the limits of the vnt20..

don't see why you couldn't get 220bhp out of an ALH.. you need: fuel (R520 lift pump and 11-12mm head) air (decent turbo like vnt20-22).. offcourse you'll need a clutch that hold this torque, and offcourse you'll need a FMIC if you want the IAT's to stay in a safe range..

 

[LNXGUY]

Rub, what are you using for tuning?

 

[Rub87]

Ehm, the software is custom remapped by VVT, he did and awful job, I don't need a boostvalve to prevent spiking such as many of the folks here on this forum use.. turbo spools nice, and the spoolup is limited by compressor surge..

 

[mrchill]

He did an awful job? Perhaps you meant excellent?

 

[Rub87]

Yes perhaps I meant that.. it was still early in hte morning here in Belgium :-D

 

[freewind]

There's cool ALH project link on mk4 Golf:
http://www.racingtdi.com/engine.htm

Hey, Strorx, how's you TT TDI project living?

Regards!

 

[Zwei Bora Tdi]

Hey, Let's get back to the idea of the AWD setup. I was just looking at one the other night at VW Vortex. Guy took an Audi and mated it up t a Golf pretty easily. '01 Audi TT to a '01 Golf GTI. Taking into account the extra 300 lbs, the dude was still ripping pretty decent times at the strip. I think the extra Haldex equipment weighs in at around 300 Lbs or so. So, the engine seems to be an ALH with a few more goodies than I have. I haven't dynoed mine yet, but I think I could be well over 200 with Kerma and an 11mm mod. So I say get busy and start to get the running gear sorted. The guy at Vortex said he got his TT for 4k. Not bad. Spend another 1k or so on this and that. Dude, you have to do this! I am gonna look for an AWD in Germany very soon. Anybody remember that bloke from MD? SVTWEB? They slagged him down everyday. Back to power mods: Thought about a supercharger and a turbo? The Army has a HEMMTT or PLS vehicle made by Cummins that has a 906 cu in Twin Turbo and supercharger set up. Or you could stay conservative and just go ALH or BWZ and stick to the basics. Either way a Tdi will be more "fun" in my opinion and deliver consistent mileage and longevity. As far as a 1.8t or other gas engine, the 2.0t is a better engine than that one. Heads and tails better mileage. May the force be with you!! I would like to support you anyway I can. The benefits of AWD and Torque can't be underestimated.

 

[Whitbread]

I'm with you Zwei Bora Tdi, an awd tdi would freakin sweet. The videos of stingray rt's lupo on youtube are proof enough. When my money tree finally starts growing that will be one of the first things I intend on doing.

In 2 months or so I'm going to take a crack at 200+ whp and 350+ ft-lbs. I'm getting my car dyno'ed in a couple weeks for a "baseline" of sorts before the fun parts. I don't want to spoil any secrets so i'm just going to say its going to be a combination of select european goodies, lots of custom parts, and will be rather unique. I will give 2 hints though; I'm a tig welder/fabricator/machinist/auto-diesel technician by trade, and

 

[DbLog]

Whitbread, can't wait for you to get the project together. Looking forward to hearing some more progress.

 

[pearse]

What kind of turbo will you be using to get to your goal?

In 2 months or so I'm going to take a crack at 200+ whp and 350+ ft-lbs. I'm getting my car dyno'ed in a couple weeks for a "baseline" of sorts before the fun parts. I don't want to spoil any secrets so i'm just going to say its going to be a combination of select european goodies, lots of custom parts, and will be rather unique. I will give 2 hints though; I'm a tig welder/fabricator/machinist/auto-diesel technician by trade, and