俄羅斯米格飛機製造集團（RSK MiG）的專家，已訂約提供技術上的協助給中國設計機構，稱增強J-10機身是一個合理的步驟，戰鬥機最初想要採用以色列Lavi飛機所使用的動力，緊湊的普拉特&惠特尼PW1120發動機，視為J-10的一種基礎。
然而，美國施加的出口限制迫使決定去安裝重量多出20%的俄國AL-31FN發動機，進氣量增加40%，需要一個更大的進氣口。
在2005 年後期，中國用於購買第二批AL-31FN發動機下了USD300百萬（3億美元）訂單；這些是Su-27戰鬥機的AL-31F衍生型用於單發戰鬥機，齒輪箱位於下面位置。在開始，它被認為合同用於採購與2001-02年提供的第一批54臺單位相同的發動機，已經安裝到發展原型和初期生產的J-10。然而，AL-31FN製造商莫斯科機器生產廠（MMPP）Salyut公司在2005年12月透露了訂購的是AL-31FN M1型，聲稱是一種新的AL-31FN生產規格。
附原文供對照參考：
China working on 'Super-10' advanced fighter
by Henry Ivanov JDW Correspondent
Moscow
China is developing an advanced version of the Chengdu Aircraft Industrial Corporation （CAC） J-10 multirole fighter aircraft, referred to as the Super-10, with a more powerful engine, thrust-vector control, stronger airframe and passive phased-array radar, according to Russian sources.
Russian Aircraft Corporation MiG （RSK-MiG） specialists, contracted to provide technical assistance to Chinese design houses, said the enhancement to the J-10 airframe is a logical step, since the fighter was initially intended to have the compact Pratt&Whitney PW1120 engine that powered the Israeli Lavi aircraft, which served as a basis for the J-10.
However, the imposition of US export restrictions forced the decision to install the 20 per cent heavier Russian AL-31FN engine, which requires a larger intake as it needs 40 per cent more air flow.
In late 2005 China placed a USD300 million order for a second batch of AL-31FN engines; these are a derivative of the Su-27's AL-31F for single-engine aircraft, with a lower positioning of the gearbox. At first, it was believed the contract was for the same engines as in the first batch of 54 units supplied in 2001-02 and installed into development prototypes and initial production J-10s. However, AL-31FN-maker Moscow Machine Production Plant （MMPP） Salyut in December 2005 revealed the order to be for the AL-31FN M1, which is claimed to be a new AL-31FN production standard.
The company's general manager, Yuri Eliseyev, said the new engine was purposely developed for what he referred to as the "Chinese Super-10 fighter". Four such engines have been seen assembled at MMPP Salyut's Moscow production site. One of these has been demonstrated undergoing fire testing, during which its swivel nozzle was deflected up/down and sideways at full power and reheated thrust.
JDW Jan 11, 2006: Super J-10 Fighter
The J-10 was originally designed to use the Zhemchug, a mechanically scanned slotted array by Phazotron, but some critical components were made impossible to copy.
The other Bureau, Tikhomirov, recently resumed a working relationship with the PLAAF, after having submitted an early prototype of their Pero in the late 90s but with no followup by the Chinese. They are now submitting a derivative of the Pero （is this the Panda?）. The Pero was originally designed for use on the Su-30KN.
Recall the recent large order for engines in late 2005. Most observers assumed it was for more of the AL-31FN, but this is not so. It was for a new engine, the AL-31FN-M1. The M1 features an enlarged fan with inlet diameter of 924 mm instead of 902 mm, which improved thrust from 122.6kN to 132.4 kN. Also features a swivel nozzle developed by Salyut in conjunction with Zavod imeni Klimova. Similar to the KliVT used on the RD-33OVT of the Mig-29OVT- it's improved over the IAF's Su-30MKI in that it deflects in BOTH pitch and yaw, rather than pitch only.
Expected to have a MTBF of 1000 hours, the requirement set by the PLAAF （which perhaps will also be the MTB of the WS-10A, if and when it enters service）, and a lifetime of 2000 hours. Future upgrades include the M2 and M3, with the M3 having a new cooling system, combustor, and LP compressor that boost thrust to 142.2 kN, and give it a longer lifetime.
基本要點：
J10最初計畫使用珍珠雷達 ,費佐特龍公司的一種機械掃瞄平板縫隙陣列雷達,但有些評論認為該雷達部件中國無法仿製.
另一設計局,無線電技術設計研究院NIIP,近來恢復了與中國空軍的合作關係.在這之前,他們曾在90年代後期向中國提供過他們的Pero雷達的原型樣機.現在他們又提供了Pero雷達的發展型.蘇30KN最初曾計畫使用Pero雷達
回想起2005年晚些時候發動機的大量定購.許多觀察家認為很可能是AL31FN,但事實並非如此.這是一種新的發動機AL-31FN-M1.M1的特徵是加大進口風扇直徑（由902MM增加到924MM）,推力由122.6KN增加到132.4KN.其它的特徵是一個由禮炮聯合體和克里莫夫合作的全向矢量噴管,類似於克里莫夫用於米格 29OVT的發動機RD33OVT的噴管,該噴管在印度空軍的蘇30MKI基礎上做了改進,能作俯仰和偏航的偏轉而不僅僅是蘇30MKI的俯仰偏轉
中國空軍期待該發動機有1000小時的大修間隔（這也可能也是WS10A服役時的大修間隔）和2000小時的壽命.未來的升級包括M2和M3,在M3上將換裝新的渦輪冷卻系統,燃燒室和低壓壓氣機（風扇）,能使推力增加到142.2KN,並能得到更長的壽命.
