333pg333

Not sure where you're seeing under 230hp on that motor you linked to?

philip77o

278 RWHP / 339.3 FtLbs. @ 20 psi.


Lindsey 1989 Turbo S:

Lindsey/951MAX Chips
Lindsey Racing 3" Exhaust
Lindsey Racing Boost Enhancer
3.0 Bar Fuel Regulator

Lindsey Racing Wastegate Shims

That's the same mods I'm talking minus the k26/8

Reimu

We also need to keep in mind that the small stuff based on the condition of the motor can take a big chunk of power.

That long crossover pipe doesn't need much of a leak to sap 30hp

eman930

So yea looks like close to 280hp.... only thing is IDK if they have a special chip but Im running the same chips/exhaust/3.0bar, and a MBC with a LR dual port.. and Im at 17psi and Im running out of fue, I had to add a extra 3% fuel with the FQS to helpl, if I went to 20psi Id be WAAAY Lean. SO I WOULDNT recommend going past 17psi with a stock fuel system

fejjj

My 89 made 308 whp and 330lbs of torque on a Mustang DYNO, 18 lbs boost at 5500 RPM.

K27/8 turbo
E85
M tune w/80lb injectors
3 bar FPR
Test pipe

t3rra

Which is close to 370 fly hp which would make sense as the 27/8 is around 30/40 hp upgrade over 26/8.

LR dose seem a little high, 330 fly. Why would you have boost enhancer still and not mbc or Ebc

Voith

I was looking at audi sport quattro specs the other day, and I cant get how they could made it to have so much power with K27 and 2.1 L full aluminum engine..

540bhp 590Nm, wow.

4 valve/cylinder + 7.5:1CR and extra cylinder make such a difference, or what is the limiting problem with 951 engine in such way, that even diesel engine of same displacement can easily and cheap be upgraded to more power?..

Ive read a dozen times that K27 wont flow much past 300whp, yet on S1 it flows enough for 460whp with 2.1L engine?

Is that assumption being made based on compressor only, or on compressor with 951 based turbine side (#8) ?

333pg333

What fuel / boost were they running? That is a lot of torque and quite early too for a small capacity motor.

Voith

Lancia Delta S4 - 1,759 cc DOHC 16V twincharged I4 - 560hp ~ 1000hp (@ 5bar boost).

They used 118 octane race gas if I remember correctly.

This:



If these aluminum blocks could handle these kind of boost pressures, why cant it be done with 951?

Absolute Beast.

http://homepage.virgin.net/shalco.com/lancia_gp_s.htm

Reimu

I think you're looking at the specs for the racecar, not the roadcar version
There are people that can build you a low displacement 500hp 944 but it won't be on pump gas and how long it will last is anyone's guess.

Voith

Road going race car. Most of remaining group B cars that are not in museums, are now registered for road use. their engine was intended to last trough the season and that on the road is eternity.

When modifying a car like 951 my goal is to get race car in sheep clothing with license plates and more than 300WHP.

So why cant 951 engine even with race gas hold as much boost as rally cars of the day with 0.8L less displacement aluminum engines, and same turbines and hardware we have access to today?

I mean they pushed bmw 1.5 liter engine to 1400 horsepowers, and 951s cant get much past 300 hp, the same power level as modern turbodiesels of same displacement... Why? What is the limiting factor?

Voith

Here is a video of one of quattros, check out the advanced pit work of the day at 4:15

V2Rocket

but its got what, 19:1 CR and running 30psi+ boost? no throttle, and direct injection at exactly the right millisecond?

diesels are another class of power...lucifer's fuel is some good sauce.


one thing that still surprises me, relevant to this thread, is the kind of power people can still manage with a K26. after handling a few of them for parts sales/customers they are just tiny! it looks more like the kind of thing that would be the first stage in a compound system.

visited a RLer the other day who had recently put an HX35, now that is a decent-sized turbo!

Voith

Lancia triflux engine I posted few posts ago, has 2x K26, and they made 1000HP on 1.76L engine.

eman930

That's not what we are saying... A 951 can make 350,400,500hp, but it needs things like Better turbo,better head work, Solid cam, better fueling, better rods, Go look at the link I posted of Dyno charts on LR website it list the mods done... Most are beyond bold on stuff. From what I've read to get a solid 951 engine anywhere north of 350hp you almost have to go into the head and block/pistons