rydning

I have used several types of turbos earlier. The stock turbo with free flow 3" exhaust, boost very early, got 1 bar at 2200rpm. The GT3076 I have now with 500hp get 1bar 3500rpm and 1,5 bar at 3800rpm... What are your goals?

Hi Jon Its realy good to see that you have got your car running. And it looks good to. Do you have a video from outside while accelerating?

I dont think you will find any like that to Esprit. But you can probably get new pods to other brands to fit, like Supra, 200SX and so on..Or modify the stock instrument board so i fits there.

Hi.I have bought a 02 STI Prodrive to use in the winter up here...We have 6 mounts with snow here so my Esprit is not any paticular good in this conditions.. I need export documents to this car. Can any help me to find the direct phone and e-mail to the export department for the DVLA? There was to many options at the main number.

It will require a lot of work.You need to make a adapterplate to fit the engine to the gearbox and engine mounts? Is there a reason for that you want this engine?

Good reading. I have done a lot of R&D on this engine and its a good engine with some issues that needs to be done. The main problem is the problem related to the headgasked. Otherwise this engine seams to have very strong internals. Mahle high quality pistons,heavy rods(dont brake but dont like high rpms..),Good build and heavy cast crank (no need for steelcrank within resonable hp),with miner mods (new turbo+ fuel) it can take 400hp with litle money invested.

No,that was the next step. I put in liners that are solid in the block,problem was the loose liners that was moving/vibrating and caused the headgasked to fail.I also have ARP bolts and Autronic ECU with the right timing and fuel. I had problem already 400bhp with the ARP bolts,new ECU 450bhp and the liners attached solved it all.

Stock turbo will still be the limitations.I have know the max messured numbers on a dyno is 305bhp with a stock turbo for some few second,when the exhaust and IC is hot max is 270-280bhp..And when you see on the turbospec it is suposed to run out of breath at this hp level. There is no way you can get 330bhp with the stock 4 pot turbo...Only way to get that is with a 300 Sport that have a turbo with 350bhp capasity..

Update... It looks like I have find the solution for our headgasked problems.It have now lasted 2 seasons with 500bhp+. I`m now considdering to sell my Esprit or and go for a Radical track car and might modify it with turbo... 460kg/1000lbs 200hp stock with loads of downforce...And with the turbo mods and 400-500hp it will be more than fast..LOL But its hard to sell a car that I have put this much work into..

"We reach the set 1.3 bar max boost at 3200 rpm." You should get that boost before 3000rpm with the mods you have on your engine. My 2,2 with the same turbo and AR 0,82 turbine gets 1,5 at 3500rpm.. I think you should beginn saving for a aftermarced ECU,to bad that your very good modifyed engine is resticted by the stock ecu.just my toughts..

You might have to put a fuelgauge to look on while driving to see if it holds the pressure,if not you need a bigger fuelpump.If you run 3,0bar non vacum fuel pressure the fuel pressure should be 4,3bar @1,3boost and 4,5@1,5boost and so on...I gess your turbo is pretty much maxed out at 1,4 bar with your modifyed 2,6ltr engine.Anything above 1,4 bar will mostly give hotair and little hp gain.Mine is maxed at 1,5 and able to use 1,7 with racefuel and a lot of advanced timing (gives less backpressure because more burns inside the engine). What rpm do you get full boost (1,3bar)?

http://www.fastestlaps.com/track1.html The Evora is a very fast car for its weight on that test..276bhp/1380kg And you can see by the laptimes that cars with very good power/weight ratio wins on that track.. I have driven the Esprit a lot on the track from stock to my modifyed and feel that a stock V8 with good tyres would be aprox 1sec faster with equal tires...Modern performance cars is now delivered with summer tires with R-compounds (very expensive) and is the main reason for being fast on the track with all the weight they have to carry.. 46. BMW M3 Sedan (E90) 1:25.3 119

If putting on a complete aftermarked ECU,will also recuire custom triggersystem,coil setup and so on,since its nothing of the modern systems that will work with the old lotus enging management system. What do you use to tune the fuel? I use a Inovate Wideband lamda.I tune the fuel so the AF is 12,5 on racefuel I can use around AF13. But using stock timing you might need to go for a ritcher mixure because you are not able to tune the timing, and use AF 11-11,5,i dont recomend using any more fuel because it will wash down the cylinder walls for oil and cause to little lubrications. What fuel pump do you use? You gona need a Borsch 044 pump,or stock + a extra pump to be able to get enough fuel for 500bhp. I would have put bigger extra injectors so the lamda reads between AF11-12 if possible. You can also put on extra injectors managed by a Haltec extra fuel ecu or so.Witch is very easy to use. You can use the stock ecu to manage 1 of the extra injectors,and the Haltec to run the other. Putting bigger injectors like 500-1000cc in both places.You can probably use the 4 stock injectors with slighly higher fuel pressure.But you gona need way bigger where the 2 extra injectors are...remember stock is 264hp and you are going for 500bhp,,that will almost recuire 100% more fuel delivery. Its also several other ways to tune this engine with stock ecu.But I feel you will be better of with a extrafuel injector management.

Hi. I have strugglet a lot with the stock ecu earlier. And had 4 extra injectors with 2 fuelpumps to be able to get enough fuel at high boost/rpm.But this didnt solve the problem.And went trough 3 headgasked because the stock timing was to high and got smal deto that cased light headgasked failure so I got high pressure/temp in the cooling system. I gess this is the reason for your cooling problems.You also need to use the old termostat with early opening.I gess with your headgasked system solved It can take a lot before the headgasked fails completly. I did put a aftermarked (am) Autronic SM4 ECU on it to solved a lot of problems.It runs much better,with higer output better milage,Headgasked last much longer now on high boost.Using 1000cc injectors.Modern am ecu use a reverse pulse to close the injector to be able to get a precise fuel delivery at ligher load and idle. But It will not be better than the man who tunes it. The stock ecu is good for a stock engine but very limited on a higly modifyed engine like yours and you will be way better of with a aftermarked ecu.If I was living closer I could have helped you with putting a aftermarked ECU and programmed it to work.

This is realy to bad...And our season is pretty short here.. Did you do any work to the head like changing the valveguidens ? And did you messure the play of the valves to see how much wear the valveguidens had if you didnt change this? I broke the turbo on my 05 BMW530DA trailing my Lotus on the way to the track last weekend...endet up driving the Esprit 500km home... Have you taken of the head to investigate?Check if the timing belt is correct first,Then look for brooken valve springs and if the valve is secied in the guidens.