gotta love that torque,, OH YEAH!!!

silly old saying,, "HP sells cars Torque wins races"

 

Verryyy true ronbros!

 

that's a big advantage of forced induction especially roots blowers, is the massive amounts of low end torque

 

cal its nice to see that you finally are becoming more aware of Forced induction!

my dad was no great car mechanic, but he said to me, back in 1952, that the best way to make engines make more power, you have to have some pressure in the inlet manifold!

as you know,by now, most modern cars are using some sort of forced induction.

a pressurized inlet system becomes less prone to problems of twists and turns,or humps and bumps in the manifolding and piping.

recent tests show that the velocity in the inlet ports actually slows DOWN when measured with very accurate testing equipment, as the boost pressure increases!!

HUH! what you say, guy says simple, the air DENSITY increases and becomes heavier so less speed but far more weight of Oxygen in the flow, and as you should know, its the oxygen content of the air is what we are looking for more power!

ALAH! NOX Nitrous, or forced induce, or the magic of Nitromethane, which carries its own Oxygen that is released when combustion occurs!

when done properly, makes a 100hp engine make 1000hp, LOL,LOL.

be OK for you, seeing as reliability is no problem for you!

 

I don't mind blowers, but I'm not a turbo fan, just too slow on the throttle response and bottom end is always lacking. but for this car I wanted a bigger displacement high revving all motor set up to keep it feeling like a jaguar

 

that is the exact fear i have calvin ive been doing a bit of reaserch(ok alot shoot me) i guess there are a few gadgets out there that hold air and release it when your coming off from low rpm it supplies the motor 5psi too get things rolling again. by the way i apologize for thread hijacking you earlier haha that was not my intention.

 

A properly engineered turbo installation is not all top end power with nothing down low. I drove a 2L Audi A4 a couple of months ago and it performed like a larger engine. It would pull up a steep hill loaded with gear and 2 people in top gear. Very impressive.

The problem is using a turbo that is too large and/or too low CR. Sizing correctly is the key. I think a 6.xL V12 with 9:1 CR and a turbo with low boost would be a great road car.

I did once have a turbo Nissan 3.0L I6 that ran 22psi of boost and it was as you described with no low down grunt. My last turbo car was a Subaru WRX and it was a great car with good low down torque (from a 2.0L), smaller turbo made a difference.

 

the trick is too get it too spool quickly as smaller turbos do holset turbos are known for their ability too spin up so ive been looking into them they are quite capable of more with a variety of modifications . im going for two holset hx52s with billet internals and fully polished.

 

turbos are very hard to get right, and they do have a slower throttle response than an all motor, when trying to build a lot of power
my mother drives an Audi A4 s line with the 2.0 and it doesn't have the lag but it doesn't produce much more power, than the naturally aspirated version.
where as my best friends grand national has a 3.8 making 550 and it's got a lag that can rip your face off

 

another update on the motor, got both heads bolted down and timing chain on, so all I need is the timing cover and the oil pans then I'll be ready to bring it home

 

 

So there are some of the pictures of the motor coming together, and there is a picture of the fj40 I'm working on at work, and there in.the backpack is how I manage a full time job motor work and college at once

 

looking good.

think you will make 500hp, N/A??

 

at this point Ron, it will make whatever it makes

 

looking good man!

 

I'm thinking it will make awesomeness in large quantities when it's up and running.

Subscribed.

 

JEH, interesting in your comment "when its up and running".


and very true, a JAGUAR car is a mystical thing. they can take possession!

 

some old pix from 1995,my engine on stand!

sorry to hi-jack.

 

back for another update, got the oil sump system all assembled. I need a front seal before the timing cover goes on. but the motor is coming along smoothly, the thing should be on.the road before Christmas

 

Yes these things take time, but you have gotten off the bench race it to the nuts and bolts of the build.

I'm really happy with my 4.0 but I do have to admit that se of the horses have left the barn and it makes me miss my Modified Volvo and want more power.